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Kabieva S, Zhumanazarova G, Zhaslan R, Zhumabayeva G, Ukhov A, Fedorishin D, Gubankov A, Tarikhov F, Yerkhan O, Irina K, Yerkassov R, Bakibaev A. Obtaining New Biocompatible Composite Materials with Antibacterial Properties Based on Diatomite and Biologically Active Compounds. Molecules 2024; 29:1608. [PMID: 38611887 PMCID: PMC11013188 DOI: 10.3390/molecules29071608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/24/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
This study aimed to create new composite materials based on diatomite-a non-organic porous compound-through its surface modification with bioactive organic compounds, both synthetic and natural. Chloramphenicol, tetrahydroxymethylglycoluril and betulin were used as modifying substances. Composite materials were obtained by covering the diatomite surface with bioactive substance compounds as a solution and material dispersion in it. The materials were characterized by IR spectroscopy, SEM and X-ray photoelectron spectroscopy. For the biocomposites, the hemolytic effect, plasma proteins' adsorption on the surface and the antibacterial activity of the obtained materials were studied. Results show that the obtained materials are promising for medicine and agriculture.
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Affiliation(s)
- Saule Kabieva
- Department of Chemical Technology and Ecology, Karaganda Industrial University, Temirtau 101400, Kazakhstan; (S.K.); (R.Z.)
| | - Gaziza Zhumanazarova
- Department of Chemical Technology and Ecology, Karaganda Industrial University, Temirtau 101400, Kazakhstan; (S.K.); (R.Z.)
| | - Rymgul Zhaslan
- Department of Chemical Technology and Ecology, Karaganda Industrial University, Temirtau 101400, Kazakhstan; (S.K.); (R.Z.)
| | - Gulistan Zhumabayeva
- Faculty of Natural Sciences, L.N. Gumilyov Eurasian National University, St. Satbaeva 2, Almaty District, Astana 010000, Kazakhstan; (G.Z.); (O.Y.); (R.Y.)
| | - Arthur Ukhov
- Chemical Faculty, National Research Tomsk State University, Arkady Ivanov St. 49, Tomsk 634028, Russia; (A.U.); (D.F.); (A.G.); (F.T.); (K.I.); (A.B.)
| | - Dmitry Fedorishin
- Chemical Faculty, National Research Tomsk State University, Arkady Ivanov St. 49, Tomsk 634028, Russia; (A.U.); (D.F.); (A.G.); (F.T.); (K.I.); (A.B.)
| | - Alexander Gubankov
- Chemical Faculty, National Research Tomsk State University, Arkady Ivanov St. 49, Tomsk 634028, Russia; (A.U.); (D.F.); (A.G.); (F.T.); (K.I.); (A.B.)
| | - Farkhad Tarikhov
- Chemical Faculty, National Research Tomsk State University, Arkady Ivanov St. 49, Tomsk 634028, Russia; (A.U.); (D.F.); (A.G.); (F.T.); (K.I.); (A.B.)
| | - Ordabay Yerkhan
- Faculty of Natural Sciences, L.N. Gumilyov Eurasian National University, St. Satbaeva 2, Almaty District, Astana 010000, Kazakhstan; (G.Z.); (O.Y.); (R.Y.)
| | - Kurzina Irina
- Chemical Faculty, National Research Tomsk State University, Arkady Ivanov St. 49, Tomsk 634028, Russia; (A.U.); (D.F.); (A.G.); (F.T.); (K.I.); (A.B.)
| | - Rakhmetulla Yerkassov
- Faculty of Natural Sciences, L.N. Gumilyov Eurasian National University, St. Satbaeva 2, Almaty District, Astana 010000, Kazakhstan; (G.Z.); (O.Y.); (R.Y.)
| | - Abdigali Bakibaev
- Chemical Faculty, National Research Tomsk State University, Arkady Ivanov St. 49, Tomsk 634028, Russia; (A.U.); (D.F.); (A.G.); (F.T.); (K.I.); (A.B.)
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Saridag AM, Karagoz ID, Wachsmann-Hogiu S, Kahraman M. Diatomite-Based, Flexible SERS Immunosensor Platform for Rapid, Specific, and Sensitive Detection of Circulating Cancer-Specific Protein Biomarkers in Serum Using Raman Probes. ACS Appl Bio Mater 2024; 7:1878-1887. [PMID: 38414330 DOI: 10.1021/acsabm.3c01253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Cancer is one of the most actively researched diseases having a high mortality rate when not detected at an early stage. Thus, rapid, simultaneous, and sensitive quantification of cancer biomarkers plays an important role in early diagnosis, with patient impact to disability adjusted life years. Herein, a diatomite-based SERS flexible platform for the rapid and sensitive detection of circulating cancer-specific protein biomarkers in serum is presented. In this approach, diatomite/AgNPs strips with maximum SERS activity prepared using the layer-by-layer (LbL) technique were modified with specific antibodies, and specific antigens (HER2, CA15-3, PSA, and MUC4) were captured and detected. By using Raman probes specific to the captured antigens in serum, a SERS limit of detection (LOD) of 0.1 ng/mL was measured (calculated LOD < 0.1 ng/mL). This value is lower than the cutoff amount of cancer antigens in the person's blood. The specificity for the antigens of each antibody was calculated to be higher than 95%. As a result, an immunosensor for rapid detection of cancer biomarkers in serum with good specificity, high sensitivity, good reproducibility, and low cost has been demonstrated. Overall, we show that the prepared diatomite-based SERS substrate with a high surface-to-volume ratio is a useable platform for immunoassay tests.
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Affiliation(s)
- Ayse Mine Saridag
- Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, 27310 Gaziantep, Turkey
| | - Isik Didem Karagoz
- Department of Biology, Faculty of Arts and Sciences, Gaziantep University, 27310 Gaziantep, Turkey
| | | | - Mehmet Kahraman
- Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, 27310 Gaziantep, Turkey
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Zhang Y, Zhang W, Ma G, Nian B, Hu Y. Octadecyl and sulfonyl modification of diatomite synergistically improved the immobilization efficiency of lipase and its application in the synthesis of pine sterol esters. Biotechnol J 2024; 19:e2300615. [PMID: 38472086 DOI: 10.1002/biot.202300615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 03/14/2024]
Abstract
Phytosterols usually have to be esterified to various phytosterol esters to avoid their disadvantages of unsatisfactory solubility and low bioavailability. The enzymatic synthesis of phytosterol esters in a solvent-free system has advantages in terms of environmental friendliness, sustainability, and selectivity. However, the limitation of the low stability and recyclability of the lipase in the solvent-free system, which often requires a relatively high temperature to induce the viscosity, also increased the industrial production cost. In this context, a low-cost material, namely diatomite, was employed as the support in the immobilization of Candida rugosa lipase (CRL) due to its multiple modification sites. The Fe3 O4 was also then introduced to this system for quick and simple separation via the magnetic field. Moreover, to further enhance the immobilization efficiency of diatomite, a modification strategy which involved the octadecyl and sulfonyl group for regulating the hydrophobicity and interaction between the support and lipase was successfully developed. The optimization of the ratio of the modifiers suggested that the -SO3 H/C18 (1:1.5) performed best with an enzyme loading and enzyme activity of 84.8 mg·g-1 and 54 U·g-1 , respectively. Compared with free CRL, the thermal and storage stability of CRL@OSMD was significantly improved, which lays the foundation for the catalytic synthesis of phytosterol esters in solvent-free systems. Fortunately, a yield of 95.0% was achieved after optimizing the reaction conditions, and a yield of 70.0% can still be maintained after six cycles.
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Affiliation(s)
- Yifei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Wei Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Guangzheng Ma
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Binbin Nian
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Yi Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
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Park JH, Yoon CB. Experimental Study of the Moisture Resistance of Cement Mortar Using Pozzolan Materials and Calcium Stearate. Materials (Basel) 2024; 17:1014. [PMID: 38473486 DOI: 10.3390/ma17051014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/18/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024]
Abstract
Nanosilica and diatomite are pozzolanic resources rich in SiO2. In this study, the purpose of this study was to improve the moisture resistance of the specimen by producing a mixed material using pozzolanic materials and calcium stearate and adding it to cement mortar while stirring. The results showed that the hydration reaction was not activated when calcium stearate adhered to the fine particles of nanosilica; it existed simply in the form of a filler inside the specimen. Diatomite, due to its atypical particles and porosity, may have greater water tightness than nanosilica because of the pozzolanic reaction in particles to which calcium stearate is not attached.
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Affiliation(s)
- Jang Hyun Park
- E-Moblilty Lab, Hankyong National University, Anseong 17579, Republic of Korea
| | - Chang Bok Yoon
- Architectural Engineering, Seoil University, Seoul 02192, Republic of Korea
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Min KH, Kim DH, Youn S, Pack SP. Biomimetic Diatom Biosilica and Its Potential for Biomedical Applications and Prospects: A Review. Int J Mol Sci 2024; 25:2023. [PMID: 38396701 PMCID: PMC10889112 DOI: 10.3390/ijms25042023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/28/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Diatom biosilica is an important natural source of porous silica, with three-dimensional ordered and nanopatterned structures referred to as frustules. The unique features of diatom frustules, such as their high specific surface area, thermal stability, biocompatibility, and adaptable surface chemistry, render diatoms valuable materials for high value-added applications. These attributes make diatoms an exceptional cost-effective raw material for industrial use. The functionalization of diatom biosilica surface improves its biophysical properties and increases the potential applications. This review focuses on the potential uses of diatom biosilica including traditional approaches and recent progress in biomedical applications. Not only well-studied drug delivery systems but also promising uses on bone regeneration and wound healing are covered. Furthermore, considerable aspects and possible future directions for the use of diatom biosilica materials are proposed to develop biomedical applications and merit further exploration.
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Affiliation(s)
- Ki Ha Min
- Institution of Industrial Technology, Korea University, Sejong 30019, Republic of Korea;
| | - Dong Hyun Kim
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
| | - Sol Youn
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
| | - Seung Pil Pack
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea; (D.H.K.); (S.Y.)
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Lu J, Fan Y, Lou X, Xie W, Zhao B, Zhou H, Fan T. Diatomite-Based Recyclable and Green Coating for Efficient Radiative Cooling. Biomimetics (Basel) 2024; 9:50. [PMID: 38248624 PMCID: PMC10813072 DOI: 10.3390/biomimetics9010050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/07/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
Radiative cooling is a promising strategy to address energy challenges arising from global warming. Nevertheless, integrating optimal cooling performance with commercial applications is a considerable challenge. Here, we demonstrate a scalable and straightforward approach for fabricating green radiative cooling coating consisting of methyl cellulose matrix-random diatomites with water as a solvent. Because of the efficient scattering of the porous morphology of diatomite and the inherent absorption properties of both diatomite and cellulose, the aqueous coating exhibits an excellent solar reflectance of 94% in the range of 0.25-2.5 μm and a thermal emissivity of 0.9 in the range of 8-14 µm. During exposure to direct sunlight at noon, the obtained coating achieved a maximum subambient temperature drop of 6.1 °C on sunny days and 2.5 °C on cloudy days. Furthermore, diatomite is a naturally sourced material that requires minimal pre-processing, and our coatings can be prepared free from harmful organic compounds. Combined with cost-effectiveness and environmental friendliness, it offers a viable path for the commercial application of radiative cooling.
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Affiliation(s)
- Jing Lu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (J.L.); (Y.F.); (X.L.); xie-- (W.X.); (B.Z.)
| | - Yile Fan
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (J.L.); (Y.F.); (X.L.); xie-- (W.X.); (B.Z.)
| | - Xing Lou
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (J.L.); (Y.F.); (X.L.); xie-- (W.X.); (B.Z.)
| | - Wei Xie
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (J.L.); (Y.F.); (X.L.); xie-- (W.X.); (B.Z.)
| | - Binyuan Zhao
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (J.L.); (Y.F.); (X.L.); xie-- (W.X.); (B.Z.)
| | - Han Zhou
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (J.L.); (Y.F.); (X.L.); xie-- (W.X.); (B.Z.)
- Future Materials Innovation Center, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 201203, China
| | - Tongxiang Fan
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; (J.L.); (Y.F.); (X.L.); xie-- (W.X.); (B.Z.)
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Setlak K, Mikuła J, Łach M. Application of Industrial Waste Materials by Alkaline Activation for Use as Geopolymer Binders. Materials (Basel) 2023; 16:7651. [PMID: 38138793 PMCID: PMC10744968 DOI: 10.3390/ma16247651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
The purpose of this study is to synthesize geopolymer binders as an environmentally friendly alternative to conventional cement using available local raw materials. Waste materials such as chalcedonite (Ch), amphibolite (A), fly ash from lignite combustion (PB), and diatomite dust (D) calcined at 900 °C were used to produce geopolymer binders. Metakaolin (M) was used as an additional modifier for binders based on waste materials. The base materials were subjected to fluorescence X-ray fluorescence (XRF) analysis and X-ray diffractometry (XRD) to determine chemical and phase composition. A laser particle size analysis was also performed. The various mixtures of raw materials were activated with a 10 M solution of NaOH and sodium water glass and then annealed for 24 h at 60 °C. The produced geopolymer binders were conditioned for 28 days under laboratory conditions and then subjected to microstructural analysis (SEM) and flexural and compressive strength tests. The best compressive strength results were obtained by the Ch + PB samples-more than 57 MPa, while the lowest results were obtained by the Ch + D+A + M samples-more than 20 MPa. On the other hand, as a result of the flexural strength tests, the highest flexural results were obtained by D + A + M + PB binders-more than 12 MPa, and the lowest values were obtained by binders based on Ch + D+A + M-about 4.8 MPa.
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Affiliation(s)
- Kinga Setlak
- Faculty of Materials Engineering and Physics, Cracow University of Technology, Jana Pawła II 37, 31-864 Cracow, Poland; (J.M.); (M.Ł.)
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Liu HL, Zhang Y, Lv XX, Cui MS, Cui KP, Dai ZL, Wang B, Weerasooriya R, Chen X. Efficient Degradation of Sulfamethoxazole by Diatomite-Supported Hydroxyl-Modified UIO-66 Photocatalyst after Calcination. Nanomaterials (Basel) 2023; 13:3116. [PMID: 38133013 PMCID: PMC10745632 DOI: 10.3390/nano13243116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/29/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023]
Abstract
Sulfamethoxazole (SMX) is a widely used antibiotic to treat bacterial infections prevalent among humans and animals. SMX undergoes several transformation pathways in living organisms and external environments. Therefore, the development of efficient remediation methods for treating SMX and its metabolites is needed. We fabricated a photo-Fenton catalyst using an UIO-66 (Zr) metal-organic framework (MOF) dispersed in diatomite by a single-step solvothermal method for hydroxylation (HO-UIO-66). The HO-UIO-66-0/DE-assisted Fenton-like process degraded SMX with 94.7% efficiency; however, HO-UIO-66 (Zr) is not stable. We improved the stability of the catalyst by introducing a calcination step. The calcination temperature is critical to improving the catalytic efficiency of the composite (for example, designated as HO-UIO-66/DE-300 to denote hydroxylated UIO-66 dispersed in diatomite calcined at 300 °C). The degradation of SMX by HO-UIO-66/DE-300 was 93.8% in 120 min with 4 mmol/L H2O2 at pH 3 under visible light radiation. The O1s XPS signatures signify the stability of the catalyst after repeated use for SMX degradation. The electron spin resonance spectral data suggest the role of h+, •OH, •O2-, and 1O2 in SMX degradation routes. The HO-UIO-66/DE-300-assisted Fenton-like process shows potential in degrading pharmaceutical products present in water and wastewater.
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Affiliation(s)
- Hui-Lai Liu
- Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (H.-L.L.); (Y.Z.); (X.-X.L.); (M.-S.C.); (K.-P.C.)
- Key Lab of Aerospace Structural Parts Forming Technology and Equipment of Anhui Province, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei 230009, China;
| | - Yu Zhang
- Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (H.-L.L.); (Y.Z.); (X.-X.L.); (M.-S.C.); (K.-P.C.)
- Key Lab of Aerospace Structural Parts Forming Technology and Equipment of Anhui Province, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei 230009, China;
| | - Xin-Xin Lv
- Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (H.-L.L.); (Y.Z.); (X.-X.L.); (M.-S.C.); (K.-P.C.)
- Key Lab of Aerospace Structural Parts Forming Technology and Equipment of Anhui Province, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei 230009, China;
| | - Min-Shu Cui
- Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (H.-L.L.); (Y.Z.); (X.-X.L.); (M.-S.C.); (K.-P.C.)
| | - Kang-Ping Cui
- Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (H.-L.L.); (Y.Z.); (X.-X.L.); (M.-S.C.); (K.-P.C.)
| | - Zheng-Liang Dai
- Anqing Changhong Chemical Co., Ltd., Anqing 246002, China; (Z.-L.D.); (B.W.)
| | - Bei Wang
- Anqing Changhong Chemical Co., Ltd., Anqing 246002, China; (Z.-L.D.); (B.W.)
| | - Rohan Weerasooriya
- Key Lab of Aerospace Structural Parts Forming Technology and Equipment of Anhui Province, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei 230009, China;
- National Centre for Water Quality Research, National Institute of Fundamental Studies, Hantana, Kandy 20000, Sri Lanka
| | - Xing Chen
- Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (H.-L.L.); (Y.Z.); (X.-X.L.); (M.-S.C.); (K.-P.C.)
- Key Lab of Aerospace Structural Parts Forming Technology and Equipment of Anhui Province, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei 230009, China;
- National Centre for Water Quality Research, National Institute of Fundamental Studies, Hantana, Kandy 20000, Sri Lanka
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Wang X, Wang J, Li J, Du Y, Wu J, He H. Fabrication of Nitrogen-Doped Carbon@Magnesium Silicate Composite by One-Step Hydrothermal Method and Its High-Efficiency Adsorption of As(V) and Tetracycline. Materials (Basel) 2023; 16:5338. [PMID: 37570044 PMCID: PMC10420030 DOI: 10.3390/ma16155338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023]
Abstract
Tetracycline (TC) and arsenic contaminants are two main pollutants in aquaculture and livestock husbandry, and they have drawn worldwide attention. To address this issue, a novel N-doped carbon@magnesium silicate (CMS) was fabricated via a facile and low-cost hydrothermal route, adopting glucose and ammonia as C and N sources, respectively. The synergetic combination of carbon and magnesium silicate makes CMS possess a high surface area of 201 m2/g and abundant functional groups. Due to the abundant C- and N-containing functional groups and Mg-containing adsorptive sites, the maximum adsorption capacity values of CMS towards As(V) and TC are 498.75 mg/g and 1228.5 mg/g, respectively. The type of adsorption of As(V) and TC onto CMS is monolayer adsorption. An adsorption kinetic study revealed that the mass transfer and intraparticle process dominates the sorption rate of As(V) and TC adsorption onto CMS, respectively. Various functional groups synthetically participate in the adsorption process through complexion, π-π EDA interactions, and hydrogen bonds. This work provides a one-step, low-cost route to fabricate a N-doped carbonaceous adsorbent with a high surface area and abundant functional groups, which has great potential in the application of practical sewage treatment.
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Affiliation(s)
- Xuekai Wang
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (X.W.)
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jinshu Wang
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (X.W.)
| | - Jianjun Li
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yucheng Du
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (X.W.)
| | - Junshu Wu
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (X.W.)
| | - Heng He
- Key Laboratory of Advanced Functional Materials, Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; (X.W.)
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Kashin AD, Sedelnikova MB, Uvarkin PV, Ugodchikova AV, Luginin NA, Sharkeev YP, Khimich MA, Bakina OV. Functionalizing Diatomite-Based Micro-Arc Coatings for Orthopedic Implants: Influence of TiO 2 Addition. Biomimetics (Basel) 2023; 8:280. [PMID: 37504168 PMCID: PMC10377051 DOI: 10.3390/biomimetics8030280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/20/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
The method of micro-arc oxidation has been utilized to synthesize a protective biocompatible coating for a bioresorbable orthopedic Mg implant. This paper presents the results of comprehensive research of micro-arc coatings based on diatomite-a biogenic material consisting of shells of diatom microalgae. The main focus of this study was the functionalization of diatomite-based micro-arc coatings by incorporating particles of titania (TiO2) into them. Various properties of the resulting coatings were examined and evaluated. XRD analysis revealed the formation of a new magnesium orthosilicate phase-forsterite (Mg2SiO4). It was established that the corrosion current density of the coatings decreased by 1-2 orders of magnitude after the inclusion of TiO2 particles, depending on the coating process voltage. The adhesion strength of the coatings increased following the particle incorporation. The processes of dissolution of both coated and uncoated samples in a sodium chloride solution were studied. The in vitro cell viability was assessed, which showed that the coatings significantly reduced the cytotoxicity of Mg samples.
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Affiliation(s)
- Alexander D Kashin
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Mariya B Sedelnikova
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Pavel V Uvarkin
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Anna V Ugodchikova
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
- Laboratory of Plasma Synthesis of Materials, Troitsk Institute for Innovation & Fusion Research, Moscow Region, Troitsk 108840, Russia
| | - Nikita A Luginin
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Yurii P Sharkeev
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Margarita A Khimich
- Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Olga V Bakina
- Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
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11
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Gondek K, Micek P, Baran A, Bajda T, Kowal J, Lis M, Wyrobisz-Papiewska A, Wojtysiak D, Smoroń K. Modified Natural Diatomite with Various Additives and Its Environmental Potential. Materials (Basel) 2023; 16:4494. [PMID: 37374677 DOI: 10.3390/ma16124494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023]
Abstract
Diatomite has recently been the subject of intensive scientific research aimed at its extensive use in industry, breeding and agriculture. The only active diatomite mine is in Jawornik Ruski, in the Podkarpacie region of Poland. Chemical pollution in the environment, including that from heavy metals, poses a threat to living organisms. Reducing the mobility of heavy metals in the environment through the use of diatomite (DT) has recently gained much interest. More effective immobilisation of heavy metals in the environment with DT, mainly through the modification of its physical and chemical properties by various methods, should be applied. The aim of this research was to develop a simple and inexpensive material showing more favourable chemical and physical properties compared with unenriched DT in terms of metal immobilisation. Diatomite (DT), after calcination, was used in the study, considering three grain fractions, i.e., 0-1 mm (DT1); 0-0.5 mm (DT2) and 5-100 µm (DT3). Biochar (BC), dolomite (DL) and bentonite (BN) were used as additives. The proportion of DTs in the mixtures amounted to 75%, and of the additive, 25%. The use of unenriched DTs after calcination poses the risk of releasing heavy metals into the environment. Enrichment of the DTs with BC and DL resulted in a reduction or absence of Cd, Zn, Pb and Ni in aqueous extracts. It was found that for the specific surface area values obtained, the additive used for the DTs was of crucial importance. The reduction in DT toxicity has been proven under the influence of various additives. The mixtures of the DTs with DL and BN had the least toxicity. The obtained results have economic importance, as the production of the best quality sorbents from locally available raw materials reduces transport costs and thus the environmental impact. In addition, the production of highly efficient sorbents reduces the consumption of critical raw materials. It is estimated that the savings from producing sorbents with the parameters described in the article can be significant in comparison with popular competitive materials of other origins.
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Affiliation(s)
- Krzysztof Gondek
- Department of Agricultural and Environmental Chemistry, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120 Krakow, Poland
| | - Piotr Micek
- Department of Nutrition, Animal Biotechnology and Fisheries, University of Agriculture in Kraków, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Agnieszka Baran
- Department of Agricultural and Environmental Chemistry, University of Agriculture in Krakow, Al. Mickiewicza 21, 31-120 Krakow, Poland
| | - Tomasz Bajda
- Department of Mineralogy, Petrography and Geochemistry, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Jerzy Kowal
- Department of Zoology and Animal Welfare, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Marcin Lis
- Department of Zoology and Animal Welfare, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Anna Wyrobisz-Papiewska
- Department of Zoology and Animal Welfare, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Dorota Wojtysiak
- Department of Genetics, Animal Breeding and Ethology, University of Agriculture in Kraków, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Krzysztof Smoroń
- Specialized Mining Company "Górtech" Sp. z o.o., Ul. Galicyjska 1/43b, 31-586 Krakow, Poland
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12
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Alvarado C, Alvarado-Quintana H, Siche R. Ceramic Thermal Insulator Based on Diatomite Obtained by Starch Consolidation Casting. Materials (Basel) 2023; 16:ma16114028. [PMID: 37297160 DOI: 10.3390/ma16114028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/21/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023]
Abstract
Researchers are continuously seeking to develop new materials to protect against inclement weather and thus optimize energy efficiency in housing. This research aimed to determine the influence of corn starch percentage on the physicomechanical and microstructural properties of a diatomite-based porous ceramic. The starch consolidation casting technique was applied to fabricate a diatomite-based thermal insulating ceramic with hierarchical porosity. Diatomite mixtures with 0%, 10%, 20%, 30%, and 40% starch were consolidated. The results show that starch content significantly influences apparent porosity, and this, in turn, influences several parameters, such as thermal conductivity, diametral compressive strength, microstructure, and water absorption of diatomite-based ceramics. The porous ceramic processed by the starch consolidation casting method corresponding to the mixture of diatomite with 30% starch obtained the best properties, with a thermal conductivity of 0.0984 W/m·K, an apparent porosity of 57.88%, a water absorption of 58.45%, and a diametral compressive strength of 35.18 kg/cm2 (3.45 MPa). Our results reveal that the diatomite-based ceramic thermal insulator obtained by starch consolidation is effective for use on roofs to improve thermal comfort in dwellings located in cold regions.
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Affiliation(s)
- Cinthya Alvarado
- Carrera de Ingeniería Civil, Facultad de Ingeniería, Universidad Privada del Norte, Trujillo 13011, Peru
| | - Hernán Alvarado-Quintana
- Departamento de Ingeniería de Materiales, Facultad de Ingeniería, Universidad Nacional de Trujillo, Trujillo 13011, Peru
| | - Raúl Siche
- Facultad de Ciencias Agropecuarias, Universidad Nacional de Trujillo, Trujillo 13011, Peru
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13
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Costafreda JL, Martín DA, Astudillo B, Presa L, Parra JL, Sanjuán MA. Diatomites from the Iberian Peninsula as Pozzolans. Materials (Basel) 2023; 16:ma16103883. [PMID: 37241512 DOI: 10.3390/ma16103883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/09/2023] [Accepted: 05/21/2023] [Indexed: 05/28/2023]
Abstract
The object of this work is to study and characterize diatomites from the southeast of the Iberian Peninsula to establish their character and quality as natural pozzolans. This research carried out a morphological and chemical characterization study of the samples using SEM and XRF. Subsequently, the physical properties of the samples were determined, including thermic treatment, Blaine particle finesse, real density and apparent density, porosity, volume stability, and the initial and final setting times. Finally, a detailed study was conducted to establish the technical properties of the samples through chemical analysis of technological quality, chemical analysis of pozzolanicity, mechanical compressive strength tests at 7, 28, and 90 days, and a non-destructive ultrasonic pulse test. The results using SEM and XRF show that the samples are composed entirely of colonies of diatoms whose bodies are formed by silica between 83.8 and 89.99% and CaO between 5.2 and 5.8%. Likewise, this indicates a remarkable reactivity of the SiO2 present in both natural diatomite (~99.4%) and calcined diatomite (~99.2%), respectively. Sulfates and chlorides are absent, while the insoluble residue portion for natural diatomite is 1.54% and 1.92% for calcined diatomite, values comparatively lower than the standardized 3%. On the other hand, the results of the chemical analysis of pozzolanicity show that the samples studied behave efficiently as natural pozzolans, both in a natural and calcined state. The mechanical tests establish that the mechanical strength of the mixed Portland cement and natural diatomite specimens (52.5 MPa) with 10% PC substitution exceeds the reference specimen (51.9 MPa) after 28 days of curing. In the case of the specimens made with Portland cement and calcined diatomite (10%), the compressive strength values increase even more and exceed the reference specimen at both 28 days (54 MPa) and 90 days (64.5 MPa) of curing. The results obtained in this research confirm that the diatomites studied are pozzolanic, which is of vital importance because they could be used to improve cements, mortars, and concrete, which translates to a positive advantage in the care of the environment.
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Affiliation(s)
- Jorge L Costafreda
- Escuela Técnica Superior de Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, C/Ríos Rosas, 21, 28003 Madrid, Spain
| | - Domingo A Martín
- Escuela Técnica Superior de Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, C/Ríos Rosas, 21, 28003 Madrid, Spain
- Laboratorio Oficial para Ensayos de Materiales de Construcción (LOEMCO), C/Eric Kandell, 1, 28906 Getafe, Spain
| | - Beatriz Astudillo
- Laboratorio Oficial para Ensayos de Materiales de Construcción (LOEMCO), C/Eric Kandell, 1, 28906 Getafe, Spain
| | - Leticia Presa
- Escuela Técnica Superior de Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, C/Ríos Rosas, 21, 28003 Madrid, Spain
| | - José Luis Parra
- Escuela Técnica Superior de Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, C/Ríos Rosas, 21, 28003 Madrid, Spain
| | - Miguel A Sanjuán
- Department of Science and Technology of Building Materials, Civil Engineering School, Technical University of Madrid, 28040 Madrid, Spain
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Sedelnikova MB, Kashin AD, Uvarkin PV, Tolmachev AI, Sharkeev YP, Ugodchikova AV, Luginin NA, Bakina OV. Porous Biocoatings Based on Diatomite with Incorporated ZrO 2 Particles for Biodegradable Magnesium Implants. J Funct Biomater 2023; 14:jfb14050241. [PMID: 37233351 DOI: 10.3390/jfb14050241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/04/2023] [Accepted: 04/21/2023] [Indexed: 05/27/2023] Open
Abstract
In the present work, the surface of a biodegradable Mg alloy was modified to create porous diatomite biocoatings using the method of micro-arc oxidation. The coatings were applied at process voltages in the range of 350-500 V. We have studied the influence of the addition of ZrO2 microparticles on the structure and properties of diatomite-based protective coatings for Mg implants. The structure and properties of the resulting coatings were examined using a number of research methods. It was found that the coatings have a porous structure and contain ZrO2 particles. The coatings were mostly characterized by pores less than 1 μm in size. However, as the voltage of the MAO process increases, the number of larger pores (5-10 μm in size) also increases. However, the porosity of the coatings varied insignificantly and amounted to 5 ± 1%. It has been revealed that the incorporation of ZrO2 particles substantially affects the properties of diatomite-based coatings. The adhesive strength of the coatings has increased by approximately 30%, and the corrosion resistance has increased by two orders of magnitude compared to the coatings without zirconia particles.
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Affiliation(s)
- Mariya B Sedelnikova
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Alexander D Kashin
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Pavel V Uvarkin
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Alexey I Tolmachev
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
| | - Yurii P Sharkeev
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Anna V Ugodchikova
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
- Laboratory of Plasma Synthesis of Materials, Troitsk Institute for Innovation & Fusion Research, Troitsk 108840, Russia
| | - Nikita A Luginin
- Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
- Research School of High-Energy Physics, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Olga V Bakina
- Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia
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Li C, Li G, Chen D, Gao K, Cao Y, Zhou Y, Mao Y, Fan S, Tang L, Jia H. The Effects of Diatomite as an Additive on the Macroscopic Properties and Microstructure of Concrete. Materials (Basel) 2023; 16:1833. [PMID: 36902948 PMCID: PMC10004572 DOI: 10.3390/ma16051833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Diatomite is a siliceous sedimentary rock containing amorphous silica, which can be used as a green mineral admixture to improve the properties of concrete. This study investigates the affecting mechanism of diatomite on concrete performance by macro and micro tests. The results indicate that diatomite can reduce the fluidity of concrete mixture and change its water absorption, compressive strength, resistance to chloride penetration (RCP), porosity, and microstructure. The low fluidity of concrete mixture containing diatomite can reduce workability. With increasing diatomite as partial replacement for cement in concrete, water absorption of concrete decreases before increasing, while compressive strength and RCP rise first and then drop. When diatomite is added to the cement at a content of 5% by weight, the concrete has the lowest water absorption and the highest compressive strength and RCP. Through the mercury intrusion porosimetry (MIP) test, we determined that the addition of 5% diatomite reduces the porosity of concrete from 12.68% to 10.82% and changes the proportion of pores with different sizes in concrete, the proportion of harmless and less harmful pores increases, and the proportion of harmful pores reduces. Based on the microstructure analysis, the SiO2 in diatomite can react with CH and produce C-S-H. C-S-H is responsible for developing concrete because it fills pores and cracks, forms a platy structure, and makes the concrete much denser, thereby improving its macroscopic performance and microstructure.
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Affiliation(s)
- Chunqing Li
- State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730030, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Da Xing’anling 165100, China
| | - Guoyu Li
- State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730030, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Da Xing’anling 165100, China
| | - Dun Chen
- State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730030, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Da Xing’anling 165100, China
| | - Kai Gao
- State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730030, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Da Xing’anling 165100, China
| | - Yapeng Cao
- State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730030, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Da Xing’anling 165100, China
| | - Yu Zhou
- State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730030, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Da Xing’anling Observation and Research Station of Frozen-Ground Engineering and Environment, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Da Xing’anling 165100, China
| | - Yuncheng Mao
- School of Civil Engineering, Northwest Minzu University, Lanzhou 730030, China
| | - Shanzhi Fan
- Gansu Provincial Transportation Research Institute Group Co., Ltd., Lanzhou 730050, China
| | - Liyun Tang
- Architecture and Civil Engineering School, Xi’an University of Science and Technology, Xi’an 710054, China
| | - Hailiang Jia
- Architecture and Civil Engineering School, Xi’an University of Science and Technology, Xi’an 710054, China
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Wang C, Li K, Sun Q, Zhu S, Zhang C, Zhang Y, Shi Z, Hu Y, Zhang Y. Diatomite-like KFeS 2 for Use in High-Performance Electrodes for Energy Storage and Oxygen Evolution. Nanomaterials (Basel) 2023; 13:643. [PMID: 36839011 PMCID: PMC9967514 DOI: 10.3390/nano13040643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/26/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Bifunctional materials possess remarkable properties that allow them to store and convert electrical energy easily. In this paper, diatomite-like potassium iron disulfide (KFeS2) was synthesized by a multistep sacrificial template method, and its morphological, electrochemical, and oxygen evolution reaction (OER) properties were investigated. KFeS2 was found to be porous, hollow, and cake-like, which suggests a high specific surface area (SSA) and abundant electrochemically active sites. A very high specific capacitance of 651 F g-1 at 1.0 A g-1 was also obtained due to the substance's unique structure and high porosity. Additionally, the diatomite-like KFeS2 possessed a very low overpotential ƞ10 of 254 mV at a current density of 10 mA cm-2 and a small Tafel slope of about 48.4 mV dec-1. Thus, the diatomite-like KFeS2 demonstrates broad application prospects for both energy storage and conversion.
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Affiliation(s)
- Can Wang
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Kailin Li
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Qing Sun
- Multi-Scale Porous Materials Center, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Shijin Zhu
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Chenzhi Zhang
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Yunhao Zhang
- School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Zhongyi Shi
- Undergraduate School, Chongqing University, Chongqing 400044, China
| | - Youzhong Hu
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Yuxin Zhang
- College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
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Dobrosielska M, Dobrucka R, Pajewska-Szmyt M, Kozera P, Gabriel E, Głowacka J, Brząkalski D, Kurzydłowski KJ, Przekop RE. Effect of Wax Additives and Silanization of Diatom Surfaces on Thermomechanical Properties of Polylactide Composites. Polymers (Basel) 2022; 14. [PMID: 36559878 DOI: 10.3390/polym14245511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
In the present study, tests were conducted on high-filled composite samples on a polylactide matrix, modified with diatomaceous earth, three types of silanes, and natural and synthetic wax. The obtained samples were characterized in terms of the effect of modifications on mechanical properties (tensile strength, flexural strength, and impact resistance) or processing properties, e.g., melt flow rate (MFR). The study showed that the modification had a favorable effect on the processing properties of the composites, associated with up to an eight-fold increase in flow rate index compared with the reference sample, especially for samples treated with methyltrimethoxysilane (MTMOS), and up to a ten-fold increase under low shear-rate flow conditions. The effect of the addition of waxes of different origins (synthetic and natural) was also determined, and it was shown that beeswax tended to reduce the flow rate of the composites regardless of the silane used. The addition of synthetic wax to composites increased the tendency to agglomerate diatomaceous earth, while natural wax had a positive effect on filler dispersion.
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18
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Zhao Y, Li B. Preparation and Superstrong Adsorption of a Novel La(Ⅲ)-Crosslinked Alginate/Modified Diatomite Macroparticle Composite for Anionic Dyes Removal from Aqueous Solutions. Gels 2022; 8:gels8120810. [PMID: 36547334 PMCID: PMC9778068 DOI: 10.3390/gels8120810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
In order to solve the problem of dye pollution of the water environment, a green macroparticle composite (CPAM-Dia/SA-La) as a bioadsorbent was prepared through a sodium alginate (SA) reaction with a polyacrylamide (CPAM)-modified diatomite (Dia) and further La(III) ion crosslinking polymerization, and characterized by various analytical methods. The important preparation and adsorption conditions of the composite were explored by the adsorption of Acid blue 113 (AB 113) and Congo red (CR) dyes. The dye adsorption efficiency was evaluated. The results show that CPAM-Dia/SA-La composite prepared under the optimized conditions displays superstrong adsorption capacities of 2907 and 1578 mg/g for AB 113 and CR and almost 100% removal efficiency within 60 min adsorption time at pH 2.0 and 298 K, and they decrease slightly with the pH increase to 10. The fitting of equilibrium data to the Langmuir model is the best and the adsorption kinetic processes can be expressed by the Pseudo-second-order kinetic model. The adsorption processes are both spontaneous and exothermic. The analysis results of FT-IR and XPS revealed that the superstrong adsorption of CPAM-Dia/SA-La for dyes. The composite adsorbed by the dye can be recycled. CPAM-Dia/SA-La is a promising biosorbent for dye wastewater treatment.
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Affiliation(s)
- Yuting Zhao
- Chemistry and Environment Science College, Inner Mongolia Normal University, Hohhot 010022, China
- Inner Mongolia Key Laboratory of Environmental Chemistry, Hohhot 010022, China
| | - Beigang Li
- Chemistry and Environment Science College, Inner Mongolia Normal University, Hohhot 010022, China
- Inner Mongolia Key Laboratory of Environmental Chemistry, Hohhot 010022, China
- Correspondence: or ; Tel.: +86-13644715566
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19
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Fang J, Wang Y, Wang K, Dai W, Yu Y, Li C. Experimental Study on the Mechanical Properties of Diatomite-Modified Coastal Cement Soil. Materials (Basel) 2022; 15:7857. [PMID: 36363446 PMCID: PMC9657556 DOI: 10.3390/ma15217857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/29/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Diatomite is a non-metallic mineral resource rich in SiO2, which can be used to modify coastal cement soil. In order to explore the mechanical modification effect of diatomite on coastal cement soil at the age of 7 days, based on coastal cement soil with cement content of 5% (mass fraction), diatomite of 0%, 5%, 10%, 15% and 20% (mass fraction) was mixed for modification. Through the unconfined compressive strength test, the triaxial unconsolidated undrained test, backscattered electron imaging (BSE), and energy-dispersive spectroscopy (EDS) technology, the influence of diatomite content and confining pressure on the peak strength of modified coastal cement soil was explored. The empirical formula between the peak strength of the DE specimen and the content of diatomite and confining pressure was established by curve fitting, and the fitting effect was ideal. When diatomite was mixed with coastal cement soil, the optimal dosage of diatomite was 5% from the perspective of mechanical properties and economic benefits of the maximum growth rate of compression and shear. The unconfined compressive strength test showed that the peak strength and elastic modulus of the modified coastal cement soil with 5% diatomite content were 37% and 57% higher than those of cement soil, respectively. The triaxial unconsolidated undrained test showed that the internal friction angle of the modified coastal cement soil was stable at about 30°, and cohesion of DE-5, DE-10, DE-15, and DE-20 increased by 28%, 48%, 78%, and 97%, respectively, compared to cement soil. The microscopic test found that the pore distribution of modified coastal cement soil is closely related to the strength change. The results show that the addition of diatomite can effectively improve the mechanical properties of soil-cement.
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Affiliation(s)
- Jiyuan Fang
- School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
- Shaoxing Key Laboratory of Interaction between Soft Soil Foundation and Building Structure, Shaoxing 312000, China
| | - Yunfeng Wang
- The Architecture Design & Research Institute of Zhejiang University Co., Ltd., Hangzhou 310027, China
| | - Kefa Wang
- School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
| | - Wenhao Dai
- School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
| | - Yanfei Yu
- School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
- Shaoxing Key Laboratory of Interaction between Soft Soil Foundation and Building Structure, Shaoxing 312000, China
| | - Cuihong Li
- School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
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Bai Z, Xu H, Yang B, Yao J, Li G, Guo K, Wang N, Liang N. Fe 3O 4/ Diatomite-Decorated Cotton Evaporator for Continuous Solar Steam Generation and Water Treatment. Materials (Basel) 2022; 15:6110. [PMID: 36079491 PMCID: PMC9457907 DOI: 10.3390/ma15176110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/26/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
Improving the evaporation rate of solar steam generation (SSG) has always been a research hotspot to solve the shortage of water resources. Using cotton, Fe3O4, polyvinyl alcohol (PVA) and diatomite (DM) as raw materials, DM/PVA/Fe3O4@cotton composites with both firmness and hydrophilicity were prepared. Fe3O4 has a wide range of light absorption characteristics and good photothermal conversion performance, and is an ideal photothermal conversion material. PVA enhances the adhesion between Fe3O4, cotton and DM and enhances the hardness of the sample and the internal porous structure. The existence of DM greatly improves the hydrophilicity of the sample, ensuring that the water in the lower layer can be continuously transported to the surface of the sample, and DM makes the surface of the sample rough, which reduces the reflection of sunlight and improves the efficiency of light heat conversion. Under one-sun irradiation, the temperature of the sample surface increases by 52.6 °C, the evaporation rate can reach 1.32 kg m-2 h-1 and the evaporation efficiency is 82.9%. Using this sample as the photothermal conversion layer of the SSG device, the removal rate of salt ions in seawater is more than 98% and the removal rate of heavy metal ions in sewage is close to 100%. This work provides a new idea and design method for SSG in the field of seawater desalination and sewage treatment.
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Affiliation(s)
- Zhi Bai
- School of Mechanical and Electronic Engineering, Suzhou University, Suzhou 234000, China
| | - Haifeng Xu
- School of Information Engineering, Suzhou University, Suzhou 234000, China
| | - Bo Yang
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China
| | - Jixin Yao
- Universities Joint Key Laboratory of Photoelectric Detection Science and Technology in Anhui Province, Hefei Normal University, Hefei 230601, China
- Anhui Province Key Laboratory of Simulation and Design for Electronic Information System, Hefei Normal University, Hefei 230601, China
| | - Guang Li
- Anhui Key Laboratory of Information Materials and Devices, Institute of Physical Science and Information Technology, School of Materials Science and Engineering, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institute of Physical Science and Information Technology, School of Materials Science and Engineering, Anhui University, Hefei 230601, China
| | - Kai Guo
- School of Mechanical and Electronic Engineering, Suzhou University, Suzhou 234000, China
- Anhui Provincial Engineering Laboratory on Information Fusion and Control of Intelligent Robot, Wuhu 241002, China
| | - Nan Wang
- School of Mechanical and Electronic Engineering, Suzhou University, Suzhou 234000, China
| | - Nannan Liang
- School of Information Engineering, Suzhou University, Suzhou 234000, China
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21
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Park JH, Yoon CB. Properties and Durability of Cement Mortar Using Calcium Stearate and Natural Pozzolan for Concrete Surface Treatment. Materials (Basel) 2022; 15:ma15165762. [PMID: 36013898 PMCID: PMC9416417 DOI: 10.3390/ma15165762] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/17/2022] [Accepted: 08/17/2022] [Indexed: 05/25/2023]
Abstract
Applying a concrete surface treatment method (epoxy or primer) can prevent water from penetrating concrete through surface pores. However, if the concrete surface is damaged, the subsequent reconstruction can be expensive and time-consuming. Concrete that is resistant to internal and external water has been extensively developed and used to supplement the surface treatment method. Herein, we prepared specimens by mixing cement mortar with fatty-acid-salt-based calcium stearate attached to two natural pozzolanic materials—diatomite and yellow clay. The physical tests measured (1) the air content, (2) flow test, (3) compressive strength, and (4) activity Factor. Durability experiments were performed on (1) the contact angle, (2) chloride ion diffusion coefficient, and (3) water absorption test. The results revealed that the compressive strength of concrete decreased as the calcium stearate content increased. Furthermore, it was confirmed that the contact angle of the test piece using the pozzolanic substance and calcium stearate was twice as high. It was confirmed that the sand test specimen had the highest water absorption rate, and the DT3% had the lowest. (Sand%: 11.8 > OPC: 6.5 > DT3%: 2.4), the chloride diffusion coefficient also showed similar results. (Sand%: 12.5 > OPC: 8.4 > DT1%: 8.8)Due to its unique insolubility, calcium stearate retards hydrate formation when mixed alone and negates compressive strength loss when combined with pozzolanic mixtures rich in SiO2 and Al2O3. Furthermore, the ideal method for producing water-resistant cement mortar is to evenly disperse calcium stearate in the porous powder of cement mortar.
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Affiliation(s)
- Jang-Hyun Park
- Korea Institute of Future Convergence Technology, Hankyong National University, Anseong 17579, Korea
| | - Chang-Bok Yoon
- Department of Architectural Engineering, Seoil University, Seoul 02192, Korea
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22
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Zhang C, Wang D, Dong L, Li K, Zhang Y, Yang P, Yi S, Dai X, Yin C, Du Z, Zhang X, Zhou Q, Yi Z, Rao J, Zhang Y. Microwave Absorption of α-Fe 2O 3@ diatomite Composites. Int J Mol Sci 2022; 23:9362. [PMID: 36012621 DOI: 10.3390/ijms23169362] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/06/2022] [Accepted: 08/10/2022] [Indexed: 11/17/2022] Open
Abstract
A neoteric round sieve diatomite (De) decorated with sea-urchin-like alpha-type iron trioxide (α-Fe2O3) synthetics was prepared by the hydrothermal method and further calcination. The results of the electromagnetic (EM) parameters of α-Fe2O3-decorated De (α-Fe2O3@D) showed that the minimum reflection loss (RLmin) of α-Fe2O3@D could reach -54.2 dB at 11.52 GHz and the matched absorber thickness was 3 mm. The frequency bandwidth corresponding to the microwave RL value below -20 dB was up to 8.24 GHz (9.76-18 GHz). This indicates that α-Fe2O3@D composite can be a lightweight and stable material; because of the low density of De (1.9-2.3 g/cm3), the density of α-Fe2O3@D composite material is lower than that of α-Fe2O3 (5.18 g/cm3). We found that the combination of the magnetic loss of sea-urchin-like α-Fe2O3 and the dielectric loss of De has the most dominant role in electromagnetic wave absorption and loss. We focused on comparing the absorbing properties before and after the formation of sea-urchin-like α-Fe2O3 and explain in detail the effects of the structure and crystal shape of this novel composite on the absorbing properties.
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23
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Yuan F, Li C, Zhang X, Yang R, Sun Z. Natural Diatomite Supported Zirconium-Doped TiO 2 with Tailoring Band Structure for Enhanced Visible-Light Photocatalytic Properties. Nanomaterials (Basel) 2022; 12:2827. [PMID: 36014695 PMCID: PMC9413476 DOI: 10.3390/nano12162827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
The development of economically applicable, highly efficient and low cost photocatalytic materials has always been a challenge. In this work, we report a zirconium doped TiO2/diatomite (ZrTD) composite with enhanced visible light-induced photocatalytic activity. The as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy, UV-VIS diffused reflectance spectroscopy, high-performance liquid chromatography-mass spectrometry, photoluminescence and X-ray photoelectron spectroscopy, respectively. The optimal doping ratio of zirconium into TiO2 was obtained at 3% (3%ZrTD composite), and the degradation rate constant of which tetracycline (TC) is up to around 8.65 times higher that of zirconium doped TiO2. In addition, zirconium doping introduces the impurity levels of Zr 3d and oxygen vacancies into the lattice of TiO2, resulting in broadening the light absorption range, reducing the band gap, and improving the separation efficiency of photogenerated electron-hole pairs, thus endowing with visible light photocatalytic properties. Moreover, both the photogenerated holes (h+) and superoxide (•O2-) radicals are responsible for the degradation process of TC, and a possible degradation pathway and the corresponding intermediate products of TC by ZrTD composite are also proposed in detail.
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Fajdek-Bieda A, Wróblewska A, Miądlicki P, Konstanciak A. Conversion of Geraniol into Useful Value-Added Products in the Presence of Catalysts of Natural Origin: Diatomite and Alum. Materials (Basel) 2022; 15:ma15072449. [PMID: 35407782 PMCID: PMC9000025 DOI: 10.3390/ma15072449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/18/2022] [Accepted: 03/24/2022] [Indexed: 01/25/2023]
Abstract
This article presents research related to the transformation of geraniol (GA), leading to the formation of products with very valuable properties. In the planned method, heterogeneous catalysts of natural origin in the form of alum and diatomite were used as catalysts. Initially, the process which we investigated was the process of isomerization of GA, but it turned out during the studies that GA is also transformed in other reactions. Before catalytic tests, these two minerals were subjected to detailed instrumental analyses using the following methods: XRD, SEM/EDX, XRF and FTIR, which allowed to obtain their full morphological characteristics. During the catalytic tests, the influence of such relevant parameters on the GA transformations was determined: temperature from 80 to 150 °C, catalyst content from 5 to 15% by weight and the reaction time from 15 min to 24 h. The tests presented in the article were carried out under atmospheric pressure (in air) as well as without the use of a solvent. The optimal conditions for the transformations of GA were determined on the basis of its conversion and selectivities of transformation to the main products in the form of: beta-pinene (BP), 6,11-dimethyl-2,6,10-dodecatriene-1-ol (DC) and thumbergol (TH). The above products were formed with the highest selectivity, respectively: 100 mol%, 50 mol% and 52 mol%. The results of the syntheses showed that for GA the best transformation results were obtained at the temperature of 80 °C (for both tested catalysts), with the catalyst content of 1 wt % (for both tested catalysts) and for the reaction time of 1 h (for diatomite)) and 3 h (for alum).
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Affiliation(s)
- Anna Fajdek-Bieda
- Technical Department, Jacob of Paradies University, Chopina 52, 66-400 Gorzow Wielkopolski, Poland;
| | - Agnieszka Wróblewska
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland;
- Correspondence: (A.W.); (A.K.)
| | - Piotr Miądlicki
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland;
| | - Anna Konstanciak
- Technical Department, Jacob of Paradies University, Chopina 52, 66-400 Gorzow Wielkopolski, Poland;
- Correspondence: (A.W.); (A.K.)
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25
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Cui KP, He YY, Xu KJ, Zhang Y, Chen CB, Xu ZJ, Chen X. Degradation of Tetracycline Hydrochloride by Cu-Doped MIL-101(Fe) Loaded Diatomite Heterogeneous Fenton Catalyst. Nanomaterials (Basel) 2022; 12:nano12050811. [PMID: 35269298 PMCID: PMC8912278 DOI: 10.3390/nano12050811] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 01/19/2023]
Abstract
In this work, the combination of high surface area diatomite with Fe and Cu bimetallic MOF material catalysts (Fe0.25Cu0.75(BDC)@DE) were synthesized by traditional solvothermal method, and exhibited efficient degradation performance to tetracycline hydrochloride (TC). The degradation results showed: Within 120 min, about 93% of TC was degraded under the optimal conditions. From the physical–chemical characterization, it can be seen that Fe and Cu play crucial roles in the reduction of Fe3+ because of their synergistic effect. The synergistic effect can not only increase the generation of hydroxyl radicals (•OH), but also improve the degradation efficiency of TC. The Lewis acid property of Cu achieved the pH range of reaction system has been expanded, and it made the material degrade well under both neutral and acidic conditions. Loading into diatomite can reduce agglomeration and metal ion leaching, thus the novel catalysts exhibited low metal ion leaching. This catalyst has good structural stability, and less loss of performance after five reaction cycles, and the degradation efficiency of the material still reached 81.8%. High performance liquid chromatography–mass spectrometry was used to analyze the degradation intermediates of TC, it provided a deep insight of the mechanism and degradation pathway of TC by bimetallic MOFs. This allows us to gain a deeper understanding of the catalytic mechanism and degradation pathway of TC degradation by bimetallic MOFS catalysts. This work has not only achieved important progress in developing high-performance catalysts for TC degradation, but has also provided useful information for the development of MOF-based catalysts for rapid environmental remediation.
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Affiliation(s)
- Kang-Ping Cui
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (Y.-Y.H.); (K.-J.X.)
- Correspondence: (K.-P.C.); (X.C.)
| | - Yu-Ying He
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (Y.-Y.H.); (K.-J.X.)
| | - Kai-Jie Xu
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (Y.-Y.H.); (K.-J.X.)
| | - Yu Zhang
- Key Lab of Aerospace Structural Parts Forming Technology and Equipment of Anhui Province, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei 230009, China;
| | - Chang-Bin Chen
- Anqing Shuguang Chemical Co., Ltd., Anqing 246003, China; (C.-B.C.); (Z.-J.X.)
| | - Zheng-Jiang Xu
- Anqing Shuguang Chemical Co., Ltd., Anqing 246003, China; (C.-B.C.); (Z.-J.X.)
| | - Xing Chen
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; (Y.-Y.H.); (K.-J.X.)
- Key Lab of Aerospace Structural Parts Forming Technology and Equipment of Anhui Province, Institute of Industry and Equipment Technology, Hefei University of Technology, Hefei 230009, China;
- Correspondence: (K.-P.C.); (X.C.)
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26
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Kapeluszna E, Szudek W, Wolka P, Zieliński A. Implementation of Alternative Mineral Additives in Low-Emission Sustainable Cement Composites. Materials (Basel) 2021; 14:ma14216423. [PMID: 34771947 PMCID: PMC8585175 DOI: 10.3390/ma14216423] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/18/2021] [Accepted: 10/24/2021] [Indexed: 11/16/2022]
Abstract
The influence of four naturally occurring mineral additives (zeolite, diatomite, trass and bentonite) on the hydration and properties of cement pastes and mortars was investigated. The materials change the phase composition, heat of hydration (determined by calorimetry) and mechanical properties of composites. After 28 days, the amount of Ca(OH)2 was reduced by up to 23% and up to 35% more C-S-H was formed, as proved by TG measurements. Differences were observed in the kinetics of heat release, especially for 25% of the addition. In the calorimetric curves, an additional exothermic effect is observed, related to the alteration in the hydration of C3A in cement. From the point of view of beneficial influence on mechanical properties of mortars, the additives could be ranked as follows: bentonite < diatomite, zeolite < trass after 2 days and bentonite < diatomite < trass < zeolite after 28 days of curing. The highest compressive strength (58.5 MPa) was observed for the sample with a 10% addition of zeolite. Zeolite, trass, bentonite and diatomite are all pozzolanic materials; however, their activity varies to an extent due to the differences in their specific surface area and the content of the amorphous phase, responsible for the pozzolanic reaction.
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Affiliation(s)
- Ewa Kapeluszna
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30-059 Kraków, Poland;
- Correspondence:
| | - Wojciech Szudek
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30-059 Kraków, Poland;
| | - Paweł Wolka
- Astra Technologia Betonu Sp. z.o.o, 83-010 Straszyn, Poland;
| | - Adam Zieliński
- Faculty of Civil and Environmental Engineering, West Pomeranian University of Technology in Szczecin, 70-310 Szczecin, Poland;
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27
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Tramontano C, Miranda B, Chianese G, De Stefano L, Forestiere C, Pirozzi M, Rea I. Design of Gelatin-Capped Plasmonic- Diatomite Nanoparticles with Enhanced Galunisertib Loading Capacity for Drug Delivery Applications. Int J Mol Sci 2021; 22:10755. [PMID: 34639096 PMCID: PMC8509241 DOI: 10.3390/ijms221910755] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/27/2021] [Accepted: 10/02/2021] [Indexed: 02/06/2023] Open
Abstract
Inorganic diatomite nanoparticles (DNPs) have gained increasing interest as drug delivery systems due to their porous structure, long half-life, thermal and chemical stability. Gold nanoparticles (AuNPs) provide DNPs with intriguing optical features that can be engineered and optimized for sensing and drug delivery applications. In this work, we combine DNPs with gelatin stabilized AuNPs for the development of an optical platform for Galunisertib delivery. To improve the DNP loading capacity, the hybrid platform is capped with gelatin shells of increasing thicknesses. Here, for the first time, full optical modeling of the hybrid system is proposed to monitor both the gelatin generation, degradation, and consequent Galunisertib release by simple spectroscopic measurements. Indeed, the shell thickness is optically estimated as a function of the polymer concentration by exploiting the localized surface plasmon resonance shifts of AuNPs. We simultaneously prove the enhancement of the drug loading capacity of DNPs and that the theoretical modeling represents an efficient predictive tool to design polymer-coated nanocarriers.
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Affiliation(s)
- Chiara Tramontano
- Institute of Applied Sciences and Intelligent Systems—Unit of Naples, National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (C.T.); (B.M.); (G.C.); (I.R.)
- Department of Pharmacy, Università Degli Studi di Napoli Federico II, Via Domenico Montesano 49, 80131 Naples, Italy
| | - Bruno Miranda
- Institute of Applied Sciences and Intelligent Systems—Unit of Naples, National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (C.T.); (B.M.); (G.C.); (I.R.)
- Department of Electrical Engineering and Information Technology, Università Degli Studi di Napoli Federico II, Via Claudio 21, 80125 Naples, Italy;
| | - Giovanna Chianese
- Institute of Applied Sciences and Intelligent Systems—Unit of Naples, National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (C.T.); (B.M.); (G.C.); (I.R.)
| | - Luca De Stefano
- Institute of Applied Sciences and Intelligent Systems—Unit of Naples, National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (C.T.); (B.M.); (G.C.); (I.R.)
| | - Carlo Forestiere
- Department of Electrical Engineering and Information Technology, Università Degli Studi di Napoli Federico II, Via Claudio 21, 80125 Naples, Italy;
| | - Marinella Pirozzi
- IEOS (Istituto per l’Endocrinologia e l’Oncologia Sperimentale) “G. Salvatore” Seconda Unità—CNR, Via Pietro Castellino 111, 80131 Naples, Italy;
| | - Ilaria Rea
- Institute of Applied Sciences and Intelligent Systems—Unit of Naples, National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (C.T.); (B.M.); (G.C.); (I.R.)
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28
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Zhou Y, Xi W, Xie Z, You Z, Jiang X, Han B, Lang R, Wu C. High-Loading Pt Single-Atom Catalyst on CeO 2 -Modified Diatomite Support. Chem Asian J 2021; 16:2622-2625. [PMID: 34403212 DOI: 10.1002/asia.202100730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/27/2021] [Indexed: 11/09/2022]
Abstract
Single-atom catalysis has become a new branch in heterogeneous catalysis. Although the naturally produced SiO2 -based materials are abundant and stable, fabrication of single-atom catalysts on such supports with high loading remains as a formidable challenge due to the lack of bonding sites to anchor the isolated metal species. Herein, modifying the diatomite, a kind of pure SiO2 mineral, with CeO2 nanoparticles is demonstrated to increase the defect sites on the support. The enhanced metal-support interaction maintains the atomic dispersion of Pt species with above 1 wt.% loading, exhibiting good performance in the selective hydrogenation of phenylacetylene to styrene.
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Affiliation(s)
- Yang Zhou
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Wei Xi
- Center for Electron Microscopy and Tianjin Key Lab of Advanced Functional Porous Materials, Institute for New Energy Materials, School of Materials, Tianjin University of Technology, Tianjin, 300384, P. R. China
| | - Zixin Xie
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Zhixin You
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Xunzhu Jiang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R.China
| | - Bing Han
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R.China
| | - Rui Lang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Chuande Wu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China.,State Key Laboratory of Silicon Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
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29
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Du L, Xu S, Wu H, Zhao T, Wang X, Wang M. Facile Fabrication of Diatomite-Supported ZIF-8 Composite for Solid-Phase Extraction of Benzodiazepines in Urine Samples Prior to High-Performance Liquid Chromatography. Molecules 2021; 26:5209. [PMID: 34500641 DOI: 10.3390/molecules26175209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/20/2021] [Accepted: 08/24/2021] [Indexed: 11/17/2022] Open
Abstract
A novel diatomite-supported zeolitic imidazolate framework-8 sorbent (ZIF-8@Dt-COOH) was in situ fabricated and developed for solid-phase extraction of three benzodiazepines (triazolam, midazolam and diazepam) in urine followed by high-performance liquid chromatography. ZIF-8@Dt-COOH was easily prepared by coating ZIF-8 on the surface of Dt-COOH and characterized by Fourier transform infrared spectra, X-ray powder diffractometry and scanning electron microscopy. Compared with bare Dt-COOH, the extraction efficiency of ZIF-8@Dt-COOH for the target was significantly increased from 20.1–39.0% to 100%. Main extraction parameters, including ionic strength and pH of solution, loading volume, washing solution, elution solvent and elution volume, were optimized in detail. Under optimum conditions, the developed method gave linearity of three BZDs in 2–500 ng/mL (r ≥ 0.9995). Limits of detection (S/N = 3), and limits of quantification (S/N = 10) were 0.3–0.4 ng/mL and 1.0–1.3 ng/mL, respectively. In addition, the average recoveries at three spiked levels (5, 10 and 20 ng/mL) varied from 80.0% to 98.7%, with the intra-day and inter-day precisions of 1.4–5.2% and 1.5–8.2%, respectively. The proposed method provided an effective purification performance and gave the enrichment factors of 24.0–29.6. The proposed method was successfully employed for the accurate and sensitive determination of benzodiazepines in urine.
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30
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Dobrosielska M, Dobrucka R, Brząkalski D, Gloc M, Rębiś J, Głowacka J, Kurzydłowski KJ, Przekop RE. Methodological Aspects of Obtaining and Characterizing Composites Based on Biogenic Diatomaceous Silica and Epoxy Resins. Materials (Basel) 2021; 14:ma14164607. [PMID: 34443130 PMCID: PMC8400890 DOI: 10.3390/ma14164607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/02/2021] [Accepted: 08/11/2021] [Indexed: 02/06/2023]
Abstract
Diatomaceous earth are sediments of unicellular algal skeletons with a well-defined hierarchical structure. Despite many tests conducted on systems using diatomaceous earth and epoxy resins, we can find many differences in the methods of acquisition and characteristics of the composite, which may considerably affect the results. In our study, we have conducted tests to verify the impact of the method of obtaining samples and the degassing of the composite on its mechanical properties and standard deviation. The samples were cast in glass moulds and silicone moulds and then subjected to testing for their mechanical and functional properties, imaging with the use of an optical microscope and a scanning electron microscope. The tests have shown that, for samples cast in glass moulds, there is no heterogeneity within the area of the tested sample, as in the case of samples cast in silicone moulds. Silicone moulds allow for quite effective self-degassing of the resin due to the large area-to-mass ratio, and the small remaining air vesicles have a limited effect on the mechanical properties of the samples. The filler used also played a significant role. For systems containing base and rinsed diatomite, it is clear that the degassing of mixtures increases the tensile strength. For treated diatomite, the elongation at break grew along with increasing filler concentration, while for base diatomite, the improvement was observed for flexural strength and impact strength. A non-modified epoxy resin shows a tensile strength at 19.91 MPa (silicone mould cast). At the same time, the degassed, glass mould-cast systems containing 12% of base and rinsed diatoms showed a tensile strength of 27.4 MPa and 44.7 MPa, respectively. We have also observed that the higher the filler concentration, the higher were the tensile strength values, which for the rinsed diatoms reached over 55.1 MPa and for the base diatoms were maximum of 43.8 MPa. The tests, therefore, constitute a set of guidelines and recommendations for testing with the use of fillers showing an extended inner structure.
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Affiliation(s)
- Marta Dobrosielska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (J.R.); (K.J.K.)
| | - Renata Dobrucka
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (J.R.); (K.J.K.)
- Department of Non-Food Products Quality and Packaging Development, Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61-875 Poznań, Poland
- Correspondence: (R.D.); (R.E.P.)
| | - Dariusz Brząkalski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 8 Uniwersytetu Poznańskiego, 61−614 Poznań, Poland;
| | - Michał Gloc
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (J.R.); (K.J.K.)
| | - Janusz Rębiś
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (J.R.); (K.J.K.)
| | - Julia Głowacka
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 10, 61-614 Poznan, Poland;
| | - Krzysztof J. Kurzydłowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (J.R.); (K.J.K.)
- Faculty of Mechanical Engineering, Bialystok University of Technology, Wiejska 45c, 15-351 Bialystok, Poland
| | - Robert E. Przekop
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 10, 61-614 Poznan, Poland;
- Correspondence: (R.D.); (R.E.P.)
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Pavlíková M, Záleská M, Pivák A, Jankovský O, Lauermannová AM, Lojka M, Antončík F, Pavlík Z. MOC- Diatomite Composites Filled with Multi-Walled Carbon Nanotubes. Materials (Basel) 2021; 14:4576. [PMID: 34443099 DOI: 10.3390/ma14164576] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/02/2021] [Accepted: 08/13/2021] [Indexed: 11/16/2022]
Abstract
The studies focusing on magnesium oxychloride cement (MOC) composites have recently become fairly widespread because of MOC’s excellent mechanical properties and environmental sustainability. Numerous fillers, admixtures and nano-dopants were studied in order to improve the overall performance of MOC-based derivatives. Some of them exhibited specific flaws, such as a tendency to aggregate, increase in porosity, aeration of the composite matrix, depreciation in water resistance and mechanical strength, etc. In this manuscript, MOC-based composites doped by multi-walled carbon nanotubes (MWCNTs) are designed and tested. In order to modify the final properties of composites, diatomite was admixed as partial substitution of MgO, which was used in the composition of the researched material in excess, i.e., the majority of MgO constituted part of MOC and the rest served as fine filler. The composites were subjected to the broad experimental campaign that covered SEM (scanning electron microscopy), EDS (energy dispersive spectroscopy), HR-TEM (high-resolution transmission electron microscopy), XRD (X-ray diffraction), OM (optical microscopy) and STA-MS (simultaneous thermal analysis with mass spectroscopy). For 28 days hardened samples, macrostructural and microstructural parameters, mechanical properties, hygric and thermal characteristics were experimentally assessed. The incorporation of MWCNTs and diatomite resulted in the significant enhancement of composites’ compactness, mechanical strength and stiffness and reduction in water absorption and rate of water imbibition. The thermal properties of the enriched MOC composites yielded interesting values and provided information for future modification of thermal performance of MOC composites with respect to their specific use in practice, e.g., in passive moderation of indoor climate. The combination of MWCNTs and diatomite represents a valuable modification of the MOC matrix and can be further exploited in the design and development of advanced building materials and components.
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Piri M, Sepehr E, Samadi A, Farhadi K, Alizadeh M. Application of diatomite for sorption of Pb, Cu, Cd and Zn from aqueous solutions: kinetic, thermodynamic studies and application of response surface methodology (RSM). Water Environ Res 2021; 93:714-726. [PMID: 32562331 DOI: 10.1002/wer.1377] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/06/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Contamination of water and soil with toxic metals is a serious environmental issue. To study the Pb, Cu, Cd, and Zn sorption behavior by diatomite, batch experiments were carried out with increasing levels of initial concentration (0-200 mg/L) under different contact times (0-360 min) and temperatures (283, 293, 303, and 313 K). The effects of concentration (0-200 mg/L), pH (3-6), and ionic strength (0.01-0.06 mol/L) on the sorption were modeled using response surface methodology (RSM). Results showed that adsorption data were well-fitted by the Langmuir equation. The sorption of metals intensified by increasing initial concentration and pH but ionic strength had inverse effect. High value for R2 (0.99) and adjusted R2 (0.99) showed that the removal of ions can be described by response surface method. One-way ANOVA showed (p-value < 0.0001) that quadratic model is the best model for determining the interaction of variables. The values of the sorption energy parameter from Dubinin-Radushkevich model (E < 8 kJ K-1 mol-1 ) and negative values of ∆G showed that the sorption of the metals was physical and spontaneous. The positive values of enthalpy (ΔH) indicated that the sorption reaction of metals was endothermic at 283-313 K. PRACTITIONER POINTS: Applications of diatomite increased the sorption of Pb, Cd, Zn, and Cu from aqueous solutions. Diatomite, as low-cost adsorbent, had significant potential to sorption of ions. The sorption of heavy metals by adsorbent intensified by increasing initial concentration and pH but ionic strength had inverse effect. High value for R2 (0.99) and adj-R2 (0.99) showed that removal of metals can be described by response surface method (RSM) and the initial concentration of metal was the most significant factor.
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Affiliation(s)
- Marziyeh Piri
- Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Ebrahim Sepehr
- Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Abbas Samadi
- Department of Soil Science, Faculty of Agriculture, Urmia University, Urmia, Iran
| | - Khalil Farhadi
- Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran
| | - Mohammad Alizadeh
- Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran
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Dobrosielska M, Dobrucka R, Gloc M, Brząkalski D, Szymański M, Kurzydłowski KJ, Przekop RE. A New Method of Diatomaceous Earth Fractionation-A Bio-Raw Material Source for Epoxy-Based Composites. Materials (Basel) 2021; 14:1663. [PMID: 33800695 PMCID: PMC8037462 DOI: 10.3390/ma14071663] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 11/16/2022]
Abstract
The authors of this paper use an original method of diatomaceous earth fractionation, which allows for obtaining a filler with a specific particle size distribution. The method makes it possible to separate small, disintegrated and broken diatom frustules from those which maintained their original form in diatomaceous earth. The study covers a range of tests conducted to prove that such a separated diatomic fraction (3-30 µm) shows features different from the base diatomite (from 1 to above 40 µm) used as an epoxy resin filler. We have examined the mechanical properties of a series of diatomite/resin composites, considering the weight fraction of diatoms and the parameters of the composite production process. The studied composites of Epidian 601 epoxy resin cross-linked with amine-based curing agent Z-1 contained 0 to 70% vol. of diatoms or diatomaceous earth. Samples were produced by being casted into silicone molds in vacuum degassing conditions and, alternatively, without degassing. The results have shown that the size and morphology of the filler based on diatomaceous earth affects mechanical and rheological properties of systems based on epoxy resin. Elongation at rupture and flexural stress at rupture were both raised by up to 35%, and impact strength by up to 25%.
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Affiliation(s)
- Marta Dobrosielska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (K.J.K.)
| | - Renata Dobrucka
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (K.J.K.)
- Department of Non-Food Products Quality and Packaging Development, Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61-875 Poznań, Poland
| | - Michał Gloc
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (K.J.K.)
| | - Dariusz Brząkalski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, 8 Uniwersytetu Poznańskiego, 61-614 Poznań, Poland;
| | - Marcin Szymański
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 10, 61-614 Poznan, Poland;
| | - Krzysztof J. Kurzydłowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Wołoska 141, 02-507 Warsaw, Poland; (M.D.); (M.G.); (K.J.K.)
| | - Robert E. Przekop
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 10, 61-614 Poznan, Poland;
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Liu X, Zhang N, Gu X, Qin Y, Song D, Zhang L, Ma S. Total Synthesis of Semaglutide Based on a Soluble Hydrophobic-Support-Assisted Liquid-Phase Synthetic Method. ACS Comb Sci 2020; 22:821-825. [PMID: 33058727 DOI: 10.1021/acscombsci.0c00134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Considering the high cost of the production of semaglutide, which is currently the most promising antidiabetic drug especially for the treatment of type 2 diabetes mellitus, a new synthetic route of semaglutide production that possesses excellent yield and high purity is of vital importance. Herein, we reported a newly developed synthetic route of semaglutide that is simple and efficient, based on a soluble hydrophobic-support-assisted liquid-phase synthetic method by applying Alloc-chemistry to the synthesis of the main chain peptide and side chain peptide of semaglutide. With careful optimization of the reaction conditions and innovative strategy of post-synthetic treatments, the total yield and purity of the crude semaglutide was improved satisfactorily.
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Affiliation(s)
- Xingbang Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Na Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Xiaotong Gu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Yinhui Qin
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Di Song
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Long Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Shutao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 West Wenhua Road, Jinan 250012, China
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Lauermannová AM, Antončík F, Lojka M, Jankovský O, Pavlíková M, Pivák A, Záleská M, Pavlík Z. The Impact of Graphene and Diatomite Admixtures on the Performance and Properties of High-Performance Magnesium Oxychloride Cement Composites. Materials (Basel) 2020; 13:ma13245708. [PMID: 33327587 PMCID: PMC7765065 DOI: 10.3390/ma13245708] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/10/2020] [Accepted: 12/13/2020] [Indexed: 11/16/2022]
Abstract
A high-performance magnesium oxychloride cement (MOC) composite composed of silica sand, diatomite powder, and doped with graphene nanoplatelets was prepared and characterized. Diatomite was used as a 10 vol.% replacement for silica sand. The dosage of graphene was 0.5 wt.% of the sum of the MgO and MgCl2·6H2O masses. The broad product characterization included high-resolution transmission electron microscopy, X-ray diffraction, X-ray fluorescence, scanning electron microscopy and energy dispersive spectroscopy analyses. The macrostructural parameters, pore size distribution, mechanical resistance, stiffness, hygric and thermal parameters of the composites matured for 28-days were also the subject of investigation. The combination of diatomite and graphene nanoplatelets greatly reduced the porosity and average pore size in comparison with the reference material composed of MOC and silica sand. In the developed composites, well stable and mechanically resistant phase 5 was the only precipitated compound. Therefore, the developed composite shows high compactness, strength, and low water imbibition which ensure high application potential of this novel type of material in the construction industry.
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Affiliation(s)
- Anna-Marie Lauermannová
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic; (A.-M.L.); (F.A.); (M.L.); (O.J.)
| | - Filip Antončík
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic; (A.-M.L.); (F.A.); (M.L.); (O.J.)
| | - Michal Lojka
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic; (A.-M.L.); (F.A.); (M.L.); (O.J.)
| | - Ondřej Jankovský
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic; (A.-M.L.); (F.A.); (M.L.); (O.J.)
| | - Milena Pavlíková
- Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague, Czech Republic; (M.P.); (A.P.); (M.Z.)
| | - Adam Pivák
- Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague, Czech Republic; (M.P.); (A.P.); (M.Z.)
| | - Martina Záleská
- Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague, Czech Republic; (M.P.); (A.P.); (M.Z.)
| | - Zbyšek Pavlík
- Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague, Czech Republic; (M.P.); (A.P.); (M.Z.)
- Correspondence: ; Tel.: +420-224-354-371
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Lv C, Shi J, Tang Q, Hu Q. Tetracycline Removal by Activating Persulfate with Diatomite Loading of Fe and Ce. Molecules 2020; 25:E5531. [PMID: 33255809 DOI: 10.3390/molecules25235531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/15/2020] [Accepted: 11/24/2020] [Indexed: 02/07/2023] Open
Abstract
Persulfate (PS)-based oxidation technology is efficient in removing refractory organics from water. A novel diatomite (DIA) support Fe and Ce composite (Fe-Ce/DIA) was prepared for activating persulfate to degrade tetracycline in water. The Fe and Ce were uniformly loaded on DIA, and the total pore size of Fe-Ce/DIA was 6.99 × 10−2 cm3/g, and the average pore size was 12.06 nm. Fe-Ce/DIA presented a good catalytic activity and 80% tetracycline was removed under the persulfate system. The Fe-Ce/DIA also had photocatalytic activity, and the corresponding tetracycline removal efficiency was 86% under UV irradiation. Fe-Ce/DIA exhibited less iron dissolution rate compared with Fe-DIA. The tetracycline degradation rate was enhanced when the temperature increased. The optimal tetracycline removal efficiency was obtained when the conditions were of persulfate 10 mM, Fe-Ce/DIA dosage 0.02 g/L, and tetracycline concentration 50 mg/L. In addition, Fe-Ce/DIA showed a wide pH application and good reusability and stability.
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Yu X, Li L, Zhao Y, Wang X, Wang Y, Shen W, Zhang X, Zhang Y, Tang J, Inganäs O. Organic Eu3+-complex-anchored porous diatomite channels enable UV protection and down conversion in hybrid material. Sci Technol Adv Mater 2020; 21:726-736. [PMID: 33177954 PMCID: PMC7594857 DOI: 10.1080/14686996.2020.1799693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/20/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
The organic Eu3+-complex [Eu(TTA)3Phen] has been incorporated into the channels of surface-modified frustules from diatoms as a key material to absorb and convert UV-photons to visible luminescence. Systematic investigation results indicate that the organic Eu3+-complex encapsulated in the functionalized diatomite channels exhibits enhanced luminescence and longer lifetime, owning to the Eu(TTA)3Phen complex interacting with its surrounding silylating agents. The organic Eu3+-complex-anchored porous diatomite hybrid luminescent material was compounded with polyethylene terephthalate (PET) by using a mini-twin screw extruder to prepare a self-supporting film of the hybrid material. Besides, the UV absorption properties of the composite films were investigated. These films will potentially be related to the UV protection of photovoltaic devices.
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Affiliation(s)
- Xiaoshuang Yu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Lili Li
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Yue Zhao
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Xinzhi Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Wenfei Shen
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Xiaolin Zhang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Yanying Zhang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, Qingdao University, Qingdao, P. R. China
| | - Olle Inganäs
- Biomolecular and Organic Electronics, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
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Wang G, Graham E, Zheng S, Zhu J, Zhu R, He H, Sun Z, Mackinnon IDR, Xi Y. Diatomite-Metal-Organic Framework Composite with Hierarchical Pore Structures for Adsorption/Desorption of Hydrogen, Carbon Dioxide and Water Vapor. Materials (Basel) 2020; 13:ma13214700. [PMID: 33105589 PMCID: PMC7659967 DOI: 10.3390/ma13214700] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 12/20/2022]
Abstract
Distinctive Cr-MOF@Da composites have been constructed using chromium-based metal-organic frameworks (MOFs) and diatomite (Da). The new materials have hierarchical pore structures containing micropores, mesopores and macropores. We have synthesized various morphologies of the MOF compound Cr-MIL-101 to combine with Da in a one-pot reaction step. These distinctive hierarchical pore networks within Cr-MIL-101@Da enable exceptional adsorptive performance for a range of molecules, including hydrogen (H2), carbon dioxide (CO2) and water (H2O) vapor. Selectivity for H2 or CO2 can be moderated by the morphology and composition of the Cr-MIL-101 included in the Cr-MOF@Da composite. The encapsulation and growth of Cr-MIL-101 within and on Da have resulted in excellent water retention as well as high thermal and hydrolytic stability. In some cases, Cr-MIL-101@Da composite materials have demonstrated increased thermal stability compared with that of Cr-MIL-101; for example, decomposition temperatures >340 ℃ can be achieved. Furthermore, these Cr-MIL-101@Da composites retain structural and morphological integrity after 60 cycles of repeated hydration/dehydration, and after storage for more than one year. These characteristics are difficult to achieve with many MOF materials, and thus suggest that MOF–mineral composites show high potential for practical gas storage and water vapor capture.
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Affiliation(s)
- Gaofeng Wang
- Institute for Future Environments and Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia; (G.W.); (I.D.R.M.)
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Material Research and Development, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; (E.G.); (J.Z.); (R.Z.); (H.H.)
| | - Elizabeth Graham
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Material Research and Development, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; (E.G.); (J.Z.); (R.Z.); (H.H.)
| | - Shuilin Zheng
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China; (S.Z.); (Z.S.)
| | - Jianxi Zhu
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Material Research and Development, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; (E.G.); (J.Z.); (R.Z.); (H.H.)
| | - Runliang Zhu
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Material Research and Development, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; (E.G.); (J.Z.); (R.Z.); (H.H.)
| | - Hongping He
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Material Research and Development, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; (E.G.); (J.Z.); (R.Z.); (H.H.)
| | - Zhiming Sun
- School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China; (S.Z.); (Z.S.)
| | - Ian D. R. Mackinnon
- Institute for Future Environments and Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia; (G.W.); (I.D.R.M.)
| | - Yunfei Xi
- Institute for Future Environments and Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland 4001, Australia; (G.W.); (I.D.R.M.)
- Correspondence: ; Tel.: +61-07-3138-1995
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Galzerano B, Cabello CI, Muñoz M, Buonocore GG, Aprea P, Liguori B, Verdolotti L. Fabrication of Green Diatomite/Chitosan-Based Hybrid Foams with Dye Sorption Capacity. Materials (Basel) 2020; 13:E3760. [PMID: 32854397 PMCID: PMC7503364 DOI: 10.3390/ma13173760] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/22/2020] [Accepted: 08/23/2020] [Indexed: 11/16/2022]
Abstract
The latest tendency of the scientific community regards the development of different classes of green materials able to solve pollution problems caused by industrial and human activity. In this paper, chitosan and diatomite were used to produce a broad-spectrum hybrid adsorbent, either in powder or in monolithic form for environmental pollutant removal. Diatomite-chitosan-based powders and porous diatomite-chitosan hybrids were prepared and characterized by chemical-physical, thermal and morphological analysis. Moreover, their adsorbent capacity towards anionic dye (Indigo Carmine) was also evaluated. Obtained data showed that chitosan improves the adsorption capacity of both systems, increasing the uptake of dye in both diatomite-chitosan systems.
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Affiliation(s)
- Barbara Galzerano
- Institute of Polymers, Composite and Biomaterials, National Research Council, P.le Enrico Fermi, Portici, 80055 Naples, Italy; (B.G.); (G.G.B.); (L.V.)
- ACLabs—Applied Chemistry Labs, Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy;
| | - Carmen I. Cabello
- “Centro de Investigacion y Desarollo en Ciencias Aplicadas Dr. J. J. Ronco” (CINDECA-CONICET-CIC-UNLP), Calle 47 N 257, 1900 La Plata, Argentine; (C.I.C.); (M.M.)
| | - Mercedes Muñoz
- “Centro de Investigacion y Desarollo en Ciencias Aplicadas Dr. J. J. Ronco” (CINDECA-CONICET-CIC-UNLP), Calle 47 N 257, 1900 La Plata, Argentine; (C.I.C.); (M.M.)
| | - Giovanna G. Buonocore
- Institute of Polymers, Composite and Biomaterials, National Research Council, P.le Enrico Fermi, Portici, 80055 Naples, Italy; (B.G.); (G.G.B.); (L.V.)
| | - Paolo Aprea
- ACLabs—Applied Chemistry Labs, Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy;
| | - Barbara Liguori
- Institute of Polymers, Composite and Biomaterials, National Research Council, P.le Enrico Fermi, Portici, 80055 Naples, Italy; (B.G.); (G.G.B.); (L.V.)
- ACLabs—Applied Chemistry Labs, Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy;
| | - Letizia Verdolotti
- Institute of Polymers, Composite and Biomaterials, National Research Council, P.le Enrico Fermi, Portici, 80055 Naples, Italy; (B.G.); (G.G.B.); (L.V.)
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Kubasheva Z, Sprynskyy M, Railean-Plugaru V, Pomastowski P, Ospanova A, Buszewski B. Synthesis and Antibacterial Activity of (AgCl, Ag)NPs/ Diatomite Hybrid Composite. Materials (Basel) 2020; 13:E3409. [PMID: 32748873 PMCID: PMC7435914 DOI: 10.3390/ma13153409] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/26/2020] [Accepted: 07/30/2020] [Indexed: 11/17/2022]
Abstract
. In the present research, hybrid (AgCl, Ag)NPs/diatomite composites were synthesized by direct impregnation with aqueous silver nitrate solutions. The silver chloride nanoparticles (AgCl-NPs) were formed as an effect of the exchange reaction when silver interacted with the diatomite mineral impurity halite. Nanoparticles of metallic silver (AgNPs) were created by the reduction of silver ions under the influence of hydrogen peroxide. The content of silver chloride nanoparticles in the (AgCl, Ag)NPs/diatomite composite was limited by the content of the halite in the used diatomite. Samples of natural diatomite and synthesized (AgCl, Ag)NPs/diatomite composites were examined by using scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction, infrared spectroscopy and thermogravimetric analysis. Moreover, the antibacterial potential of synthesized composites was also studied using the MIC (minimal inhibitory concentration) method against the most common drug-resistant microorganisms in the medical field: Gram-positive Staphylococcus aureus and Gram-negative Klebsiella pneumoniae. The obtained hybrid (AgCl, AgNPs)/diatomite composites were shown to have antimicrobial potential. However, widespread use requires further study by using various microorganisms and additional cytotoxic studies on eukaryotic systems, e.g., cell lines and animal models.
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Affiliation(s)
- Zhanar Kubasheva
- Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan; (Z.K.); (A.O.)
| | - Myroslav Sprynskyy
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland;
| | - Viorica Railean-Plugaru
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (V.R.-P.); (P.P.)
| | - Paweł Pomastowski
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (V.R.-P.); (P.P.)
| | - Aliya Ospanova
- Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan; (Z.K.); (A.O.)
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland;
- Interdisciplinary Center for Modern Technologies, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (V.R.-P.); (P.P.)
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Michel MM, Reczek L, Papciak D, Włodarczyk-Makuła M, Siwiec T, Trach Y. Mineral Materials Coated with and Consisting of MnO x-Characteristics and Application of Filter Media for Groundwater Treatment: A Review. Materials (Basel) 2020; 13:E2232. [PMID: 32413999 PMCID: PMC7287796 DOI: 10.3390/ma13102232] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/25/2020] [Accepted: 05/06/2020] [Indexed: 12/04/2022]
Abstract
For groundwater treatment, the technologies involving oxidation on MnOx filter bed are beneficial, common, and effectively used. The presence of MnOx is the mutual feature of filter media, both MnOx-coated mineral materials like quartz sand and gravel, chalcedonite, diatomite, glauconite, zeolite, or anthracite along with consisting of MnOx manganese ores. This review is based on the analysis of research and review papers, commercial data sheets, and standards. The paper aimed to provide new suggestions and useful information for further investigation of MnOx filter media for groundwater treatment. The presented compilations are based on the characteristics of coatings, methods, and conditions of its obtaining and type of filter media. The relationship between the properties of MnOx amendments and the obtained purification effects as well as the commonly used commercial products, their features, and applications have been discussed. The paper concludes by mentioning about improving catalytic/adsorption properties of non-reactive siliceous media opposed to ion-exchange minerals and about possible significance of birnessite type manganese oxide for water treatment. Research needs related to the assessment of the use MnOx filter media to heavy metals removal from groundwater in field operations and to standardize methodology of testing MnOx filter media for water treatment were identified.
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Affiliation(s)
- Magdalena M. Michel
- Institute of Environmental Engineering, Warsaw University of Life Sciences—SGGW, 166 Nowoursynowska st., 02-787 Warsaw, Poland; (L.R.); (T.S.)
| | - Lidia Reczek
- Institute of Environmental Engineering, Warsaw University of Life Sciences—SGGW, 166 Nowoursynowska st., 02-787 Warsaw, Poland; (L.R.); (T.S.)
| | - Dorota Papciak
- Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, 6 Powstańców Warszawy Ave., 35-959 Rzeszów, Poland;
| | - Maria Włodarczyk-Makuła
- Faculty of Infrastructure and Environment, Czestochowa University of Technology, 69 Dąbrowskiego st., 42-200 Częstochowa, Poland;
| | - Tadeusz Siwiec
- Institute of Environmental Engineering, Warsaw University of Life Sciences—SGGW, 166 Nowoursynowska st., 02-787 Warsaw, Poland; (L.R.); (T.S.)
| | - Yuliia Trach
- Department of Water Supply, Water Disposal and Drilling Engineering, National University of Water and Environmental Engineering, 11 Soborna st., 33028 Rivne, Ukraine;
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Le QC, Nguyen CC, Le TTN, Lefèvre T, Dinh MTN, Hong SH, Kim SY, Le QV. Synthesis of Diatomite-Based Mesoporous Wool-Ball-Like Microspheres and Their Application for Toluene Total Oxidation Reaction. Nanomaterials (Basel) 2020; 10:E339. [PMID: 32079261 DOI: 10.3390/nano10020339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/09/2020] [Accepted: 02/11/2020] [Indexed: 11/24/2022]
Abstract
Diatomite (DE) has attracted considerable attention owing to its abundance, low cost, and potential for a wide variety of applications. This work reports the development of mesoporous wool-ball-like (WBL) microspheres from natural DE through a simple hydrothermal treatment. We discovered that the presence of cetyltrimethylammonium bromide is a prerequisite for generating monodispersed WBL microspheres. The mechanism for the transformation of pristine DE into mesoporous microspheres through dissolution–recrystallization was clearly investigated. Interestingly, the microspheres exhibited a specific surface area 25–60 times larger than that of the pristine DE. The application of WBL microsphere DE as an effective support for metallic catalysts in the toluene total oxidation reaction was demonstrated.
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De Luca Bossa F, Santillo C, Verdolotti L, Campaner P, Minigher A, Boggioni L, Losio S, Coccia F, Iannace S, Lama GC. Greener Nanocomposite Polyurethane Foam Based on Sustainable Polyol and Natural Fillers: Investigation of Chemico-Physical and Mechanical Properties. Materials (Basel) 2020; 13:ma13010211. [PMID: 31947908 PMCID: PMC6981749 DOI: 10.3390/ma13010211] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/31/2019] [Accepted: 01/02/2020] [Indexed: 12/02/2022]
Abstract
Nowadays, the chemical industry is looking for sustainable chemicals to synthesize nanocomposite bio-based polyurethane foams, PUs, with the aim to replace the conventional petrochemical precursors. Some possibilities to increase the environmental sustainability in the synthesis of nanocomposite PUs include the use of chemicals and additives derived from renewable sources (such as vegetable oils or biomass wastes), which comprise increasingly wider base raw materials. Generally, sustainable PUs exhibit chemico-physical, mechanical and functional properties, which are not comparable with those of PUs produced from petrochemical precursors. In order to enhance the performances, as well as the bio-based aspect, the addition in the polyurethane formulation of renewable or natural fillers can be considered. Among these, walnut shells and cellulose are very popular wood-based waste, and due to their chemical composition, carbohydrate, protein and/or fatty acid, can be used as reactive fillers in the synthesis of Pus. Diatomite, as a natural inorganic nanoporous filler, can also be evaluated to improve mechanical and thermal insulation properties of rigid PUs. In this respect, sustainable nanocomposite rigid PU foams are synthesized by using a cardanol-based Mannich polyol, MDI (Methylene diphenyl isocyanate) as an isocyanate source, catalysts and surfactant to regulate the polymerization and blowing reactions, H2O as a sustainable blowing agent and a suitable amount (5 wt%) of ultramilled walnut shell, cellulose and diatomite as filler. The effect of these fillers on the chemico-physical, morphological, mechanical and functional performances on PU foams has been analyzed.
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Affiliation(s)
- Ferdinando De Luca Bossa
- Institute for Polymers, Composites and Biomaterials-CNR, 80055 Portici (NA), Italy; (F.D.L.B.); (C.S.); (S.I.); (G.C.L.)
| | - Chiara Santillo
- Institute for Polymers, Composites and Biomaterials-CNR, 80055 Portici (NA), Italy; (F.D.L.B.); (C.S.); (S.I.); (G.C.L.)
| | - Letizia Verdolotti
- Institute for Polymers, Composites and Biomaterials-CNR, 80055 Portici (NA), Italy; (F.D.L.B.); (C.S.); (S.I.); (G.C.L.)
- Correspondence: ; Tel.: +39-081-775-8839; Fax: +39-081-775-8850
| | - Pietro Campaner
- AEP Polymers Srl, 34149 Basovizza, Trieste, Italy; (P.C.); (A.M.)
| | - Andrea Minigher
- AEP Polymers Srl, 34149 Basovizza, Trieste, Italy; (P.C.); (A.M.)
| | - Laura Boggioni
- Institute for Chemical Science and Technologies -CNR, 20133 Milano, Italy; (L.B.); (S.L.); (F.C.)
| | - Simona Losio
- Institute for Chemical Science and Technologies -CNR, 20133 Milano, Italy; (L.B.); (S.L.); (F.C.)
| | - Francesca Coccia
- Institute for Chemical Science and Technologies -CNR, 20133 Milano, Italy; (L.B.); (S.L.); (F.C.)
| | - Salvatore Iannace
- Institute for Polymers, Composites and Biomaterials-CNR, 80055 Portici (NA), Italy; (F.D.L.B.); (C.S.); (S.I.); (G.C.L.)
- Institute for Chemical Science and Technologies -CNR, 20133 Milano, Italy; (L.B.); (S.L.); (F.C.)
| | - Giuseppe C. Lama
- Institute for Polymers, Composites and Biomaterials-CNR, 80055 Portici (NA), Italy; (F.D.L.B.); (C.S.); (S.I.); (G.C.L.)
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Liu Y, Li Z, Zhang Z, Zhao T, Wang M, Wang X. Determination of Urinary Hydroxyl PAHs Using Graphene Oxide@ Diatomite Based Solid-Phase Extraction and High-Performance Liquid Chromatography. Molecules 2019; 24:molecules24224186. [PMID: 31752256 PMCID: PMC6891718 DOI: 10.3390/molecules24224186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/10/2019] [Accepted: 11/18/2019] [Indexed: 11/16/2022] Open
Abstract
A diatomite supported graphene oxide composite (GO@Dt–NH2) was fabricated and explored as a solid-phase extraction adsorbent coupled with high performance liquid chromatography to determine the trace hydroxyl polycyclic aromatic hydrocarbons (2-hydroxy-naphthalene, 2-hydroxy-fluorene, 1-hydroxy-phenanthrene, and 1-hydroxy-pyrene) in urine samples. The fabricated composites were characterized by X-ray powder diffractometry and scanning electron microscopy. GO@Dt–NH2 offered enhanced adsorption affinity towards the analytes compared with the bare diatomite. The amount of graphene oxide and the factors affecting solid-phase extraction were investigated in detail. Under the optimized conditions, the method gave good linearity (0.30–200 ng/mL) and a low detection limit (0.10–0.15 ng/mL) for the hydroxyl polycyclic aromatic hydrocarbons. The average recovery for spiked urine samples with three levels ranged from 90.6% to 100%. The intra-day and inter-day relative standard deviations were in the range of 1.8–6.4% and 2.7–11.8%, respectively. Besides, the GO@Dt–NH2 provided enrichment factors of 18–20 and superior purification ability. The developed method was successfully applied to the determination of hydroxyl polycyclic aromatic hydrocarbons in urine samples from smoking volunteers.
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Affiliation(s)
| | | | | | | | - Manman Wang
- Correspondence: (M.W.); (X.W.); Tel.: +86-031-5880-5576 (M.W.); +86-031-5880-5576 (X.W.)
| | - Xuesheng Wang
- Correspondence: (M.W.); (X.W.); Tel.: +86-031-5880-5576 (M.W.); +86-031-5880-5576 (X.W.)
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Ma M, Ma X, Cui S, Liu T, Tian Y, Wang Y. Low Temperature NH 3-SCR over Mn-Ce Oxides Supported on MCM-41 from Diatomite. Materials (Basel) 2019; 12:E3654. [PMID: 31698844 DOI: 10.3390/ma12223654] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 12/03/2022]
Abstract
A series of MCM-41 molecular sieves with different molar ratio of template to silicon were synthesized through hydrothermal synthesis method by using cetyltrimethylammonium bromide (CTAB) as the template, diatomite as the silicon source. By using impregnation method, the Mn-Ce/MCM-41 SCR molecular sieve-based catalysts were prepared. The results observed that when the molar ratio of template to silicon was 0.2:1, the MCM-41 as catalyst carrier has the highest surface area and largest pore volume, it also presented typically ordered hexagonal arrays of uniform channels. The denitration catalytic material based on this carrier has a high number of Lewis acidic sites, and the denitration efficiency can reach more than 93%.
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Ao M, Liu K, Tang X, Li Z, Peng Q, Huang J. BiOCl/TiO 2/ diatomite composites with enhanced visible-light photocatalytic activity for the degradation of rhodamine B. Beilstein J Nanotechnol 2019; 10:1412-1422. [PMID: 31431853 PMCID: PMC6664401 DOI: 10.3762/bjnano.10.139] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 06/27/2019] [Indexed: 06/10/2023]
Abstract
A BiOCl/TiO2/diatomite (BTD) composite was synthesized via a modified sol-gel method and precipitation/calcination method for application as a photocatalyst and shows promise for degradation of organic pollutants in wastewater upon visible-light irradiation. In the composite, diatomite was used as a carrier to support a layer of titanium dioxide (TiO2) nanoparticles and bismuth oxychloride (BiOCl) nanosheets. The results show that TiO2 nanoparticles and BiOCl nanosheets uniformly cover the surface of diatomite and bring TiO2 and BiOCl into close proximity. Rhodamine B was used as the target degradation product and visible light (λ > 400 nm) was used as the light source for the evaluation of the photocatalytic properties of the prepared BTD composite. The results show that the catalytic performance of the BTD composite under visible-light irradiation is much higher than that of TiO2 or BiOCl alone. When the molar ratio of BiOCl to TiO2 is 1:1 and the calcination temperature is 400 °C, the composite was found to exhibit the best catalytic effect. Through the study of the photocatalytic mechanism, it is shown that the strong visible-light photocatalytic activity of the BTD composite results mainly from the quick migration of photoelectrons from the conduction band of TiO2/diatomite to the surface of BiOCl, which promotes the separation effect and reduces the recombination rate of the photoelectron-hole pair. Due to the excellent catalytic performance, the BTD composite shows great potential for wide application in the field of sewage treatment driven by solar energy.
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Affiliation(s)
- Minlin Ao
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
- Hunan Key Laboratory of Mineral Materials and Application, Central South University, Changsha 410083, China
| | - Kun Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
- Hunan Key Laboratory of Mineral Materials and Application, Central South University, Changsha 410083, China
| | - Xuekun Tang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
- Hunan Key Laboratory of Mineral Materials and Application, Central South University, Changsha 410083, China
| | - Zishun Li
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
- Hunan Key Laboratory of Mineral Materials and Application, Central South University, Changsha 410083, China
| | - Qian Peng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
- Hunan Key Laboratory of Mineral Materials and Application, Central South University, Changsha 410083, China
| | - Jing Huang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
- Hunan Key Laboratory of Mineral Materials and Application, Central South University, Changsha 410083, China
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Vinaches P, Schwanke AJ, Lopes CW, Souza IMS, Villarroel-Rocha J, Sapag K, Pergher SBC. Incorporation of Brazilian Diatomite in the Synthesis of An MFI Zeolite. Molecules 2019; 24:molecules24101980. [PMID: 31126026 PMCID: PMC6571739 DOI: 10.3390/molecules24101980] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/17/2019] [Accepted: 04/23/2019] [Indexed: 11/30/2022] Open
Abstract
The need for greener procedures is a fact to reduce residues, to decrease industrial costs, and to accomplish the environmental agreements. In an attempt to address this question, we propose the addition of a natural resource, Brazilian diatomite, to an MFI zeolite traditional synthesis. We have characterized the resulting product with different techniques, such as X-ray diffraction, microscopy, and gas sorption, and, afterwards, we evaluate the greenness of the process by the Green Star method. The results were promising: We obtained the desired topology in the form of small crystallites aggregated and a pore diameter of 0.8 nm. In conclusion, the product has the necessary characteristics for an adsorption or catalytic future tests and escalation to industrial production.
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Affiliation(s)
- Paloma Vinaches
- Laboratório de Peneiras Moleculares, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, Brazil.
| | - Anderson Joel Schwanke
- Laboratório de Peneiras Moleculares, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, Brazil.
| | - Christian Wittee Lopes
- Instituto de Tecnología Química (Universitat Politécnica de València - CSIC), 46022 Valencia, Spain.
| | - Iane M S Souza
- Laboratório de Peneiras Moleculares, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, Brazil.
| | - Jhonny Villarroel-Rocha
- Laboratorio de Sólidos Porosos, Instituto de Física Aplicada, CONICET-Universidad Nacional de San Luis, San Luis C.P. 5700, Argentina.
| | - Karim Sapag
- Laboratorio de Sólidos Porosos, Instituto de Física Aplicada, CONICET-Universidad Nacional de San Luis, San Luis C.P. 5700, Argentina.
| | - Sibele B C Pergher
- Laboratório de Peneiras Moleculares, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, Brazil.
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Cheng Y, Li L, Zhou P, Zhang Y, Liu H. Multi-Objective Optimization Design and Test of Compound Diatomite and Basalt Fiber Asphalt Mixture. Materials (Basel) 2019; 12:E1461. [PMID: 31064147 DOI: 10.3390/ma12091461] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/03/2019] [Accepted: 05/05/2019] [Indexed: 11/17/2022]
Abstract
This study focuses on improving the performance of asphalt mixture at low- and high- temperature and analyzing the effect of diatomite and basalt fiber on the performance of the asphalt mixture. Based on the L16(45) orthogonal experimental design (OED), the content of diatomite (D) and basalt fiber (B) and the asphalt-aggregate (A) ratio were selected as contributing factors, and each contributing factor corresponded to four levels. Bulk volume density (γf), volume of air voids (VV), voids filled with asphalt (VFA), Marshall stability (MS) and splitting strength at -10 °C (Sb) were taken as the evaluation indexes. According to the results of the orthogonal experiment, the range analysis and variance analysis were used to study the effect of the diatomite content, basalt fiber content and asphalt-aggregate ratio on the performance of the asphalt mixture, and the grey correlation grade analysis (GCGA) was used to obtain the optimal mixing scheme. Furthermore, the performance tests were conducted to evaluate the performance improvement of asphalt mixtures with diatomite and basalt fibers, and the scanning electron microscopy (SEM) tests were carried out to analyze the mechanism of diatomite and basalt fibers in asphalt mixtures. The results revealed that the addition of diatomite and basalt fiber can significantly increase the VV of asphalt mixture, and reduce γf and VFA; the optimal performance of the asphalt mixture at high- and low-temperature are achieved with 14% diatomite, 0.32% basalt fibers and 5.45% asphalt-aggregate ratio. Moreover, the porous structure of diatomite and the overlapping network of basalt fibers are the main reasons for improving the performance of asphalt mixture.
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Yang X, Li Y, Li Y, Ye D, Yuan L, Sun Y, Han D, Hu Q. Solid Matrix-Supported Supercritical CO₂ Enhances Extraction of γ-Linolenic Acid from the Cyanobacterium Arthrospira ( Spirulina) platensis and Bioactivity Evaluation of the Molecule in Zebrafish. Mar Drugs 2019; 17:md17040203. [PMID: 30935028 PMCID: PMC6520994 DOI: 10.3390/md17040203] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/21/2019] [Accepted: 03/26/2019] [Indexed: 02/06/2023] Open
Abstract
Marine cyanobacteria represent a large untapped source of functional glycolipids enriched with polyunsaturated fatty acids (PUFAs) for human health. However, advanced methods for scalable isolation of diverse species containing high-purity PUFA-rich glycolipids will have to be developed and their possible pharmaceutical and nutraceutical functions identified. This paper introduces a novel solid matrix-supported supercritical CO₂ extraction method for scalable isolation of the PUFA γ-linolenic acid (GLA)-enriched glycolipids from the cyanobacterium Arthrospira (Spirulina) platensis, which has been the most widely used among microalgae in the nutraceutical and pharmaceutical industries. Of various porous materials studied, diatomite was the best to facilitate extraction of GLA-rich glycolipids, resulting in an extraction efficiency of 98%. Gamma-linolenic acid made up 35% of total fatty acids (TFAs) in the extracts, which was considerably greater than that obtained with ethanol (26%), Bligh and Dyer (24%), and in situ transesterification (24%) methods, respectively. Lipidomics analysis revealed that GLA was exclusively associated with galactolipids. Pharmaceutical functions of GLA-rich galactolipids were investigated on a zebrafish caudal fin regeneration model. The results suggested that GLA extracted from A. platensis possessed anti-oxidative, anti-inflammatory, and anti-allergic activities, which acted in a concerted manner to promote post-injury regeneration of zebrafish.
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Affiliation(s)
- Xiaohong Yang
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yi Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100049, China.
| | - Yanhua Li
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Ding Ye
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100049, China.
| | - Li Yuan
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Yonghua Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100049, China.
| | - Danxiang Han
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- Key Laboratory for Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Qiang Hu
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
- Key Laboratory for Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
- Beijing Key Laboratory of Algae Biomass, Microalgae Biotechnology Center, SDIC Biotech Investment Co., LTD., State Development & Investment Corp., Beijing 100142, China.
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Yue Y, Abdelsalam M, Luo D, Khater A, Musanyufu J, Chen T. Evaluation of the Properties of Asphalt Mixes Modified with Diatomite and Lignin Fiber: A Review. Materials (Basel) 2019; 12:ma12030400. [PMID: 30696026 PMCID: PMC6384685 DOI: 10.3390/ma12030400] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 01/17/2019] [Accepted: 01/23/2019] [Indexed: 11/22/2022]
Abstract
Due to rapid growth of traffic density, the phenomenon of overloading on high-grade highways causes various modes of distresses to the pavement such as rutting, thermal cracking, and water damage. Modification of asphalt mixes is the most common solution to improve the performance of asphalt pavement to mitigate its damages. This paper provides a review on the influence of diatomite or lignin fiber as a modifier in asphalt mixes. In order to assess the effectiveness of selected additives on asphalt mix performance, several tests, such as wheel tracking, indirect tensile, three points bending, freeze thaw splitting, and marshall immersion, were reviewed. The review indicated that the addition of diatomite increases the high temperature rutting resistance of asphalt mixes, but some researchers observed that it has a little improvement on the low temperature performance of asphalt mixes and the optimum amount of diatomite at 12–14% of asphalt binder can be added into the mix. In contrast, lignin fiber has a significant effect on the low temperature cracking resistance of asphalt mixes; however, its influence on the high temperature rutting resistance of asphalt mix is limited, and the optimum amount of lignin fiber is 0.2–0.4% per asphalt mix composition. The review also indicated that the single additives haven’t the ability to enhance the overall performance of asphalt mix. Consequently, the utilization of double additives can improve the overall performance of asphalt mixes at the same time, but it is still in an early stage in the application of highway engineering due to all previous researches concentrated on the single modification. Moreover, this review suggests that the future use of diatomite and lignin fiber compound modified asphalt mix can improve the overall mix performance.
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Affiliation(s)
- Yanchao Yue
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
| | - Moustafa Abdelsalam
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
| | - Dong Luo
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
| | - Ahmed Khater
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
| | - Josephine Musanyufu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
| | - Tangbing Chen
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
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