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Luo Q, Cui W, Wang H, Xiao B, Chen L, Wang Y, Zhang Z, Liu Y, Cao X. Efficient capture of U(VI) by magnetic Zr(IV)-ethylenediamine tetramethylene phosphonic acid inorganic-organic hybrid. Environ Sci Pollut Res Int 2022; 29:68320-68331. [PMID: 35536467 DOI: 10.1007/s11356-022-20548-9] [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: 11/16/2021] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
The separation of magnetic adsorbents from aqueous solutions is made simple by using an external magnetic field. Herein, magnetic Zr(IV)-ethylenediamine tetramethylene phosphonic acid (EDTMPA) hybrids (MZrOP-x-T, x, and T were the different quality of Fe3O4@C and temperature in the synthesis process, respectively). A study was conducted on the uses of MZrOP-x-T in the capture of U(VI). The influences of pH, adsorption period, initial concentration, and temperature were all investigated. Furthermore, the desorption and reusability of the materials were explored. The optimal values of x and T were 0.2 g and 100 °C, respectively. At 298.15 K, the maximum adsorption capacity of MZrOP-0.2-100 was 330.30 mg·g-1. The current research demonstrates that MZrOP-0.2-100 is a potentially effective material in removing U(VI) from radioactive solution.
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Affiliation(s)
- Qie Luo
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Wenzheng Cui
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Ministry of Education, Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Huan Wang
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Bo Xiao
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Lei Chen
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Youqun Wang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Ministry of Education, Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Zhibin Zhang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Ministry of Education, Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Yunhai Liu
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Ministry of Education, Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Xiaohong Cao
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China.
- Ministry of Education, Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China.
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2
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Deng C, Zhu H, Huang Y, Liu H, Liu P, Cui P, Chao Y, Liu J, Wang R, Wu P, Zhu W. High temperature oxidizing-resistant magnetic high entropy catalyst for efficient oxidative desulfurization. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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3
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Alegbeleye O, Daramola OB, Adetunji AT, Ore OT, Ayantunji YJ, Omole RK, Ajagbe D, Adekoya SO. Efficient removal of antibiotics from water resources is a public health priority: a critical assessment of the efficacy of some remediation strategies for antibiotics in water. Environ Sci Pollut Res Int 2022; 29:56948-57020. [PMID: 35716301 DOI: 10.1007/s11356-022-21252-4] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 05/30/2022] [Indexed: 05/27/2023]
Abstract
This review discusses the fundamental principles and mechanism of antibiotic removal from water of some commonly applied treatment techniques including chlorination, ozonation, UV-irradiation, Fenton processes, photocatalysis, electrochemical-oxidation, plasma, biochar, anaerobicdigestion, activated carbon and nanomaterials. Some experimental shortfalls identified by researchers such as certain characteristics of degradation agent applied and the strategies explored to override the identified limitations are briefly discussed. Depending on interactions of a range of factors including the type of antibiotic compound, operational parameters applied such as pH, temperature and treatment time, among other factors, all reviewed techniques can eliminate or reduce the levels of antibiotic compounds in water to varying extents. Some of the reviewed techniques such as anaerobic digestion generally require longer treatment times (up to 360, 193 and 170 days, according to some studies), while others such as photocatalysis achieved degradation within short contact time (within a minimum of 30, but up to 60, 240, 300 and 1880 minutes, in some cases). For some treatment techniques such as ozonation and Fenton, it is apparent that subjecting compounds to longer treatment times may improve elimination efficiency, whereas for some other techniques such as nanotechnology, application of longer treatment time generally meant comparatively minimal elimination efficiency. Based on the findings of experimental studies summarized, it is apparent that operational parameters such as pH and treatment time, while critical, do not exert sole or primary influence on the elimination percentage(s) achieved. Elimination efficiency achieved rather seems to be due more to the force of a combination of several factors.
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Affiliation(s)
- Oluwadara Alegbeleye
- Department of Food Science and Nutrition, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, Campinas, SP, 13083-862, Brazil.
| | | | - Adewole Tomiwa Adetunji
- Department of Agriculture, Faculty of Applied Sciences, Cape Peninsula University of Technology, Wellington, Western Cape, 7654, South Africa
| | - Odunayo T Ore
- Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Yemisi Juliet Ayantunji
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
- Advanced Space Technology Applications Laboratory, Cooperative Information Network, National Space Research and Development Agency, Ile-Ife, P.M.B. 022, Nigeria
| | - Richard Kolade Omole
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
- Microbiology Unit, Department of Applied Sciences, Osun State College of Technology, Esa-Oke, Nigeria
| | - Damilare Ajagbe
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Oklahoma, USA
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4
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Wang X, Zhu Y, Zhou L, Zhao P, Xiong Z, Yu J. Magnetic solid-phase extraction based on zirconium-based metal-organic frameworks for simultaneous enantiomeric determination of eight chiral pesticides in water and fruit juices. Food Chem 2022; 370:131056. [PMID: 34530346 DOI: 10.1016/j.foodchem.2021.131056] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/27/2021] [Accepted: 09/02/2021] [Indexed: 12/12/2022]
Abstract
A novel multi-residue method, magnetic solid-phase extraction combined with LC-MS/MS, was proposed for simultaneous enantiomeric determination of eight chiral pesticides in water and fruit juices. Fe3O4@C@UiO-66 was firstly used to extract and enrich pesticides, showing excellent adsorption capacity, which was proved by adsorption kinetic and thermodynamic experiments. Multiple extraction parameters were optimized by Plackett-Burman and Box-Behnken design. Under optimized conditions, good linearity (1.0-200 ng L-1, R2 ≥ 0.9953) for all analytes, detection limits (0.10 to 0.35 ng L-1), quantitation limits (0.35 to 1.00 ng L-1), recoveries (83.68-95.99%), and precision (intra-day RSD ≤ 7.06%, inter-day RSD ≤ 9.40%) were obtained, meeting the requirements of pesticides residues analysis. It is worth mentioning that eight chiral pesticides can be separated quickly within 19 min. The above results indicate that the proposed method with satisfactory sensitivity and accuracy has the potential for routine analysis of chiral pesticide residues in aqueous samples.
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5
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Nasehi N, Mirza B, Soleimani‐Amiri S. Fe
3
O
4
@C@
prNHSO
3
H
: A novel magnetically recoverable heterogeneous catalyst in green synthesis of diverse triazoles. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Niloufar Nasehi
- Department of Chemistry, Karaj Branch Islamic Azad University Karaj Iran
| | - Behrooz Mirza
- Department of Chemistry, Karaj Branch Islamic Azad University Karaj Iran
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Snellman M, Eom N, Ek M, Messing ME, Deppert K. Continuous gas-phase synthesis of core-shell nanoparticles via surface segregation. Nanoscale Adv 2021; 3:3041-3052. [PMID: 36133665 PMCID: PMC9419486 DOI: 10.1039/d0na01061h] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/14/2021] [Indexed: 05/09/2023]
Abstract
Synthesis methods of highly functional core@shell nanoparticles with high throughput and high purity are in great demand for applications, including catalysis and optoelectronics. Traditionally chemical synthesis has been widely explored, but recently, gas-phase methods have attracted attention since such methods can provide a more flexible choice of materials and altogether avoid solvents. Here, we demonstrate that Cu@Ag core-shell nanoparticles with well-controlled size and compositional variance can be generated via surface segregation using spark ablation with an additional heating step, which is a continuous gas-phase process. The characterization of the nanoparticles reveals that the Cu-Ag agglomerates generated by spark ablation adopt core-shell or quasi-Janus structures depending on the compaction temperature used to transform the agglomerates into spherical particles. Molecular dynamics (MD) simulations verify that the structural evolution is caused by heat-induced surface segregation. With the incorporated heat treatment that acts as an annealing and equilibrium cooling step after the initial nucleation and growth processes in the spark ablation, the presented method is suitable for creating nanoparticles with both uniform size and composition and uniform bimetallic configuration. We confirm the compositional uniformity between particles by analyzing compositional variance of individual particles rather than presenting an ensemble-average of many particles. This gas-phase synthesis method can be employed for generating other bi- or multi-metallic nanoparticles with the predicted configuration of the structure from the surface energy and atomic size of the elements.
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Affiliation(s)
- Markus Snellman
- Lund University, Department of Physics and NanoLund Box 118 22100 Lund Sweden
| | - Namsoon Eom
- Lund University, Department of Physics and NanoLund Box 118 22100 Lund Sweden
| | - Martin Ek
- Lund University, Department of Chemistry and NanoLund, Centre for Analysis and Synthesis Box 124 22100 Lund Sweden
| | - Maria E Messing
- Lund University, Department of Physics and NanoLund Box 118 22100 Lund Sweden
| | - Knut Deppert
- Lund University, Department of Physics and NanoLund Box 118 22100 Lund Sweden
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7
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Ghavidel H, Mirza B, Soleimani-Amiri S. A Novel, Efficient, and Recoverable Basic Fe 3O 4@C Nano-Catalyst for Green Synthesis of 4 H-Chromenes in Water via One-Pot Three Component Reactions. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2019.1607413] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hassan Ghavidel
- Department of Chemistry, South Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Behrooz Mirza
- Department of Chemistry, Karaj Branch, Islamic Azad University, Karaj, Iran
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8
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Zhu Y, Han J, Wu J, Li Y, Wang L, Mao Y, Wang Y. A two-step method for the synthesis of magnetic immobilized cellulase with outstanding thermal stability and reusability. NEW J CHEM 2021. [DOI: 10.1039/d0nj06037b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The cellulase electrostatically adsorbed on the surface of Fe3O4@C magnetic nanoparticles was embedded with silica to form the immobilized cellulase. The stability and reusability were greatly improved, while the synthesis process was simple.
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Affiliation(s)
- Yan Zhu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Juan Han
- School of Food and Biological Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Jiacong Wu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Yuanyuan Li
- Jingjiang College
- Jiangsu University
- Zhenjiang
- China
| | - Lei Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
| | - Yanli Mao
- Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology
- Henan University of Urban Construction
- Pingdingshan
- China
| | - Yun Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- China
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Srikhaow A, Butburee T, Pon-on W, Srikhirin T, Uraisin K, Suttiponpanit K, Chaveanghong S, Smith SM. Efficient Mercury Removal at Ultralow Metal Concentrations by Cysteine Functionalized Carbon-Coated Magnetite. Applied Sciences 2020; 10:8262. [DOI: 10.3390/app10228262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This work reports the preparation and utility of cysteine-functionalized carbon-coated Fe3O4 materials (Cys-C@Fe3O4) as efficient sorbents for remediation of Hg(II)-contaminated water. Efficient removal (90%) of Hg(II) from 1000 ppb aqueous solutions is possible, at very low Cys-C@Fe3O4 sorbent loadings (0.01 g sorbent per liter of Hg(II) solution). At low metal concentrations (5–100 ppb Hg(II)), where adsorption is typically slow, Hg(II) removal efficiencies of 94–99.4% were achievable, resulting in final Hg(II) levels of <1.0 ppb. From adsorption isotherms, the Hg(II) adsorption capacity for Cys-C@Fe3O4 is 94.33 mg g−1, around three times that of carbon-coated Fe3O4 material. The highest partition coefficient (PC) of 2312.5 mgg−1µM−1 was achieved at the initial Hg (II) concentration of 100 ppb, while significantly high PC values of 300 mgg−1µM−1 and above were also obtained in the ultralow concentration range (≤20 ppb). Cys-C@Fe3O4 exhibits excellent selectivity for Hg(II) when tested in the presence of Pb(II), Ni(II), and Cu(II) ions, is easily separable from aqueous media by application of an external magnet, and can be regenerated for three subsequent uses without compromising Hg(II) uptake. Derived from commercially available raw materials, it is highly possible to achieve large-scale production of the functional sorbent for practical applications.
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Li Z, Chen Z, Zhu Q, Song J, Li S, Liu X. Improved performance of immobilized laccase on Fe 3O 4@C-Cu 2+ nanoparticles and its application for biodegradation of dyes. J Hazard Mater 2020; 399:123088. [PMID: 32937718 DOI: 10.1016/j.jhazmat.2020.123088] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [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: 04/06/2020] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 05/05/2023]
Abstract
An effective strategy for enhancement of catalytic activity and stability of immobilized laccase via metal affinity adsorption on Fe3O4@C-Cu2+ nanoparticles was developed, which involved the fabrication of hydroxyl and carboxyl functionalized Fe3O4@C nanoparticles via a simple hydrothermal process and the subsequent chelation with Cu2+ for the immobilization of laccase under a mild condition. Our results revealed that the Fe3O4@C-Cu2+ nanoparticles possess a high loading amount of bovine serum albumin (BSA, 436 mg/g support) and laccase activity recovery of 82.3 % after immobilization. Laccase activity assays indicated that thermal and pH stabilities, and resistances to organic solvents and metal ions of the immobilized laccase were relatively higher than those of the free enzyme. The immobilized laccase maintained more than 61 % of its original activity after 10 consecutive reuses. Most importantly, the immobilized laccase possessed excellent degradation of diverse synthetic dyes. The degradation rates of malachite green (MG), brilliant green (BG), crystal violet (CV), azophloxine, Procion red MX-5B, and reactive blue 19 (RB19) was approximately 99, 93, 79, 88, 75 and 81 (%) in the first cycle. Even after 10 consecutive reuses, the removal efficiencies of the six dyes were found to be 94, 80, 71, 78, 60, and 65 (%), respectively.
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Affiliation(s)
- Zhiguo Li
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, China; Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, 241000, China
| | - Zhiming Chen
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, China; Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, 241000, China.
| | - Qingpeng Zhu
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, China; Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, 241000, China
| | - Jiaojiao Song
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, China; Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, Anhui Polytechnic University, Wuhu, 241000, China
| | - Song Li
- School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Xinhua Liu
- School of Textile and Clothing, Anhui Polytechnic University, Wuhu, 241000, China
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11
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Parvin N, Mandal TK, Nagajyothi PC, Reddy PM, Reddy NR, Joo SW. Highly Fluorescent Doped Fe3O4@C Nanoparticles Cross the Blood–Brain Barrier: Help in Brain Imaging and Blocking the Life Cycle of Mosquitoes. J CLUST SCI 2020. [DOI: 10.1007/s10876-020-01938-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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12
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Kumar SR, Thangam R, Vivek R, Srinivasan S, Ponpandian N. Synergetic effects of thymoquinone-loaded porous PVPylated Fe 3O 4 nanostructures for efficient pH-dependent drug release and anticancer potential against triple-negative cancer cells. Nanoscale Adv 2020; 2:3209-3221. [PMID: 36134298 PMCID: PMC9416817 DOI: 10.1039/d0na00242a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/03/2020] [Indexed: 06/16/2023]
Abstract
Porous iron oxide nanostructures have attracted increasing attention due to their potential biomedical applications as nanocarriers for cancer and many other therapies as well as minimal toxicity. Herbal anti-cancer agent thymoquinone loaded on Fe3O4 nanoparticles is envisaged to offer solution towards cancer treatment. The purpose of the present study was to investigate the efficacy of thymoquinone-loaded PVPylated Fe3O4 magnetic nanoparticles (TQ-PVP-Fe3O4 NPs) against triple-negative breast cancer (TNBC) cells. The porous PVPylated Fe3O4 NPs were prepared by a simple solvothermal process, whereas the thymoquinone drug was loaded via the nanoprecipitation method. Fourier transform infrared (FTIR) spectroscopic analysis confirmed the molecular drug loading, and surface morphological observation further confirmed this. The quantity of thymoquinone adsorbed onto the porous PVPylated Fe3O4 NPs was studied by thermogravimetric analysis (TGA). The positive surface charge of TQ-PVP-Fe3O4 NPs facilitates the interaction of the NPs with cancer (MDA-MB-231) cells to enhance the biological functions. In addition, the anticancer potential of NPs involving cytotoxicity, apoptosis induction, reactive oxygen species (ROS) generation, and changes in the mitochondrial membrane potential (ΔΨ m) of TNBC cells was evaluated. TQ-PVP-Fe3O4 NP-treated cells effectively increased the ROS levels leading to cellular apoptosis. The study shows that the synthesized TQ-PVP-Fe3O4 NPs display pH-dependent drug release in the cellular environment to induce apoptosis-related cell death in TNBC cells. Hence, the prepared TQ-PVP-Fe3O4 NPs may be a suitable drug formulation for anticancer therapy.
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Affiliation(s)
- Selvaraj Rajesh Kumar
- Department of Nanoscience and Technology, Bharathiar University Coimbatore 641046 India +91-422-2422-397 +91-422-2428-421
| | - Ramar Thangam
- Department of Virology, King Institute of Preventive Medicine & Research Chennai 600032 India
| | - Raju Vivek
- Department of Zoology, Bharathiar University Coimbatore 641046 India
| | | | - Nagamony Ponpandian
- Department of Nanoscience and Technology, Bharathiar University Coimbatore 641046 India +91-422-2422-397 +91-422-2428-421
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13
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Taheri Hatkehlouei SF, Mirza B, Soleimani-Amiri S. Solvent-Free One-Pot Synthesis of Diverse Dihydropyrimidinones/Tetrahydropyrimidinones Using Biginelli Reaction Catalyzed by Fe3O4@C@OSO3H. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1781203] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Behrooz Mirza
- Department of Chemistry, Karaj Branch, Islamic Azad University, Karaj, Iran
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14
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Ghavidel H, Mirza B, Soleimani‐Amiri S, Manafi M. New insight into experimental and theoretical mechanistic study on a green synthesis of functionalized 4
H
‐chromenes using magnetic nanoparticle catalyst. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900554] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hassan Ghavidel
- Department of Science, South Tehran Branch Islamic Azad University Tehran Iran
| | - Behrooz Mirza
- Department of Chemistry, Karaj branch Islamic Azad University Karaj Iran
| | | | - Mohammadreza Manafi
- Department of Science, South Tehran Branch Islamic Azad University Tehran Iran
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15
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Gopalan Sibi M, Verma D, Kim J. Magnetic core–shell nanocatalysts: promising versatile catalysts for organic and photocatalytic reactions. Catalysis Reviews 2020. [DOI: 10.1080/01614940.2019.1659555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Malayil Gopalan Sibi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
| | - Deepak Verma
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
| | - Jaehoon Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
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16
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Wan J, Ding J, Tan W, Gao Y, Sun S, He C. Magnetic-activated carbon composites derived from iron sludge and biological sludge for sulfonamide antibiotic removal. Environ Sci Pollut Res Int 2020; 27:13436-13446. [PMID: 32026366 DOI: 10.1007/s11356-020-07940-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 10/11/2019] [Accepted: 01/29/2020] [Indexed: 05/27/2023]
Abstract
Novel magnetic-activated carbon composites (MACs) were synthesized via coupling of a glucose-assisted hydrothermal pretreatment and subsequent thermal treatment using iron sludge and biological sludge. The adsorption properties of MACs for sulfonamide antibiotic removal from aqueous solution were investigated. Results revealed that the MACs had a high specific surface area with well-distributed magnetic nano-sized Fe3O4/Fe0 particles with a graphitic shell. This finding indicates that the ferric compounds in the iron sludge were not only converted into magnetic ferrite but also worked as activators for graphitization of the surrounding amorphous carbon. The pseudo-second-order kinetics and Langmuir models were shown to well fit sulfonamide antibiotic adsorption on the MACs. There was a high correlation between the kl·qm and physicochemical parameters of the sulfonamides. The three parameters are molecular polarizability, octanol-water partition coefficient, and solubility, respectively. The sulfonamide adsorption by the MACs was highly pH dependent. Hydrophobic interaction, π-π interaction, as well as electrostatic interaction, played dominant roles in the sulfonamide adsorption.
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Affiliation(s)
- Junli Wan
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, China.
- Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway.
| | - Jian Ding
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, China
| | - Wanchun Tan
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Yinghong Gao
- Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - Shiquan Sun
- School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Chunbo He
- Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway
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Kiziltaş H, Tekin T, Tekin D. Preparation and characterization of recyclable Fe3O4@SiO2@TiO2 composite photocatalyst, and investigation of the photocatalytic activity. CHEM ENG COMMUN 2020. [DOI: 10.1080/00986445.2020.1743694] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Hakan Kiziltaş
- Faculty of Engineering, Department of Chemical Engineering, Ataturk University, Erzurum, Turkey
| | - Taner Tekin
- Faculty of Engineering, Department of Chemical Engineering, Ataturk University, Erzurum, Turkey
| | - Derya Tekin
- Faculty of Engineering, Department of Metallurgy and Materials Engineering, Ataturk University, Erzurum, Turkey
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18
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Tu Y, Peng Z, Huang J, Wu X, Kong L, Liang Z, Yang L, Lin Z. Preparation and Characterization of Magnetic Biochar Nanocomposites via a Modified Solvothermal Method and Their Use as Efficient Heterogeneous Fenton-like Catalysts. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b04590] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuting Tu
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Zhiping Peng
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Jichuan Huang
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Xuena Wu
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Lingjun Kong
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhixiong Liang
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Linxiang Yang
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
| | - Zhijun Lin
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangzhou 510640, China
- Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Guangzhou 510640, China
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19
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Samiei Z, Soleimani-Amiri S, Azizi Z. Fe 3O 4@C@OSO 3H as an efficient, recyclable magnetic nanocatalyst in Pechmann condensation: green synthesis, characterization, and theoretical study. Mol Divers 2021; 25:67-86. [PMID: 31927717 DOI: 10.1007/s11030-019-10025-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/23/2019] [Indexed: 10/25/2022]
Abstract
Novel sulfonated carbon-coated magnetic nanoparticles (SCCMNPs; Fe3O4@C@OSO3H) were designed, synthesized, characterized, and applied as an efficient nanocatalyst for green synthesis of coumarin derivatives through Pechmann condensation. The Fe3O4@C@OSO3H was manufactured through a simple and inexpensive two-step procedure and characterized by FTIR, EDX, XRD, SEM, TEM, DLS, VSM, and TGA techniques. It was identified as an efficient heterogeneous catalyst in the Pechmann condensation of phenol derivatives and β-ketoesters, leading to high-yield coumarin derivatives under solvent-free conditions. The Fe3O4@C@OSO3H removed after reaction finishing point by an external magnet, and it was reused fifteen times at the same conditions. Besides, theoretical studies were carried out using B3LYP/6-311++G(d,p) to more consideration of the reaction mechanism. The study of the frontier molecular orbitals, NBO atomic charges, molecular electrostatic potential of reactants, as well as Pechmann condensation mechanism was known very useful in suitable reactant choice. The reaction was performed through the electrophilic attack, dehydration, and trans-esterification, respectively.
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20
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Liang S, Shi S, Zhang H, Qiu J, Yu W, Li M, Gan Q, Yu W, Xiao K, Liu B, Hu J, Hou H, Yang J. One-pot solvothermal synthesis of magnetic biochar from waste biomass: Formation mechanism and efficient adsorption of Cr(VI) in an aqueous solution. Sci Total Environ 2019; 695:133886. [PMID: 31422325 DOI: 10.1016/j.scitotenv.2019.133886] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 05/03/2019] [Revised: 07/17/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
A facile one-pot solvothermal method was applied to synthesize a magnetic biochar composite (MB) using phoenix tree leaves-derived biochar as the carbon matrix. The structure of MB was optimized by varying the load ratio and particle size of Fe3O4 nanoparticles on biochar. Time-dependent structure and composition evolution of solid and liquid phases during heterogeneous solvothermal process were investigated to understand the formation mechanism of MB. Firstly, Fe2+/Fe3+ ions were coordinated by oxygen-containing groups on biochar and part of them were hydrolyzed to form iron hydroxides. Then, those iron-containing precursors were thermally decomposed and reduced to iron oxides; and finally Fe3O4 nanoparticles were generated. The MB had an adsorption capacity for Cr(VI) of 55.0 mg/g in an aqueous solution, which exceeds those of biochar (39.8 mg/g) and Fe3O4 nanoparticles (26.5 mg/g). The adsorption mechanism study reveals that biochar as a carbon skeleton mainly provided binding sites for Cr(VI) and electron-donor groups for reduction of Cr(VI), while Fe3O4 nanoparticles mainly involved in the immobilization of newly formed Cr(III) through formation of Fe(III)-Cr(III) hydroxide. MB exhibited a stable structure with a lower Fe leakage at pH 2.0 than that of a comparable magnetic biochar sample prepared by conventional co-precipitation method. Recycling experiments suggested that MB could keep 84% of its initial removal capability for Cr(VI) even after seven cycles. The results indicate that solvothermal method is a promising alternative to prepare magnetic biochar for adsorption of heavy metal-containing wastewater.
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Affiliation(s)
- Sha Liang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Shunquan Shi
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Haohao Zhang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Jingjing Qiu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Wenhao Yu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Mingyang Li
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Quan Gan
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Wenbo Yu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Keke Xiao
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Bingchuan Liu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Jingping Hu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Huijie Hou
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China.
| | - Jiakuan Yang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
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21
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Li J, Li M, Yang X, Zhang Y, Liu X, Liu F, Meng F. Morphology-controlled synthesis of boehmite with enhanced efficiency for the removal of aqueous Cr(VI) and nitrates. Nanotechnology 2019; 30:195702. [PMID: 30650385 DOI: 10.1088/1361-6528/aaff21] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Boehmite with different morphologies was synthesized using a simple hydrothermal method for the removal of Cr(VI) and nitrates from polluted water. When the pH of the hydrothermal system was changed, the final crystallization products had morphologies of one-dimensional rods or two-dimensional sheets with different sizes. The boehmites were characterized and used for the adsorption of aqueous Cr(VI) and nitrates. Their bulk structure and surface properties significantly changed with the corresponding morphology, which prominently affected their adsorption capacity. Boehmite with a 2D small sheet-like structure showed the highest adsorption capacity (64.7 mg g-1). Moreover, the small sheet-like boehmite showed a remarkable adsorption capacity towards nitrates (74.5-378.5 mg g-1) and maintained a high selectivity to Cr(VI) in the presence of competing anions such as NO3 -, [Formula: see text] and Cl-. The isotherms for Cr(VI) sorption could be better explained using the Langmuir model, indicating a monolayer adsorption of the Cr species, while the isotherms for nitrate sorption followed the Freundlich model, suggesting a multilayer adsorption. The active adsorption sites of boehmite were found to be the Lewis acid sites and surface hydroxyl groups according to the outcomes of the analysis using a series of characterization methods such as IR, Raman and x-ray photoelectron spectra. The unique structure of boehmite is beneficial to adsorb anion containments while maintaining a high selectivity to Cr(VI) species. Because of the multiple Lewis or Brönsted acid sites in boehmite, the Cr(VI) was reduced to less toxic Cr(III) species and immobilized on the surface of boehmite. In consideration of the low-cost and good regeneration capacity, the small sheet-like boehmite would be useful for the removal of anions present in polluted water.
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Affiliation(s)
- Jiacheng Li
- College of Environment, Tsinghua University, 30# Shuangqing Road, Hai Dian Distract, Beijing, 100086, People's Republic of China
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22
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Lima MM, Macuvele DLP, Nones J, Silva LL, Riella HG, Fiori MA, Soares C. Synthesis of Fe3O4–Fe2O3@C Core-Shell Nanoparticles: Effect of Reactional Parameters on Structural and Magnetics Properties. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01146-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Liu Y, Huo Z, Song Z, Zhang C, Ren D, Zhong H, Jin F. Preparing a magnetic activated carbon with expired beverage as carbon source and KOH as activator. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2018.11.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Sayed M, Abbas M, Abdel Moniem S, Ali MEM, Naga SM. Facile and Room Temperature Synthesis of Superparamagnetic Fe 3
O 4
/C Core/Shell Nanoparticles for Efficient Removal of Pb(II) From Aqueous Solution. ChemistrySelect 2019. [DOI: 10.1002/slct.201803939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Sayed
- Ceramics Department; National Research Center, El-Behouth Str.; 12622 Cairo Egypt
| | - Mohamed Abbas
- Ceramics Department; National Research Center, El-Behouth Str.; 12622 Cairo Egypt
- State Key Laboratory of Coal Conversion; Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001; China
| | - Shimaa M. Abdel Moniem
- Water Pollution Research Department, National Research Centre, 33 El Buhouth St., Dokki, Cairo; Egypt, P.O.12622
| | - M. E. M. Ali
- Water Pollution Research Department, National Research Centre, 33 El Buhouth St., Dokki, Cairo; Egypt, P.O.12622
| | - S. M. Naga
- Ceramics Department; National Research Center, El-Behouth Str.; 12622 Cairo Egypt
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25
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Jiang T, Wang Y, Li Z, Aslan H, Sun L, Sun Y, Wang W, Yu M. Prussian blue-encapsulated Fe 3O 4 nanoparticles for reusable photothermal sterilization of water. J Colloid Interface Sci 2019; 540:354-61. [PMID: 30660792 DOI: 10.1016/j.jcis.2019.01.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/12/2019] [Accepted: 01/14/2019] [Indexed: 12/22/2022]
Abstract
Waterborne health issues continue to grow despite the large number of available solutions. Current sterilization techniques to fight with waterborne diseases struggle to meet the demands on cost, efficiency and reach. Effective alternatives are pressingly required. Here we introduce Prussian blue coated ferroferric oxide (Fe3O4@PB) composites for water sterilization. The composites exhibit superior photothermal inactivation of bacteria under solar-light irradiation, with nearly complete inactivation of bacterial cells in only 15 min. Even for the mixed bacteria in authentic water matrices, the composites show excellent bacterial inactivation performance. Moreover, the highly magnetized iron core of the Fe3O4@PB enables magnetic separation and recycling. Multiple cycle runs reveal that Fe3O4@PB composites have exceptional stability and reusability. This work demonstrates a scalable, low-cost, high-efficiency and reusable sterilization method to improve water quality and safety.
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26
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Liu Y, Ren D, Song Z, Wan X, Zhang C, Jin F, Huo Z. A novel method to prepare a magnetic carbon-based adsorbent with sugar-containing water as the carbon source and DETA as the modifying reagent. Environ Sci Pollut Res Int 2018; 25:13645-13659. [PMID: 29500592 DOI: 10.1007/s11356-018-1493-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 10/13/2017] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
A novel magnetic heavy metal adsorbent was prepared via diethylenetriamine (DETA) modification on magnetic hydrothermal carbon, with glucose and sugar-containing waste water as the carbon source. The prepared materials were characterized by FT-IR, SEM, TEM, EDXRF, TGA, elemental analysis, XPS, and magnetic moment determination. In this paper, the adsorption mechanism of the modified and unmodified adsorbents was well discussed. Four kinds of waste water (watermelon juice, expired sprite, sugar-pressing waste water, and confectionary waste water) were employed to produce heavy metal ion adsorbents; the chemical properties of hydrothermal carbon derived from the proposed sources were analyzed as well. The maximum uptake capacity for Cu2+, Pb2+, and Cd2+ of the adsorbent produced from glucose was 26.88, 103.09, and 25.38 mg g-1, respectively. After 5 cycles, the adsorption ability was still well preserved. This work represents an efficient new direction for the treatment of heavy metal ions in water and the reuse of sugar-containing waste water. Graphical abstract The schemetic of DETA-modified magnetic carbon preparing from sugar-containing wastewater.
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Affiliation(s)
- Yunjie Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Dezhang Ren
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhiyuan Song
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xinyan Wan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Chuntao Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Fangming Jin
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhibao Huo
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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27
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Boustani K, Shayesteh SF, Salouti M, Jafari A, Shal AA. Synthesis, characterisation and potential biomedical applications of magnetic core–shell structures: carbon‐, dextran‐, SiO
2
‐ and ZnO‐coated Fe
3
O
4
nanoparticles. IET Nanobiotechnol 2017. [DOI: 10.1049/iet-nbt.2017.0044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | - Mojtaba Salouti
- Department of MicrobiologyFaculty of SciencesZanjan BranchIslamic Azad UniversityZanjanIran
| | - Atefeh Jafari
- Nanostructure LabPhysics DepartmentUniversity of GuilanRashtIran
| | - Alireza Ahadpour Shal
- Department of Electrical EngineeringFaculty of EngineeringIslamic Azad UniversityLahijan BranchLahijanIran
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28
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Mao H, Wang S, Lin JY, Wang Z, Ren J. Modification of a magnetic carbon composite for ciprofloxacin adsorption. J Environ Sci (China) 2016; 49:179-188. [PMID: 28007173 DOI: 10.1016/j.jes.2016.05.048] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 02/22/2016] [Revised: 04/27/2016] [Accepted: 05/20/2016] [Indexed: 06/06/2023]
Abstract
A magnetic carbon composite, Fe3O4/C composite, was fabricated by one-step hydrothermal synthesis, modified by heat treatment under an inert atmosphere (N2), and then used as an adsorbent for ciprofloxacin (CIP) removal. Conditions for the modification were optimized according to the rate of CIP removal. The adsorbent was characterized by Fourier transform infrared spectroscopy, X-ray diffraction measurements, vibrating-sample magnetometry, scanning electron microscopy, transmission electron microscopy, and N2 adsorption/desorption isotherm measurements. The results indicate that the modified adsorbent has substantial magnetism and has a large specific area, which favor CIP adsorption. The effects of solution pH, adsorbent dose, contact time, initial CIP concentration, ion strength, humic acid and solution temperature on CIP removal were also studied. Our results show that all of the above factors influence CIP removal. The Langmuir adsorption isotherm fits the adsorption process well, with the pseudo second-order model describing the adsorption kinetics accurately. The thermodynamic parameters indicate that adsorption is mainly physical adsorption. Recycling experiments revealed that the behavior of adsorbent is maintained after recycling for five times. Overall, the modified magnetic carbon composite is an efficient adsorbent for wastewater treatment.
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Affiliation(s)
- Haixin Mao
- College of Chemistry and Chemical Engineering, Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Shikui Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jian-Ying Lin
- College of Chemistry and Chemical Engineering, Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Zengshuang Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jun Ren
- College of Chemistry and Chemical Engineering, Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
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29
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Zhang W, Zhang LY, Zhao XJ, Zhou Z. Citrus pectin derived ultrasmall Fe3O4@C nanoparticles as a high-performance adsorbent toward removal of methylene blue. J Mol Liq 2016; 222:995-1002. [DOI: 10.1016/j.molliq.2016.07.144] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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30
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Wu T, Liu Y, Zeng X, Cui T, Zhao Y, Li Y, Tong G. Facile Hydrothermal Synthesis of Fe3O4/C Core-Shell Nanorings for Efficient Low-Frequency Microwave Absorption. ACS Appl Mater Interfaces 2016; 8:7370-80. [PMID: 26915716 DOI: 10.1021/acsami.6b00264] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Using elliptical iron glycolate nanosheets as precursors, elliptical Fe3O4/C core-shell nanorings (NRs) [25 ± 10 nm in wall thickness, 150 ± 40 nm in length, and 1.6 ± 0.3 in long/short axis ratio] are synthesized via a one-pot hydrothermal route. The surface-poly(vinylpyrrolidone) (PVP)-protected-glucose reduction/carbonization/Ostwald ripening mechanism is responsible for Fe3O4/C NR formation. Increasing the glucose/precursor molar ratio can enhance carbon contents, causing a linear decrease in saturation magnetization (Ms) and coercivity (Hc). The Fe3O4/C NRs reveal enhanced low-frequency microwave absorption because of improvements to their permittivity and impedance matching. A maximum RL value of -55.68 dB at 3.44 GHz is achieved by Fe3O4/C NRs with 11.95 wt % C content at a volume fraction of 17 vol %. Reflection loss (RL) values (≤-20 dB) are observed at 2.11-10.99 and 16.5-17.26 GHz. Our research provides insights into the microwave absorption mechanism of elliptical Fe3O4/C core-shell NRs. Findings indicate that ring-like and core-shell nanostructures are promising structures for devising new and effective microwave absorbers.
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Affiliation(s)
- Tong Wu
- College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, China
| | - Yun Liu
- College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China
| | - Xiang Zeng
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, China
| | - Tingting Cui
- College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China
| | - Yanting Zhao
- College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China
| | - Yana Li
- College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China
| | - Guoxiu Tong
- College of Chemistry and Life Sciences, Zhejiang Normal University , Jinhua, Zhejiang 321004, China
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31
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Sun W, Yang W, Xu Z, Li Q, Shang JK. Synthesis of Superparamagnetic Core-Shell Structure Supported Pd Nanocatalysts for Catalytic Nitrite Reduction with Enhanced Activity, No Detection of Undesirable Product of Ammonium, and Easy Magnetic Separation Capability. ACS Appl Mater Interfaces 2016; 8:2035-2047. [PMID: 26709845 DOI: 10.1021/acsami.5b10365] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Superparamagnetic nanocatalysts could minimize both the external and internal mass transport limitations and neutralize OH(-) produced in the reaction more effectively to enhance the catalytic nitrite reduction efficiency with the depressed product selectivity to undesirable ammonium, while possess an easy magnetic separation capability. However, commonly used qusi-monodispersed superparamagnetic Fe3O4 nanosphere is not suitable as catalyst support for nitrite reduction because it could reduce the catalytic reaction efficiency and the product selectivity to N2, and the iron leakage could bring secondary contamination to the treated water. In this study, protective shells of SiO2, polymethylacrylic acid, and carbon were introduced to synthesize Fe3O4@SiO2/Pd, Fe3O4@PMAA/Pd, and Fe3O4@C/Pd catalysts for catalytic nitrite reduction. It was found that SiO2 shell could provide the complete protection to Fe3O4 nanosphere core among these shells. Because of its good dispersion, dense structure, and complete protection to Fe3O4, the Fe3O4@SiO2/Pd catalyst demonstrated the highest catalytic nitrite reduction activity without the detection of NH4(+) produced. Due to this unique structure, the activity of Fe3O4@SiO2/Pd catalysts for nitrite reduction was found to be independent of the Pd nanoparticle size or shape, and their product selectivity was independent of the Pd nanoparticle size, shape, and content. Furthermore, their superparamagnetic nature and high saturation magnetization allowed their easy magnetic separation from treated water, and they also demonstrated a good stability during the subsequent recycling experiment.
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Affiliation(s)
- Wuzhu Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences , Shenyang, Liaoning Province 110016, People's Republic of China
| | - Weiyi Yang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences , Shenyang, Liaoning Province 110016, People's Republic of China
| | - Zhengchao Xu
- Zhangjiagang Green Tech Environmental Protection Equipment Co., LTD , Zhangjiagang, Jiangsu Province 215625, People's Republic of China
| | - Qi Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences , Shenyang, Liaoning Province 110016, People's Republic of China
| | - Jian Ku Shang
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
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Mondal K, Sharma A. Recent advances in the synthesis and application of photocatalytic metal–metal oxide core–shell nanoparticles for environmental remediation and their recycling process. RSC Adv 2016. [DOI: 10.1039/c6ra18102c] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Metal–metal oxide core–shell nanoparticles have received enormous research attention owing to their fascinating physicochemical properties and extensive applications. In this review we have discussed the challenges and recent advances in their synthesis and application.
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Affiliation(s)
- Kunal Mondal
- Department of Chemical and Biomolecular Engineering
- North Carolina State University
- Raleigh
- USA
| | - Ashutosh Sharma
- Department of Chemical Engineering
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
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33
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Tong G, Liu Y, Wu T, Ye Y, Tong C. High-quality elliptical iron glycolate nanosheets: selective synthesis and chemical conversion into FexOy nanorings, porous nanosheets, and nanochains with enhanced visible-light photocatalytic activity. Nanoscale 2015; 7:16493-16503. [PMID: 26394606 DOI: 10.1039/c5nr03689e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper describes an original and facile polyol-mediated solvothermal synthesis of elliptical iron glycolate nanosheets (IGNSs) combined with precursor thermal conversion into γ-Fe2O3 and α-Fe2O3/γ-Fe2O3 porous nanosheets (PNSs), α-Fe2O3 nanochains (NCs), and elliptical Fe3O4 nanorings (NRs). The IGNSs were produced via the oxidation-reduction and co-precipitation reactions in the presence of iron(III) salts, ethylene glycol, polyethylene glycol, and ethylenediamine. Control over Fe(3+) concentration, temperature, and time can considerably modulate the size and phase of the products. The IGNSs can be transformed to γ-Fe2O3 and α-Fe2O3/γ-Fe2O3 PNSs, α-Fe2O3 NCs, and elliptical Fe3O4 NRs by heat treatment under various annealing temperatures and ambiences. The PNSs and NCs exhibited high soft magnetic properties and coercivity, respectively. Visible-light photocatalytic activity toward RhB in the presence of H2O2 by PNSs and NCs was phase-, SBET, size-, porosity-, and local structure-dependent, following the order: α-Fe2O3 NCs > α-Fe2O3/γ-Fe2O3 PNSs > γ-Fe2O3 PNSs > IGNSs. In particular, α-Fe2O3/γ-Fe2O3 PNSs possessed significantly enhanced photocatalytic activity with good recyclability and could be conveniently separated by an applied magnetic field because of high magnetization. We believe that the as-prepared α-Fe2O3/γ-Fe2O3 PNSs have potential practical use in waste water treatment and microwave absorption.
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Affiliation(s)
- Guoxiu Tong
- College of Chemistry and Life Sciences, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People's Republic of China.
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Zhang H, Huang F, Liu DL, Shi P. Highly efficient removal of Cr(VI) from wastewater via adsorption with novel magnetic Fe3O4@C@MgAl-layered double-hydroxide. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.05.026] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Tu JL, Ding MY, Zhang Q, Zhang YL, Wang CG, Wang TJ, Ma LL, Li XJ. Design of Carbon-Encapsulated Fe3O4Nanocatalyst with Enhanced Performance for Fischer-Tropsch Synthesis. ChemCatChem 2015. [DOI: 10.1002/cctc.201500332] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Safarzadeh H, Ebrahimi-Kahrizsangi R, Ghaderi M, Saffar-Talouri A. Investigation of solvothermal synthesis and formation mechanism of Fe2O3/C microspheres. Surf Engin Appl Electrochem 2015. [DOI: 10.3103/s1068375515040122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Wu QH, Qu B, Tang J, Wang C, Wang D, Li Y, Ren JG. An Alumina-Coated Fe3O4-Reduced Graphene Oxide Composite Electrode as a Stable Anode for Lithium-ion Battery. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.12.149] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhang X, Wu T, Zhang Y, Ng DHL, Zhao H, Wang G. Adsorption of Hg2+ by thiol functionalized hollow mesoporous silica microspheres with magnetic cores. RSC Adv 2015. [DOI: 10.1039/c5ra05184c] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Thiol functionalized hollow mesoporous silica spheres with magnetic cores were synthesized and found to be highly selective adsorbents of Hg2+.
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Affiliation(s)
- Xian Zhang
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Tianxing Wu
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Yunxia Zhang
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Dickon H. L. Ng
- Department of Physics
- The Chinese University of Hong Kong
- Hong Kong
- China
| | - Huijun Zhao
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
| | - Guozhong Wang
- Key Laboratory of Materials Physics
- Centre for Environmental and Energy Nanomaterials
- Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
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Abstract
A novel MOF-derived metallic cobalt-based catalyst for low-temperature CO oxidation was developed. This catalyst exhibited high catalytic activity even at a temperature as low as −30 °C and improved tolerance of moisture as compared to other Co-based materials.
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Affiliation(s)
- Xi Wang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wei Zhong
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Yingwei Li
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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Samadi A, Amjadi M. Magnetic Fe3O4@C nanoparticles modified with 1-(2-thiazolylazo)-2-naphthol as a novel solid-phase extraction sorbent for preconcentration of copper (II). Mikrochim Acta 2015; 182:257-64. [DOI: 10.1007/s00604-014-1327-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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41
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Peng GW, Ding DX, Xiao FZ, Wang XL, Hun N, Wang YD, Dai YM, Cao Z. Adsorption of uranium ions from aqueous solution by amine-group functionalized magnetic Fe3O4 nanoparticle. J Radioanal Nucl Chem 2014; 301:781-8. [DOI: 10.1007/s10967-014-3278-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Chen Z, Geng Z, Zhang Z, Ren L, Tao T, Yang R, Guo Z. Synthesis of Magnetic Fe3O4@C Nanoparticles Modified with -SO3H and -COOH Groups for Fast Removal of Pb2+, Hg2+, and Cd2+Ions. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301500] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhang X, He M, Liu JH, Liao R, Zhao L, Xie J, Wang R, Yang ST, Wang H, Liu Y. Fe3O4@C nanoparticles as high-performance Fenton-like catalyst for dye decoloration. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s11434-014-0439-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Wang L, Zhuo L, Zhang C, Zhao F. Supercritical Carbon Dioxide Assisted Deposition of Fe3O4Nanoparticles on Hierarchical Porous Carbon and Their Lithium-Storage Performance. Chemistry 2014; 20:4308-15. [DOI: 10.1002/chem.201304700] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Indexed: 11/10/2022]
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45
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Lin M, Huang H, Liu Z, Liu Y, Ge J, Fang Y. Growth-dissolution-regrowth transitions of Fe3O4 nanoparticles as building blocks for 3D magnetic nanoparticle clusters under hydrothermal conditions. Langmuir 2013; 29:15433-41. [PMID: 24256401 DOI: 10.1021/la403577y] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Magnetic nanoparticle clusters (MNCs) are a class of secondary structural materials that comprise chemically defined nanoparticles assembled into clusters of defined size. Herein, MNCs are fabricated through a one-pot solvothermal reaction featuring self-limiting assembly of building blocks and the controlled reorganization process. Such growth-dissolution-regrowth fabrication mechanism overcomes some limitations of conventional solvothermal fabrication methods with regard to restricted available feature size and structural complexity, which can be extended to other oxides (as long as one can be chelated by EDTA-2Na). Based on this method, the nanoparticle size of MNCs is tuned between 6.8 and 31.2 nm at a fixed cluster diameter of 120 nm, wherein the critical size for superparamagnetic-ferromagnetic transition is estimated from 13.5 to 15.7 nm. Control over the nature and secondary structure of MNCs gives an excellent model system to understand the nanoparticle size-dependent magnetic properties of MNCs. MNCs have potential applications in many different areas, while this work evaluates their cytotoxicity and Pb(2+) adsorption capacity as initial application study.
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Affiliation(s)
- Mouhong Lin
- Institute of Biomaterials, College of Sciences, South China Agricultural University , Guangzhou 510642, P. R. China
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Ye Y, Chen J, Ding Q, Lin D, Dong R, Yang L, Liu J. Sea-urchin-like Fe3O4@C@Ag particles: an efficient SERS substrate for detection of organic pollutants. Nanoscale 2013; 5:5887-5895. [PMID: 23698652 DOI: 10.1039/c3nr01273e] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Ag-coated sea-urchin-like Fe3O4@C core-shell particles can be synthesized by a facile one-step solvothermal method, followed by deposition of high-density Ag nanoparticles onto the carbon surface through an in situ growth process, respectively. The as-synthesized Ag-coated Fe3O4@C particles can be used as a surface-enhanced Raman scattering (SERS) substrate holding reproducible properties under an external magnetic force. The magnetic function of the particles allows concentrating the composite particles into small spatial regions, which can be exploited to decrease the amount of material per analysis while improving its SERS detection limit. In contrast to the traditional SERS substrates, the present Fe3O4@C@Ag particles hold the advantages of enrichment of organic pollutants for improving SERS detection limit and recycled utilization.
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Affiliation(s)
- Yingjie Ye
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
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Zhang H, Liu DL, Zeng LL, Li M. β-Cyclodextrin assisted one-pot synthesis of mesoporous magnetic Fe3O4@C and their excellent performance for the removal of Cr (VI) from aqueous solutions. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.02.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Chen Z, Xue Z, Chen L, Geng Z, Yang R, Chen L, Wang Z. One-pot template-free synthesis of water-dispersive Fe3O4@C nanoparticles for adsorption of bovine serum albumin. NEW J CHEM 2013. [DOI: 10.1039/c3nj00490b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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