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Gao Y, Zhang Y, Han Z, Wang C, Zhang L, Qiu J. Two mixed-valent cerium oxo clusters: synthesis, structure, and self-assembly. Front Chem 2024; 12:1507834. [PMID: 39686981 PMCID: PMC11646716 DOI: 10.3389/fchem.2024.1507834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2024] [Accepted: 11/18/2024] [Indexed: 12/18/2024] Open
Abstract
Studies on cerium oxo clusters (CeOCs) are not only significant for understanding the redox and hydrolysis behaviors of Ce(III/IV) ions but also crucial for the rational synthesis of novel clusters and nanoceria with specific Ce(III)/Ce(IV) ratios. Here, two sets of reactions were conducted using cerium nitrate and H2O2-oxidized cerium nitrate, resulting in the formation of two distinct mixed-valent CeOCs [CeIII 4CeIV 10O14(OH)2(PhCO2)22(DMF)6] (Ce14) and [CeIII 2CeIV 22O28(OH)8(PhCO2)30(DMF)4] (Ce24C). These two clusters exhibit different structures and Ce(III)/Ce(IV) ratios, demonstrating the critical role of cerium oxidation states and the occurrence of redox reactions in cluster formation. Ce14 is the first tetradecanuclear CeOC with a novel structure, whereas Ce24C differed in its Ce(III)/Ce(IV) ratio, protonation levels of O atoms, and ligands from previously reported 24-nuclear CeOCs. Furthermore, various techniques were employed to investigate the formation process of these two clusters. X-ray photoelectron spectra (XPS) revealed that the white precipitates formed during the preparation of Ce14 contain Ce(III) ions, while the reddish-brown precipitates formed during the preparation of Ce24C contain a mixture of Ce(III) and Ce(IV) ions. These two precipitations were individually dissolved in N,N-Dimethylformamide (DMF). The evolution of solution color and ultraviolet-visible (UV-Vis) spectra over time revealed the gradual oxidation of partial Ce(III) ions by oxygen in the solution of the white precipitation. As Ce(IV) ions increased in this solution, time-resolved small angle X-ray scattering (SAXS) data demonstrated the self-assembly of the Ce14 clusters after 4 days. In contrast, SAXS data and UV-Vis spectra revealed the rapid assembly of Ce24C clusters within 2 h due to the initial coexistence of Ce(IV) and Ce(III) ions in the DMF solution of the reddish-brown precipitation. The continued reduction of partial Ce(IV) ions in this solution does not affect Ce24C clusters' formation and stability. Our studies expand the family of CeOCs and enhance our understanding of the effects of cerium's oxidation states on cluster formation.
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Affiliation(s)
- Yuan Gao
- School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, China
| | - Yang Zhang
- School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, China
| | - Zhe Han
- School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, China
| | - Chunhui Wang
- School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, China
| | - Lei Zhang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China
| | - Jie Qiu
- School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, China
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2
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Abedi Tameh F, Mohamed HEA, Aghababaee L, Akbari M, Alikhah Asl S, Javadi MH, Aucamp M, Cloete KJ, Soleimannejad J, Maaza M. In-vitro cytotoxicity of biosynthesized nanoceria using Eucalyptus camaldulensis leaves extract against MCF-7 breast cancer cell line. Sci Rep 2024; 14:17465. [PMID: 39075175 PMCID: PMC11286930 DOI: 10.1038/s41598-024-68272-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 07/22/2024] [Indexed: 07/31/2024] Open
Abstract
Cerium oxide nanoparticles possess unique properties that make them promising candidates in various fields, including cancer treatment. Among the proposed synthesis methods for CNPs, biosynthesis using natural extracts, offers an eco-friendly and convenient approach for producing CNPs, particularly for biomedical applications. In this study, a novel method of biosynthesis using the aqueous extract of Eucalyptus camaldulensis leaves was used to synthesize CNPs. Scanning electron microscopy and Transmission electron microscopy (TEM) techniques revealed that the synthesized CNPs exhibit a flower-like morphology. The particle size of CNPs obtained using Powder X-ray diffraction peaks and TEM as 13.43 and 39.25 nm. Energy-dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy confirmed the effect of biomolecules during the synthesis process and the formation of CNPs. The cytotoxicity of biosynthesized samples was evaluated using the MTT method demonstrating the potential of these samples to inhibit MCF-7 cancerous cells. The viability of the MCF-7 cell line conducted by live/dead imaging assay confirmed the MTT cytotoxicity method and indicated their potential to inhibit cancerous cells. Furthermore, the successful uptake of CNPs by MCF-7 cancer cells, as demonstrated by confocal microscopy, provides evidence that the intracellular pathway contributes to the anticancer activity of the CNPs. In general, results indicate that the biosynthesized CNPs exhibit significant cytotoxicity against the MCF-7 cancerous cell line, attributed to their high surface area.
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Affiliation(s)
- Fatemeh Abedi Tameh
- UNESCO-UNISA-iTLABS Africa Chair in Nanoscience and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 0003, South Africa.
- School of Chemistry, College of Science, University of Tehran, P.O. Box 141556455, Tehran, Iran.
| | - Hamza Elsayed Ahmed Mohamed
- UNESCO-UNISA-iTLABS Africa Chair in Nanoscience and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 0003, South Africa
| | - Leila Aghababaee
- Neuroscience Laboratory, Institute of Biochemistry and Biophysics (IBB), Bio Organic, University of Tehran, Tehran, 1417614335, Iran
| | - Mahmood Akbari
- UNESCO-UNISA-iTLABS Africa Chair in Nanoscience and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 0003, South Africa.
| | - Shervin Alikhah Asl
- UNESCO-UNISA-iTLABS Africa Chair in Nanoscience and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 0003, South Africa
| | - Mohammad Hasan Javadi
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155‑9516, Tehran, Iran
| | - Marique Aucamp
- School of Pharmacy, University of the Western Cape, Robert Sobukwe Drive, Bellville, 7130, Cape Town, South Africa
| | - Karen Jacqueline Cloete
- UNESCO-UNISA-iTLABS Africa Chair in Nanoscience and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 0003, South Africa
| | - Janet Soleimannejad
- School of Chemistry, College of Science, University of Tehran, P.O. Box 141556455, Tehran, Iran
| | - Malik Maaza
- UNESCO-UNISA-iTLABS Africa Chair in Nanoscience and Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria, 0003, South Africa
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3
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Development of green photocatalyst using empty fruit bunches from Elaeis guineensis for methylene blue degradation. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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4
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Brontowiyono W, AbdulHussein WA, Smaisim GF, Mahmoud MZ, Singh S, Lafta HA, Hussein SA, Kadhim MM, Mustafa YF, Aravindhan S. Annealing Temperature Effect on Structural, Magnetic Properties and Methyl Green Degradation of Fe2O3 Nanostructures. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2023; 48:375-382. [DOI: 10.1007/s13369-022-07118-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 06/28/2022] [Indexed: 11/30/2022]
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5
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Norouzi M, Fazeli A, Tavakoli O. Photocatalytic degradation of phenol under visible light using electrospun Ag/TiO2 as a 2D nano-powder: Optimizing calcination temperature and promoter content. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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6
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Biomolecules and microwaves directed fabrication of Ag/CeO2 nanocomposite: a versatile candidate for the degradation of textile dye mixtures and antibacterial studies. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04855-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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7
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Bahaloo-Horeh N, Mousavi SM. A novel green strategy for biorecovery of valuable elements along with enrichment of rare earth elements from activated spent automotive catalysts using fungal metabolites. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128509. [PMID: 35739687 DOI: 10.1016/j.jhazmat.2022.128509] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/25/2022] [Accepted: 02/15/2022] [Indexed: 06/15/2023]
Abstract
Metals recovery from spent automotive catalytic converters (SACCs) has gained great attention due to high metal content of SACCs and their potential to pollute the environment. This study presented a novel green strategy for treating SACCs using oxalic acid-enriched spent culture medium from Aspergillus niger cultivations. To enhance oxalic acid production, the Central Composite Design (CCD) was applied, which demonstrated that glucose (27.06 g/L), NaNO3 (0.9 g/L), disodium oxalate (7.7 g/L), MnSO4·H2O (0.28 g/L), and ethanol (0.65%(v/v)) were the optimum values leading to production of 15.3 g/L oxalic acid. The results of metals biorecovery with the fungal metabolites showed that pulp density of 15 g/L, temperature of 60 °C, and leaching time of 6 h resulted in the highest extraction of 99.1% Al, 99.3% Si, 82.2% Mn, 91.9% Zn, 17.6% Ba, 99.5% Fe, 92.2% Sr, 35.7% Ti, 60.9% Pt, and 73.7% Pd, as well as maximum enrichment of rare earth elements (REEs) in the residual powder. The EDX-mapping analysis indicated that the concentration of ∑REEs was nearly 8% in the initial waste powder, while it reached around 81% in the residual powder after bioleaching. The bioleaching mechanism was further analyzed by characterizing the bioleaching residues through XRD, FTIR, and FESEM analyses.
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Affiliation(s)
- Nazanin Bahaloo-Horeh
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran
| | - Seyyed Mohammad Mousavi
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran; Modares Environmental Research Institute, Tarbiat Modares University, Tehran, Iran.
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8
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Wang H, Yuan CG, Liu C, Duan X, Guo Q, Shen Y, Liu J, Chen Y. Microwave-assisted continuous flow phytosynthesis of silver nanoparticle/reduced graphene oxide composites and related visible light catalytic performance. J Environ Sci (China) 2022; 115:286-293. [PMID: 34969456 DOI: 10.1016/j.jes.2021.07.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/24/2021] [Accepted: 07/24/2021] [Indexed: 06/14/2023]
Abstract
The creation of an environmentally friendly synthesis method for silver nanomaterials (AgNPs) is an urgent concern for sustainable nanotechnology development. In the present study, a novel straightforward and green method for the preparation of silver nanoparticle/reduced graphene oxide (AgNP/rGO) composites was successfully developed through the combination of phytosynthesis, continuous flow synthesis and microwave-assistance. Oriental persimmon (Diospyros kaki Thunb.) extracts were used as both plant reducing and capping agents for fast online synthesis of AgNP/rGO composites. The experimental parameters were optimized and the morphologies of the prepared materials were investigated. The characterization results reveal that spherical AgNPs were quickly synthesized and uniformly dispersed on rGO sheets using the proposed online system. Fourier transform infrared spectroscopy analysis confirmed that phenols, flavonoids, and other substances in the plant extracts played a decisive role in the synthesis of AgNP/rGO composites. Using sodium borohydride (NaBH4) degradation of p-nitrophenol (4-NP) as a model, the catalytic activity of the prepared AgNP/rGO materials was evaluated. The complete degradation of 4-NP was achieved within 12 min through the use of AgNP/rGO materials, and the composite had a much better catalytic activity than the bare AgNPs and rGO had. Compared with the conventional chemical method, our online method is facile, fast, cost-efficient, and environmentally friendly.
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Affiliation(s)
- Houyu Wang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China
| | - Chun-Gang Yuan
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China; Wetland Research Center for Baiyangdian Lake, North China Electric Power University, Baoding 071000, China.
| | - Chenchen Liu
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China
| | - Xuelei Duan
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China
| | - Qi Guo
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China
| | - Yiwen Shen
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science & Engineering, North China Electric Power University, Baoding 071000, China
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yongsheng Chen
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Hussein MAM, Gunduz O, Sahin A, Grinholc M, El-Sherbiny IM, Megahed M. Dual Spinneret Electrospun Polyurethane/PVA-Gelatin Nanofibrous Scaffolds Containing Cinnamon Essential Oil and Nanoceria for Chronic Diabetic Wound Healing: Preparation, Physicochemical Characterization and In-Vitro Evaluation. Molecules 2022; 27:2146. [PMID: 35408546 PMCID: PMC9000402 DOI: 10.3390/molecules27072146] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 03/22/2022] [Accepted: 03/22/2022] [Indexed: 02/03/2023] Open
Abstract
In this study, a dual spinneret electrospinning technique was applied to fabricate a series of polyurethane (PU) and polyvinyl alcohol-gelatin (PVA/Gel) nanofibrous scaffolds. The study aims to enhance the properties of PU/PVA-Gel NFs loaded with a low dose of nanoceria through the incorporation of cinnamon essential oil (CEO). The as-prepared nCeO2 were embedded into the PVA/Gel nanofibrous layer, where the cinnamon essential oil (CEO) was incorporated into the PU nanofibrous layer. The morphology, thermal stability, mechanical properties, and chemical composition of the produced NF mats were investigated by STEM, DSC, and FTIR. The obtained results showed improvement in the mechanical, and thermal stability of the dual-fiber scaffolds by adding CEO along with nanoceria. The cytotoxicity evaluation revealed that the incorporation of CEO to PU/PVA-Gel loaded with a low dose of nanoceria could enhance the cell population compared to using pure PU/PVA-Gel NFs. Moreover, the presence of CEO could inhibit the growth rate of S. aureus more than E. coli. To our knowledge, this is the first time such nanofibrous membranes composed of PU and PVA-Gel have been produced. The first time was to load the nanofibrous membranes with both CEO and nCeO2. The obtained results indicate that the proposed PU/PVA-Gel NFs represent promising platforms with CEO and nCeO2 for effectively managing diabetic wounds.
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Affiliation(s)
- Mohamed Ahmed Mohamady Hussein
- Clinic of Dermatology, University Hospital of RWTH Aachen, 52074 Aachen, Germany;
- Department of Pharmacology, Medical Research Division, National Research Center, Dokki, Cairo 12622, Egypt
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey;
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Ali Sahin
- Department of Biochemistry, School of Medicine, Marmara University, Istanbul 34854, Turkey;
- Genetic and Metabolic Diseases Research and Investigation Center (GEMHAM), Marmara University, Istanbul 34854, Turkey
| | - Mariusz Grinholc
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk, 80307 Gdansk, Poland;
| | - Ibrahim Mohamed El-Sherbiny
- Nanomedicine Laboratory, Center for Materials Science (CMS), Zewail City of Science and Technology, 6th of October, Giza 12578, Egypt
| | - Mosaad Megahed
- Clinic of Dermatology, University Hospital of RWTH Aachen, 52074 Aachen, Germany;
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10
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Zhang Y, Qi G, Yao L, Huang L, Wang J, Gao W. Effects of Metal Nanoparticles and Other Preparative Materials in the Environment on Plants: From the Perspective of Improving Secondary Metabolites. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:916-933. [PMID: 35073067 DOI: 10.1021/acs.jafc.1c05152] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The influence of preparation material residues in wastewater and soil on plants has been paid more and more attention by researchers. Secondary metabolites play an important role in the application of plants. It was found that nanomaterials can increase the content of plant secondary metabolites in addition to their role in pharmaceutical preparations. For example, 800 mg/kg copper oxide nanoparticles (NPs) increased the content of p-coumaric acid in cucumber by 225 times. Nanoparticles can cause oxidative stress in plants, increase signal molecule, and upregulate the synthase gene expression, increasing the content of secondary metabolites. The increase of components such as polyphenols and total flavonoids may be related to oxidative stress. This paper reviews the application and mechanism of metal nanomaterials (Ag-NP, ZnO-NP, CeO2-NP, Cds-NP, Mn-NP, CuO-NP) in promoting the synthesis of secondary metabolites from plants. In addition, the effects of some other preparative materials (cyclodextrins and immobilized molds) on plant secondary metabolites are also involved. Finally, possible future research is discussed.
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Affiliation(s)
- Yanan Zhang
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - GeYuan Qi
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Lu Yao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Luqi Huang
- National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Juan Wang
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Wenyuan Gao
- Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin 300072, China
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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11
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Saadoon SJ, Jarosova M, Machek P, Kadhim MM, Ali MH, Khalaji AD. Methylene blue photodegradation using as‐synthesized
CeO
2
nanoparticles. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Marketa Jarosova
- Institute of Physic of the Czech Academy of Sciences Na Slovance Prague Czech Republic
| | - Pavel Machek
- Institute of Physic of the Czech Academy of Sciences Na Slovance Prague Czech Republic
| | - Mustafa M. Kadhim
- Department of Dentistry Kut University College Kut Iraq
- College of technical engineering The Islamic University Najaf Iraq
- Department of Pharmacy Osol Aldeen University College Baghdad Iraq
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Manjula N, Pulikkutty S, Chen TW, Chen SM, Liu X. Hexagon prism-shaped cerium ferrite embedded on GC electrode for electrochemical detection of antibiotic drug ofloxacin in biological sample. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Lou S, Chen Q, Wang W, Wang Y, Zhou S. Template-assisted synthesis of Ag/AgCl hollow microcubes and their composition-dependent photocatalytic activity for the degradation of phenol. RSC Adv 2021; 11:26311-26318. [PMID: 35479460 PMCID: PMC9037391 DOI: 10.1039/d1ra03569j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/13/2021] [Indexed: 01/16/2023] Open
Abstract
Plasmonic photocatalysts with hollow structures and tunable composition exhibit significant advantages due to their high efficiency in light collection and effective charge transfer across the tight contact heterojunction interface. Herein, hollow Ag/AgCl microcubes were developed by treating nanosheet-assembled hollow Ag microcubes with FeCl3, where a part of Ag at the interface could be in situ transformed and oxidized into AgCl. Equally, by adjusting the concentration of Fe3+ ions, Ag/AgCl hollow microcubes with different compositions could be easily achieved. Electron transfer was favored by a lot of tiny Ag/AgCl heterojunctions induced by the in situ oxidation of the multicrystalline Ag hollow microcube template containing a number of grain boundaries. The designed hollow Ag/AgCl microcubes exhibited strong visible-light adsorption owing to the surface plasmon resonance effect of Ag nanoparticles, in addition to the multiple light-reflections inside the hollow structure. The as-obtained products were then used as visible-light photocatalysts, where the results indicated that 91.6% of phenol was degraded within 150 min under visible light by the as-obtained sample with a Ag to AgCl ratio of 1 : 3. The superior visible-light photocatalytic activity resulted from the enhancement of the visible light-harvesting and the efficient charge separation at the Ag and AgCl contact interfaces.
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Affiliation(s)
- Shiyun Lou
- Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University Kaifeng 475004 PR China +86 371 22357375
| | - Qinglan Chen
- Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University Kaifeng 475004 PR China +86 371 22357375
| | - Wan Wang
- Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University Kaifeng 475004 PR China +86 371 22357375
| | - Yongqiang Wang
- Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University Kaifeng 475004 PR China +86 371 22357375
| | - Shaomin Zhou
- Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University Kaifeng 475004 PR China +86 371 22357375
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14
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Sabouri Z, Rangrazi A, Amiri MS, Khatami M, Darroudi M. Green synthesis of nickel oxide nanoparticles using Salvia hispanica L. (chia) seeds extract and studies of their photocatalytic activity and cytotoxicity effects. Bioprocess Biosyst Eng 2021; 44:2407-2415. [PMID: 34272979 DOI: 10.1007/s00449-021-02613-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 07/06/2021] [Indexed: 01/27/2023]
Abstract
The physical and chemical properties of Nickel oxide nanoparticles (NiO-NPs) have attracted the attention of many and in this regard, this study was performed to produce NiO-NPs by the means of Salvia hispanica L. (chia) seeds extract as the capping agent. Physical and morphological features of the obtained NiO-NPs were examined through the application of TGA, FTIR, UV-Vis, XRD, FESEM/EDAX/PSA, and VSM procedures. According to the FESEM/PSA images, the biosynthesized NiO-NPs contained a spherical shape and a size of about 30 nm, while the results of the EDAX study approved the existence of oxygen and nickel elements in the structure of this product. Furthermore, certain corresponding peaks to the crystal structure of NiO-NPs were observed throughout the XRD pattern. Next to the superparamagnetic behavior that was detected in the results of VSM analysis, the cytotoxicity effect of NiO-NPs was not reported to be dependent on concentration. Considering the high photocatalytic capacity along with the low cytotoxic effects of NiO-NPs, we can suggest the applicability of this product for various applications such as disease control and removal of residual toxins.
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Affiliation(s)
- Zahra Sabouri
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | | | - Mehrdad Khatami
- Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam, Iran
| | - Majid Darroudi
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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15
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Wang Q, Ji S, Xu Q, Shen L, Shi W. Preparation of PEO-based Cu2O/Bi2O2CO3 electrospun fibrous membrane toward enhanced photocatalytic degradation of chloramphenicol. JOURNAL OF MATERIALS SCIENCE 2021; 56:4599-4614. [DOI: 10.1007/s10853-020-05564-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/29/2020] [Indexed: 06/21/2023]
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16
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Synthesis and characterization of TiO2-based nanostructures via fluorine-free solvothermal method for enhancing visible light photocatalytic activity: Experimental and theoretical approach. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112834] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Zulfiqar M, Chowdhury S, Omar AA, Siyal AA, Sufian S. Response surface methodology and artificial neural network for remediation of acid orange 7 using TiO 2-P25: optimization and modeling approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:34018-34036. [PMID: 32557068 DOI: 10.1007/s11356-020-09674-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
The primary responsibility for continuously discharging toxic organic pollutants into water bodies and open environments is the increase in industrial and agricultural activities. Developing economical and suitable methods to continuously remove organic pollutants from wastewater is highly essential. The aim of the present research was to apply response surface methodology (RSM) and artificial neural networks (ANNs) for optimization and modeling of photocatalytic degradation of acid orange 7 (AO7) by commercial TiO2-P25 nanoparticles (TNPs). Dose of TNPs, pH, and AO7 concentration were selected as investigated parameters. RSM results reveal the reflective rate of AO7 removal of ~ 94.974% was obtained at pH 7.599, TNP dose of 0.748 g/L, and AO7 concentration of 28.483 mg/L. The resulting quadratic model is satisfactory with the highest coefficient of determination (R2) between the predicted and experimental data (R2 = 0.98 and adjusted R2 = 0.954). On the other hand, ANNs were successfully employed for modeling of AO7 degradation process. The proposed ANN model was absolutely fitted with experimental results producing the highest R2. Furthermore, root mean square error (RMSE), mean average deviation (MAD), absolute average relative error (AARE), and mean square error (MSE) were examined more to compare the predictive capabilities of ANN and RSM models. The experimental data was well fitted into pseudo-first-order and pseudo-second-order kinetics with more accuracy. Thermodynamic parameters, namely enthalpy, entropy, Gibbs' free energy, and activation energy, were also evaluated to suggest the nature of the degradation process. The increase of temperature was analyzed to be more suitable for the fast removal of AO7 over TNPs. Graphical abstract.
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Affiliation(s)
- Muhammad Zulfiqar
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610, Bandar Sri Iskandar, Perak, Malaysia.
| | - Sujan Chowdhury
- Chemical Engineering Department, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Abdul Aziz Omar
- Department of Computing and Information Systems, Sunway University, 47500, Petaling Jaya, Selangor, Malaysia
| | - Ahmer Ali Siyal
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610, Bandar Sri Iskandar, Perak, Malaysia
| | - Suriati Sufian
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610, Bandar Sri Iskandar, Perak, Malaysia.
- Centre of Innovative Nanostructures & Nanodevices (COINN), Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia.
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