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Bouakaz H, Abbas M, Benallal S, Brahimi R, Trari M. Semiconducting and Electrochemical Properties of the Spinel FeCo2O4 Synthetized by Co-precipitation. Application to H2 production Under Visible Light. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Bagtache R, Tartaya S, Djaballah A, Trari M. Photocatalytic performance of KCoPO4 for the methyl violet oxidation. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Fast and non-selective photodegradation of basic yellow 28, malachite green, tetracycline, and sulfamethazine using a nanosized ZnO synthesized from zinc ore. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02232-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Physical and photo-electrochemical study of β′-Mn3(PO4)2 and its application to photodegradation of methyl violet under visible irradiation. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05164-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Fatimah I, Purwiandono G, Citradewi PW, Sagadevan S, Oh WC, Doong RA. Influencing Factors in the Synthesis of Photoactive Nanocomposites of ZnO/SiO 2-Porous Heterostructures from Montmorillonite and the Study for Methyl Violet Photodegradation. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3427. [PMID: 34947775 PMCID: PMC8708840 DOI: 10.3390/nano11123427] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 12/05/2022]
Abstract
In this work, photoactive nanocomposites of ZnO/SiO2 porous heterostructures (PCHs) were prepared from montmorillonite clay. The effects of preparation methods and Zn content on the physicochemical features and photocatalytic properties were investigated. Briefly, a comparison of the use of hydrothermal and microwave-assisted methods was done. The Zn content was varied between 5 and 15 wt% and the characteristics of the nanomaterials were also examined. The physical and chemical properties of the materials were characterized using X-ray diffraction, diffuse-reflectance UV-Vis, X-ray photoelectron spectroscopy, and gas sorption analyses. The morphology of the synthesized materials was characterized through scanning electron microscopy and transmission electron microscopy. The photocatalytic performance of the prepared materials was quantified through the photocatalytic degradation of methyl violet (MV) under irradiation with UV and visible light. It was found that PCHs exhibit greatly improved physicochemical characteristics as photocatalysts, resulting in boosting photocatalytic activity for the degradation of MV. It was found that varied synthesis methods and Zn content strongly affected the specific surface area, pore distribution, and band gap energy of PCHs. In addition, the band gap energy was found to govern the photoactivity. Additionally, the surface parameters of the PCHs were found to contribute to the degradation mechanism. It was found that the prepared PCHs demonstrated excellent photocatalytic activity and reusability, as seen in the high degradation efficiency attained at high concentrations. No significant changes in activity were seen until five cycles of photodegradation were done.
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Affiliation(s)
- Is Fatimah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta 55584, Indonesia; (G.P.); (P.W.C.)
| | - Gani Purwiandono
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta 55584, Indonesia; (G.P.); (P.W.C.)
| | - Putwi Widya Citradewi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta 55584, Indonesia; (G.P.); (P.W.C.)
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Won-Chun Oh
- Department of Advanced Materials Science and Engineering, Hanseo University, Seosan-si 356-706, Chungnam, Korea
| | - Ruey-an Doong
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, 101, Sec. 2, Kuang Fu Road, Hsinchu 30013, Taiwan;
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