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Highly efficient In-Mo(O,S)2 oxy-sulfide for degradation of organic pollutants under visible light irradiation: An example of photocatalyst on its dye selectivity.
Chemosphere. 2020 Sep; 254:126823.C

Abstract

Environmentally toxic organic pollutants, namely methylene blue (MB), neutral red (NR), Rhodamine B (RhB), and methyl orange (MO) dyes contain highly toxic, carcinogenic, non-biodegradable, and colored pigments which cause harm for humans and aquatic organisms even at low concentrations. To detoxify these toxic organic pollutants from the wastewater, the bimetallic solid solution-typed In-Mo(O,S)2 catalyst with various indium (In) contents were synthesized at low temperature through a simple precipitation method. The morphological, structural, chemical compositions, electrochemical and optical properties of the catalysts were thoroughly characterized. The photodegradation performance of the In-Mo(O,S)2 catalysts over the cationic, anionic and neutral dyes were studied under visible light irradiation. It has been observed that the photocatalytic activity was enhanced as In was added to the Mo(O,S)2 catalyst, and In-Mo(O,S)2-20 was found to be the best composition to completely degrade four organic dyes. The dye degradation had rate constant values of 9.5 × 10-2 min-1, 6.3 × 10-2 min-1, 4.4 × 10-2 min-1, and 15.7 × 10-1 min-1 for MB (20 ppm), NR (20 ppm), RhB (10 ppm), and MO (10 ppm) dyes, respectively. The active species for degradation of MB is different from those for RhB and MO. Single phase In-Mo(O,S)2-20 capable to degrade four kinds of dyes at a fast rate is a good photocatalyst.

Authors+Show Affiliations

Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan. Electronic address: dhkuo@mail.ntust.edu.tw.Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32334264

Citation

Kebede, Worku Lakew, et al. "Highly Efficient In-Mo(O,S)2 Oxy-sulfide for Degradation of Organic Pollutants Under Visible Light Irradiation: an Example of Photocatalyst On Its Dye Selectivity." Chemosphere, vol. 254, 2020, p. 126823.
Kebede WL, Kuo DH, Bekena FT, et al. Highly efficient In-Mo(O,S)2 oxy-sulfide for degradation of organic pollutants under visible light irradiation: An example of photocatalyst on its dye selectivity. Chemosphere. 2020;254:126823.
Kebede, W. L., Kuo, D. H., Bekena, F. T., & Duresa, L. W. (2020). Highly efficient In-Mo(O,S)2 oxy-sulfide for degradation of organic pollutants under visible light irradiation: An example of photocatalyst on its dye selectivity. Chemosphere, 254, 126823. https://doi.org/10.1016/j.chemosphere.2020.126823
Kebede WL, et al. Highly Efficient In-Mo(O,S)2 Oxy-sulfide for Degradation of Organic Pollutants Under Visible Light Irradiation: an Example of Photocatalyst On Its Dye Selectivity. Chemosphere. 2020;254:126823. PubMed PMID: 32334264.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Highly efficient In-Mo(O,S)2 oxy-sulfide for degradation of organic pollutants under visible light irradiation: An example of photocatalyst on its dye selectivity. AU - Kebede,Worku Lakew, AU - Kuo,Dong-Hau, AU - Bekena,Fekadu Tadesse, AU - Duresa,Lalisa Wakjira, Y1 - 2020/04/18/ PY - 2020/02/23/received PY - 2020/04/06/revised PY - 2020/04/15/accepted PY - 2020/4/26/pubmed PY - 2020/7/10/medline PY - 2020/4/26/entrez KW - Degradation KW - In-Mo(O,S)(2)-20 KW - Organic dyes KW - Photocatalyst KW - Solid solution SP - 126823 EP - 126823 JF - Chemosphere JO - Chemosphere VL - 254 N2 - Environmentally toxic organic pollutants, namely methylene blue (MB), neutral red (NR), Rhodamine B (RhB), and methyl orange (MO) dyes contain highly toxic, carcinogenic, non-biodegradable, and colored pigments which cause harm for humans and aquatic organisms even at low concentrations. To detoxify these toxic organic pollutants from the wastewater, the bimetallic solid solution-typed In-Mo(O,S)2 catalyst with various indium (In) contents were synthesized at low temperature through a simple precipitation method. The morphological, structural, chemical compositions, electrochemical and optical properties of the catalysts were thoroughly characterized. The photodegradation performance of the In-Mo(O,S)2 catalysts over the cationic, anionic and neutral dyes were studied under visible light irradiation. It has been observed that the photocatalytic activity was enhanced as In was added to the Mo(O,S)2 catalyst, and In-Mo(O,S)2-20 was found to be the best composition to completely degrade four organic dyes. The dye degradation had rate constant values of 9.5 × 10-2 min-1, 6.3 × 10-2 min-1, 4.4 × 10-2 min-1, and 15.7 × 10-1 min-1 for MB (20 ppm), NR (20 ppm), RhB (10 ppm), and MO (10 ppm) dyes, respectively. The active species for degradation of MB is different from those for RhB and MO. Single phase In-Mo(O,S)2-20 capable to degrade four kinds of dyes at a fast rate is a good photocatalyst. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/32334264/Highly_efficient_In_Mo_OS_2_oxy_sulfide_for_degradation_of_organic_pollutants_under_visible_light_irradiation:_An_example_of_photocatalyst_on_its_dye_selectivity_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(20)31016-X DB - PRIME DP - Unbound Medicine ER -