Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> Nanocomposites
Developing simple and effective synthetic strategies regarding the formation of heterostructure photocatalytic semiconductors remains an intense challenge in research matters. Uniform heterostructure cobalt oxide@meso–CN@MoS<sub>2</sub> (CoO@meso–CN@MoS<sub>2</sub>) photocata...
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MDPI AG
2020-06-01
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| author | Linjer Chen Thanh Binh Nguyen Yi-Li Lin Chung-Hsin Wu Jih-Hsing Chang Chiu-Wen Chen Cheng-Di Dong |
| author_facet | Linjer Chen Thanh Binh Nguyen Yi-Li Lin Chung-Hsin Wu Jih-Hsing Chang Chiu-Wen Chen Cheng-Di Dong |
| author_sort | Linjer Chen |
| collection | DOAJ |
| description | Developing simple and effective synthetic strategies regarding the formation of heterostructure photocatalytic semiconductors remains an intense challenge in research matters. Uniform heterostructure cobalt oxide@meso–CN@MoS<sub>2</sub> (CoO@meso–CN@MoS<sub>2</sub>) photocatalyst exhibits excellent photocatalytic redox performance for pollutant degradation under visible light. By adjusting the weight ratio of CoO@meso–CN and MoS<sub>2</sub>, we fabricated a CoO@meso–CN@MoS<sub>2</sub> heterostructure photocatalyst, and the established heterostructure between CoO@meso–CN and MoS<sub>2</sub> was indicated by various physicochemical and morphological characterizations. The photocatalytic response to the fabricated hybrid was determined by rodamine B (RhB), methylene blue (MB), and congo red (CR) degradation in aqueous solution under visible light, and the nanocomposites with a slight content consisting of CoO@meso–CN achieved better catalysis than pure MoS<sub>2</sub>. This finding confirmed the propriety of this heterostructure as a valuable photocatalyst. The experimental results demonstrated that the apparent reaction rate constant of the 3 wt% CoO@meso–CN modified MoS<sub>2</sub> was about two times higher than that of pure MoS<sub>2</sub>. The present work serves as a new approach for designing highly efficient visible light-induced heterostructure-based photocatalysts for environmental applications in the future. |
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| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T18:50:55Z |
| publishDate | 2020-06-01 |
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| series | Catalysts |
| spelling | doaj.art-03927b6457f44511a4e2d61415a925102023-11-20T05:08:13ZengMDPI AGCatalysts2073-43442020-06-0110772210.3390/catal10070722Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> NanocompositesLinjer Chen0Thanh Binh Nguyen1Yi-Li Lin2Chung-Hsin Wu3Jih-Hsing Chang4Chiu-Wen Chen5Cheng-Di Dong6Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, TaiwanDepartment of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, TaiwanDepartment of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81164, TaiwanDepartment of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, TaiwanDepartment of Environmental Engineering and Management, Chaoyang University of Technology, Wufong 41349, TaiwanDepartment of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, TaiwanDepartment of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, TaiwanDeveloping simple and effective synthetic strategies regarding the formation of heterostructure photocatalytic semiconductors remains an intense challenge in research matters. Uniform heterostructure cobalt oxide@meso–CN@MoS<sub>2</sub> (CoO@meso–CN@MoS<sub>2</sub>) photocatalyst exhibits excellent photocatalytic redox performance for pollutant degradation under visible light. By adjusting the weight ratio of CoO@meso–CN and MoS<sub>2</sub>, we fabricated a CoO@meso–CN@MoS<sub>2</sub> heterostructure photocatalyst, and the established heterostructure between CoO@meso–CN and MoS<sub>2</sub> was indicated by various physicochemical and morphological characterizations. The photocatalytic response to the fabricated hybrid was determined by rodamine B (RhB), methylene blue (MB), and congo red (CR) degradation in aqueous solution under visible light, and the nanocomposites with a slight content consisting of CoO@meso–CN achieved better catalysis than pure MoS<sub>2</sub>. This finding confirmed the propriety of this heterostructure as a valuable photocatalyst. The experimental results demonstrated that the apparent reaction rate constant of the 3 wt% CoO@meso–CN modified MoS<sub>2</sub> was about two times higher than that of pure MoS<sub>2</sub>. The present work serves as a new approach for designing highly efficient visible light-induced heterostructure-based photocatalysts for environmental applications in the future.https://www.mdpi.com/2073-4344/10/7/722heterostructuresphotodegradationorganic pollutantsnanocompositesreusability |
| spellingShingle | Linjer Chen Thanh Binh Nguyen Yi-Li Lin Chung-Hsin Wu Jih-Hsing Chang Chiu-Wen Chen Cheng-Di Dong Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> Nanocomposites Catalysts heterostructures photodegradation organic pollutants nanocomposites reusability |
| title | Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> Nanocomposites |
| title_full | Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> Nanocomposites |
| title_fullStr | Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> Nanocomposites |
| title_full_unstemmed | Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> Nanocomposites |
| title_short | Enhanced Heterogeneous Photodegradation of Organic Pollutants by a Visible Light Harvesting CoO@meso–CN@MoS<sub>2</sub> Nanocomposites |
| title_sort | enhanced heterogeneous photodegradation of organic pollutants by a visible light harvesting coo meso cn mos sub 2 sub nanocomposites |
| topic | heterostructures photodegradation organic pollutants nanocomposites reusability |
| url | https://www.mdpi.com/2073-4344/10/7/722 |
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