Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation
A series of Bi2S3-BiOCl composites with two-dimensional (2D) square-like structures were prepared via a two-step anion exchange route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and diffuse reflectance spectra (DRS) were used to investigate t...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-10-01
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| Series: | Water Science and Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674237017301096 |
| _version_ | 1811337748031733760 |
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| author | Jing-jing Xu Jing-wen Yang Pu Zhang Quan Yuan Yan-hong Zhu Yu Wang Miao-miao Wu Zheng-mei Wang Min-dong Chen |
| author_facet | Jing-jing Xu Jing-wen Yang Pu Zhang Quan Yuan Yan-hong Zhu Yu Wang Miao-miao Wu Zheng-mei Wang Min-dong Chen |
| author_sort | Jing-jing Xu |
| collection | DOAJ |
| description | A series of Bi2S3-BiOCl composites with two-dimensional (2D) square-like structures were prepared via a two-step anion exchange route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and diffuse reflectance spectra (DRS) were used to investigate the properties of the as-prepared Bi2S3-BiOCl heterostructures. The coupling of BiOCl and Bi2S3 induced enhanced photoabsorption efficiency and bandgap narrowing. A reactive brilliant red X-3B dye was used as a contaminant to test the photocatalytic activity of the obtained Bi2S3-BiOCl samples under visible light irradiation. The sample Bi2S3-BiOCl with a mass ratio of 8:4 exhibited the highest photodegradation efficiency, which was six times higher than that of pure BiOCl. In addition, a mechanism for the enhancement of photocatalytic activity is proposed. |
| first_indexed | 2024-04-13T17:59:27Z |
| format | Article |
| id | doaj.art-02fc1a48e3464cf8951cc0bd9709da24 |
| institution | Directory Open Access Journal |
| issn | 1674-2370 |
| language | English |
| last_indexed | 2024-04-13T17:59:27Z |
| publishDate | 2017-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Water Science and Engineering |
| spelling | doaj.art-02fc1a48e3464cf8951cc0bd9709da242022-12-22T02:36:17ZengElsevierWater Science and Engineering1674-23702017-10-0110433433910.1016/j.wse.2017.12.010Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradationJing-jing Xu0Jing-wen Yang1Pu Zhang2Quan Yuan3Yan-hong Zhu4Yu Wang5Miao-miao Wu6Zheng-mei Wang7Min-dong Chen8Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaA series of Bi2S3-BiOCl composites with two-dimensional (2D) square-like structures were prepared via a two-step anion exchange route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and diffuse reflectance spectra (DRS) were used to investigate the properties of the as-prepared Bi2S3-BiOCl heterostructures. The coupling of BiOCl and Bi2S3 induced enhanced photoabsorption efficiency and bandgap narrowing. A reactive brilliant red X-3B dye was used as a contaminant to test the photocatalytic activity of the obtained Bi2S3-BiOCl samples under visible light irradiation. The sample Bi2S3-BiOCl with a mass ratio of 8:4 exhibited the highest photodegradation efficiency, which was six times higher than that of pure BiOCl. In addition, a mechanism for the enhancement of photocatalytic activity is proposed.http://www.sciencedirect.com/science/article/pii/S1674237017301096PhotocatalysisBi2S3BiOClVisible lightHeterostructure |
| spellingShingle | Jing-jing Xu Jing-wen Yang Pu Zhang Quan Yuan Yan-hong Zhu Yu Wang Miao-miao Wu Zheng-mei Wang Min-dong Chen Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation Water Science and Engineering Photocatalysis Bi2S3 BiOCl Visible light Heterostructure |
| title | Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation |
| title_full | Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation |
| title_fullStr | Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation |
| title_full_unstemmed | Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation |
| title_short | Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation |
| title_sort | preparation of 2d square like bi2s3 biocl heterostructures with enhanced visible light driven photocatalytic performance for dye pollutant degradation |
| topic | Photocatalysis Bi2S3 BiOCl Visible light Heterostructure |
| url | http://www.sciencedirect.com/science/article/pii/S1674237017301096 |
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