Highly enhanced photocatalytic properties of ZnS nanowires–graphene nanocomposites
作者： Jian Cao , Qianyu Liu , Donglai Han , Shuo Yang , Jinghai Yang
DOI: 10.1039/C4RA04164J
关键词:
摘要: ZnS nanowires (NWs)–graphene (GR) nanocomposites were successfully synthesized via an easy electrostatic self-assembly method. The results showed that NWs well dispersed on the surface of graphene nanosheets, forming ZnS–GR nanocomposites. photoluminescence intensity exhibited a clear quenching in comparison with NWs. used as photocatalysts for degradation methylene blue (MB) under UV light irradiation. After irradiation 1 h, efficiency was 21.69% NWs, 31.52% ZnS–0.5 wt% GR, 58.69% ZnS–3 88.33% ZnS–5 GR and 80.74% ZnS–7 indicating had highest photocatalytic activity. kinetic rate constant about 16 times higher than mechanism highly enhanced properties attributed to efficient separation photogenerated electron–hole pairs high specific area graphene.
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Yang Yang, Tianxi Liu, Fabrication and characterization of graphene oxide/zinc oxide nanorods hybrid Applied Surface Science. ,vol. 257, pp. 8950- 8954 ,(2011) , 10.1016/J.APSUSC.2011.05.070
Jili Wu, Xiaoping Shen, Lei Jiang, Kun Wang, Kangmin Chen, Solvothermal synthesis and characterization of sandwich-like graphene/ZnO nanocomposites Applied Surface Science. ,vol. 256, pp. 2826- 2830 ,(2010) , 10.1016/J.APSUSC.2009.11.034
Shugang Pan, Xiaoheng Liu, ZnS-Graphene nanocomposite: Synthesis, characterization and optical properties Journal of Solid State Chemistry. ,vol. 191, pp. 51- 56 ,(2012) , 10.1016/J.JSSC.2012.02.048
Jiaguo Yu, Tingting Ma, Shengwei Liu, Enhanced photocatalytic activity of mesoporous TiO2 aggregates by embedding carbon nanotubes as electron-transfer channel Physical Chemistry Chemical Physics. ,vol. 13, pp. 3491- 3501 ,(2011) , 10.1039/C0CP01139H
Xuelian Yu, Guangjin Zhang, Hongbin Cao, Xiaoqiang An, Yun Wang, Zhongjun Shu, Xiaoli An, Fei Hua, ZnO@ZnS hollow dumbbells–graphene composites as high-performance photocatalysts and alcohol sensors New Journal of Chemistry. ,vol. 36, pp. 2593- 2598 ,(2012) , 10.1039/C2NJ40770A
Zi-Rong Tang, Yanhui Zhang, Yi-Jun Xu, A facile and high-yield approach to synthesize one-dimensional CeO2 nanotubes with well-shaped hollow interior as a photocatalyst for degradation of toxic pollutants RSC Advances. ,vol. 1, pp. 1772- 1777 ,(2011) , 10.1039/C1RA00518A
Jin Young Lee, Dae Sung Kim, Jeunghee Park, Chemical Conversion Reaction between CdS Nanobelts and ZnS Nanobelts by Vapor Transport Chemistry of Materials. ,vol. 19, pp. 4663- 4669 ,(2007) , 10.1021/CM070814F
Yanhui Zhang, Nan Zhang, Zi-Rong Tang, Yi-Jun Xu, Graphene Transforms Wide Band Gap ZnS to a Visible Light Photocatalyst. The New Role of Graphene as a Macromolecular Photosensitizer ACS Nano. ,vol. 6, pp. 9777- 9789 ,(2012) , 10.1021/NN304154S
Hamid Reza Rajabi, Omid Khani, Mojtaba Shamsipur, Vahid Vatanpour, High-performance pure and Fe3+-ion doped ZnS quantum dots as green nanophotocatalysts for the removal of malachite green under UV-light irradiation. Journal of Hazardous Materials. pp. 370- 378 ,(2013) , 10.1016/J.JHAZMAT.2013.02.007
Min-Quan Yang, Yi-Jun Xu, Selective photoredox using graphene-based composite photocatalysts Physical Chemistry Chemical Physics. ,vol. 15, pp. 19102- 19118 ,(2013) , 10.1039/C3CP53325E