4.7 Article

The band structure control of visible-light-driven rGO/ZnS-MoS2 for excellent photocatalytic degradation performance and long-term stability

期刊

CHEMICAL ENGINEERING JOURNAL
卷 350, 期 -, 页码 248-256

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.05.182

关键词

rGO/ZnS-MoS(2)catalyst; Visible-light photocatalytic activity; Industrial wastewater treatment; COD removal

资金

  1. Natural Science Foundation of China [51741806, 51178213, 51238002]
  2. National Science Fund for Excellent Young Scholars [51422807]
  3. Department of Education Fund of Jiangxi Province [GJJ150742]
  4. Natural Science Foundation of Jiangxi Province [20161BAB206117]
  5. Science Fund for Excellent Young Scholars of Jiangxi Province [20122BAB213014]
  6. Open fund by Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle [ES201780294]

向作者/读者索取更多资源

ZnS-MoS2 solid solution anchored on reduced graphene oxide sheet (rGO/ZnS-MoS2) was explored as novel visible-light-driven photocatalysts, and synthesized by solvent thermal method. The light absorption intensity of rGO/ZnS-MoS2 was greatly strengthened, and rGO/ZnS-MoS2 possess modulated continuous band gaps from 3.47 to 3.56 eV by changing the Zn/Mo ratios and rGO content. Their photocatalytic activities for 2-nitrophenol degradation are dependent on the chemical composition, and the optimal 11% rGO/ZnS-MoS2 possessed the highest photocatalytic performance, which could be attributed to the most efficient charge separation, the largest specific area, and its optimized band structure. Moreover, 11% rGO/ZnS-MoS2 can effectively treat real industrial effluent with 74.05% COD removal, and maintain long-term stability without obvious decline after five use cycle.

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