화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.46, 416-425, February, 2017
DOI10.1016/j.jiec.2016.11.012  Export Citation
Photocatalytic oxidation of gas-phase Hg0 by carbon spheres supported visible-light-driven CuO-TiO2
Jiang Wu†, Chaoen Li1, Xiantuo Chen, Jing Zhang, Lili Zhao, Tianfang Huang, Tao Hu, Chong Zhang, Bu Ni, Xiao Zhou, Pankun Liang, and Wenbo Zhang
  • College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
  • 1School of Mechanical Engineering, Tongji University, Shanghai 201804, China
E-mail:
A simplified approach for the fabrication of CuO/TiO2@C is demonstrated. In this study, low cost CuO/TiO2@C photocatalysts (CSs loading 0.25-2 wt.%) were prepared, characterized and evaluated for gasphase Hg0 oxidation. The obtained CuO/TiO2@C photocatalysts were used to remove gaseous elemental mercury under UV light and LED respectively, and the optimum doping of content of CSs was determined. The results showed that the CuO/TiO2@C photocatalysts were highly efficient in oxidizing Hg0, reaching above 64% when the CSs doping reached 0.5 wt.%. We have proposed that the probable mechanism by which CuO/TiO2@C photocatalysts remove gaseous elemental mercury: with CSs doping, CSs can act as sensitizer and transfer electrons to the semiconductors, triggering the formation of very reactive radicals to improve photocatalytic efficiency.
Keywords:Carbon spheres;TiO2;CuO;Photocatalysis;Gas-phase Hg0
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