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Citation: XIA Min, ZHAO Ran, GONG Xiao-li, QIN Jun-qi, WANG Han-mei, XIA Dong-sheng, WANG Dong. Mechanism for NOx removal over the bamboo charcoal supported BiOI/BiOCl composite photocatalyst with oxygen vacancy[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(12): 1522-1528. shu

Mechanism for NOx removal over the bamboo charcoal supported BiOI/BiOCl composite photocatalyst with oxygen vacancy

  • 1.

    School of Environmental Engineering, Wuhan Textile University, Wuhan 430200, China

  • 2.

    School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China

  • Corresponding author: ZHAO Ran, ranzhao.hust@gmail.com
  • Received Date: 4 July 2017
    Revised Date: 24 October 2017

    Fund Project: the Scientific Research Plan Project of Education Department of Hubei Q20151605Open Source Project of Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing STRZ2017005The project was supported by the Scientific Research Plan Project of Education Department of Hubei (Q20151605), Open Source Project of Hubei Key Laboratory of Advanced Textile Materials & Application (Fzxcl2017004), Open Source Project of Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing (STRZ2017005)Open Source Project of Hubei Key Laboratory of Advanced Textile Materials & Application Fzxcl2017004

Figures(8)

  • BiOI/BiOCl composite photocatalysts with oxygen vacancy (OV) were successfully synthesized by solvothermal method with bamboo charcoal (BC) as the carrier. The effect of temperature and light on the catalytic performance in the removal of NOx was considered and the photocatalytic reaction mechanism was investigated with the assistance of SEM, XPS, XRD, PL and Uv-vis analysis. The results indicated that optimum denitrification efficiency of 73% can be achieved under 30℃ and with a xenon lamp of 500 W. After the modification with the OV agents, the specific surface area and pore capacity of BC were greatly enhanced; the adsorption capacity was also improved and the functional groups of C=O and -COO can be efficiently broken into C-O functional groups. Meanwhile, the modification with OV agents can increase the photocatalytically active sites, reduce the recombination rate of electron hole pairs, and thus improve the efficiency of NO photocatalytic degradation.
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