Mechanism for NO<sub><i>x</i></sub> removal over the bamboo charcoal supported BiOI/BiOCl composite photocatalyst with oxygen vacancy

XIA Min; ZHAO Ran; GONG Xiao-li; QIN Jun-qi; WANG Han-mei; XIA Dong-sheng; WANG Dong

Volume 45 Issue 12

Dec. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(12): 1522-1528

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.

Citation:

XIA Min, ZHAO Ran, GONG Xiao-li, QIN Jun-qi, WANG Han-mei, XIA Dong-sheng, WANG Dong. Mechanism for NO_x 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.

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Mechanism for NO_x 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

Funds:

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

More Information

Corresponding author: ZHAO Ran, Tel:15271863943, E-mail:ranzhao.hust@gmail.com
Received Date: 2017-07-04
Rev Recd Date: 2017-10-24

Available Online: 2021-01-23

Publish Date: 2017-12-10

Abstract

Abstract

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 NO_x 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.
- photocatalysis,
- oxygen vacancy,
- NO degradation,
- BiOI,
- BiOCl,
- bamboo charcoal

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References(26)

References

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