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| Preparation and photocatalytic property of carbon nanotubes/BiOBr composite |
| ZHAO Hong-fei1,2, CHEN Lin1,2, HE Feng-ting1,2, QIN Chu-shuo1, WANG Shuai-jun1,3, ZHAO Chao-cheng1,2, DONG Pei1,2, WANG Yi-xuan1,2, QIAO Shuai1,2, GAO Hai-tao4 |
1. College of Chemical Engineering, China University of Petroleum(East China), Qingdao 266580, China;
2. State Key Laboratory of Petroleum Pollution Control and Treatment, Beijing 102206, China;
3. School of Engineering, Edith Cowan University, Joondalup WA 6027, Australia;
4. Transportation Surveillence and Emergency Response Center of Shan Dong Province, Jinan 250002, China |
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Abstract Trace amount multi-walled carbon nanotubes (MWCNT) modified BiOBr were successfully fabricated via a one-step solvothermal method for efficient and stable degradation of tetracycline hydrochloride (TC). The MWCNT/BiOBr photocatalysts exhibited excellent photocatalytic with low PL intensity, high photocurrent, and small EIS arc at the optimal loading amount of MWCNT 0.01mg (0.001wt%), The significant enhancement of as-prepared MWCNT/BiOBr may be assigned to the high capture electron capability of MWCNT, which not only enhance the absorption of lights but also accelerate the separation of photogenerated charge carriers. Based on the trapping experiment and electron spin resonance (ESR), the possible mechanism of enhancing the photocatalytic activity for the composites was also proposed, in which the ·O2- was deemed to the primary active oxidants.
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Received: 11 April 2019
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