Fabrication of HRP/Bi_2WO_6 photoenzyme-coupled artificial catalytic system for efficiently degrading bisphenol A |
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| Authors: | Hongjun Dong Ning Song Ming Yan Huihui Wu Haibo Zhang Changchang Ma Yun Wang |
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| Affiliation: | 1. Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province, Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;2. Department of Chemistry, Dongguk University, Seoul 04620, Republic of Korea |
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| Abstract: | A novel photoenzyme-coupled artificial catalytic system is fabricated by immobilizing horseradish peroxidase(HRP) on the Bi_2WO_6 hollow nanospheres via a facile electrostatic self-assembly process. The obtained Bi_2WO_6/HRP sample not only improves the visible light harvest ability but also promotes the high-efficiency separation of charge carriers. More importantly, the photogenerated electrons and produced H_2O_2 on Bi_2WO_6 directly take part in redox cycle reactions of HRP to induce photoenzyme synergic catalytic effect. In consequence, the degradation activity of Bi_2WO_6/HRP is significantly improved relative to Bi_2WO_6 and HRP for removing bisphenol A(BPA) under the visible light irradiation.This work launches a feasible design strategy for exploiting photoenzyme-coupled artificial catalytic system with special structure to degrade organic pollutants in water efficiently. |
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| Keywords: | Photoenzyme-coupled Synergistic catalytic effect BPA degradation Reaction mechanism |
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