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题名:
Simulated solar driven catalytic degradation of psychiatric drug carbamazepine with binary BiVO4 heterostructures sensitized by graphene quantum dots
作者: Tang, L; Wang, JJ; Jia, CT; Lv, GX; Xu, G; Li, WT; Wang, L; Zhang, JY; Wu, MH
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
出版日期: 2017
卷号: 205, 页码:587-596
关键词: GQD/m-BiVa(4)/t-BiVO4 ; Simulated solar-light ; Photocatalysis ; Carbamazepine ; Mechanisms
DOI: 10.1016/j.apcatb.2016.10.067
文章类型: 期刊论文
英文摘要: Herein, solar-driven GQDs loaded BiVO4 heterostructure catalysts were fabricated and employed to degradate carbamazepine (CBZ) under simulated solar light. The as-prepared ternary catalysts (GQD/m-BiVO4/t-BiVO4) were thoroughly characterized by TEM, HRTEM, XRD, XPS, UV-vis, Raman and PL. The characterization results demonstrated that GQDs are well-dispersed on binary BiVO4 support, and the optical properties of the composites are improved with GQDs loaded. The photocatalytic activities of the novel composite catalysts were significantly increased by incorporation of GQDs on original BiVO4 semiconductor. In particular, the 1.0 wt% GQD loaded catalysts exhibited the highest photocatalytic activity for CBZ, and the mineralization degree of CBZ with the catalysts could achieve more than 95%. In addition, the transformation products (TPs) of CBZ during the catalysis processes were tentatively identified, and hydroxyl radicals were regarded as the predominant active species. From the results of density functional theory (DFT) calculations and evolution of TPs, hydroxylation and cleavage of amide group on the heterocycle may be the main initial photocatalytic degradation channels for CBZ under the catalysis of GQD/BiVO4. (C) 2016 Published by Elsevier B.V.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000393931000061
ISSN号: 0926-3373
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27443
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Tang, L,Wang, JJ,Jia, CT,et al. Simulated solar driven catalytic degradation of psychiatric drug carbamazepine with binary BiVO4 heterostructures sensitized by graphene quantum dots[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017-01-01,205:587-596.
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