Simulated solar driven catalytic degradation of psychiatric drug carbamazepine with binary BiVO4 heterostructures sensitized by graphene quantum dots

doi:10.1016/j.apcatb.2016.10.067

CAS OpenIR > 中科院上海应用物理研究所2011-2019年

	Simulated solar driven catalytic degradation of psychiatric drug carbamazepine with binary BiVO4 heterostructures sensitized by graphene quantum dots
	Tang, L; Wang, JJ; Jia, CT; Lv, GX; Xu, G; Li, WT; Wang, L; Zhang, JY; Wu, MH
	2017
Source Publication	APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN	0926-3373
Volume	205 Pages:587-596
Subtype	期刊论文
Abstract	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.
Keyword	Gqd/m-biva(4)/t-bivo4 Simulated Solar-light Photocatalysis Carbamazepine Mechanisms
DOI	10.1016/j.apcatb.2016.10.067
Indexed By	SCI
Language	英语
WOS ID	WOS:000393931000061
Citation statistics	Cited Times:39[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sinap.ac.cn/handle/331007/27443
Collection	中科院上海应用物理研究所2011-2019年
Recommended Citation GB/T 7714	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,2017,205:587-596.
APA	Tang, L.,Wang, JJ.,Jia, CT.,Lv, GX.,Xu, G.,...&Wu, MH.(2017).Simulated solar driven catalytic degradation of psychiatric drug carbamazepine with binary BiVO4 heterostructures sensitized by graphene quantum dots.APPLIED CATALYSIS B-ENVIRONMENTAL,205,587-596.
MLA	Tang, L,et al."Simulated solar driven catalytic degradation of psychiatric drug carbamazepine with binary BiVO4 heterostructures sensitized by graphene quantum dots".APPLIED CATALYSIS B-ENVIRONMENTAL 205(2017):587-596.

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