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Synthesis of silver phosphate/graphene oxide composite and its enhanced visible light photocatalytic mechanism and degradation pathways of tetrabromobisphenol A
Zhang, Xinyi1; Zhang, Huixuan1; Xiang, Yanying1; Hao, Sibei1; Zhang, Yuxin1; Guo, Ruonan1; Cheng, Xiuwen1,2; Xie, Mingzheng1; Cheng, Qingfeng3; Li, Bo1,2
2018-01-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
Volume342Pages:353-363
SubtypeArticle
AbstractIn the present study, silver phosphate/graphene oxide (Ag3PO4/GO) composite was synthesized by ultrasound-precipitation processes. Afterwards, physicochemical properties of the resulting samples were studied through scanning electron microscope, transmission electron microscope, X-ray diffraction, N-2 adsorption/desorption, UV-vis diffuse reflectance spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, surface photovoltage spectroscopy and photoelectrochemical measurements. Results indicated that spherical Ag3PO4 displayed an average diameter of 150 nm and body-centered cubic crystal phase, which was integrated with GO. In addition, the visible light absorbance, charge separation efficiency and lifetime of Ag3PO4 were significantly improved by integration with GO. In addition, Ag3PO4/GO composite was applied to decompose tetrabromosphenol A (TBBPA) in water body. It was found that TBBPA could be completely decomposed within 60 min illumination. Furthermore, several scavenger experiments were conducted to distinguish the contribution of reactive species to the photoctalytic efficiency. Moreover, the enhanced visible light mechanism of Ag3PO4/GO was proposed and discussed. Eventually, several PC decomposition pathways of TBBPA were identified including directly debromination and oxidation, and subsequently further oxidation and hydroxylation processes. (C) 2017 Elsevier B.V. All rights reserved.
KeywordAg3po4/go Visible Light Tetrabromobisphenol a Photocatalysis Mechanism
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
WOS KeywordAG3PO4 SUB-MICROCRYSTALS ; REDUCED GRAPHENE OXIDE ; PHOTOGENERATED CHARGES ; TIO2 ; STABILITY ; PERFORMANCE ; NANOCOMPOSITES ; IRRADIATION ; DICLOFENAC ; CATALYST
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000414880800038
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6269
Collection青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
Affiliation1.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xinning Rd 18, Xining 810008, Qinghai, Peoples R China
3.Chengdu Univ Informat Technol, Coll Resources & Environm, Chengdu 610225, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xinyi,Zhang, Huixuan,Xiang, Yanying,et al. Synthesis of silver phosphate/graphene oxide composite and its enhanced visible light photocatalytic mechanism and degradation pathways of tetrabromobisphenol A[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,342:353-363.
APA Zhang, Xinyi.,Zhang, Huixuan.,Xiang, Yanying.,Hao, Sibei.,Zhang, Yuxin.,...&Li, Bo.(2018).Synthesis of silver phosphate/graphene oxide composite and its enhanced visible light photocatalytic mechanism and degradation pathways of tetrabromobisphenol A.JOURNAL OF HAZARDOUS MATERIALS,342,353-363.
MLA Zhang, Xinyi,et al."Synthesis of silver phosphate/graphene oxide composite and its enhanced visible light photocatalytic mechanism and degradation pathways of tetrabromobisphenol A".JOURNAL OF HAZARDOUS MATERIALS 342(2018):353-363.
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