Fabrication of Ag3PO4/TiO2@molecular sieve (MS) ternary composites with remarkably enhanced visible light-responded photocatalytic activity and mechanism insight

doi:10.1016/j.envres.2020.109984

	Fabrication of Ag3PO4/TiO2@molecular sieve (MS) ternary composites with remarkably enhanced visible light-responded photocatalytic activity and mechanism insight
	Bian, Zhenzhong 1; Feng, Yali 1; Li, Haoran 2; Zhan, Jing 1
刊名	ENVIRONMENTAL RESEARCH
	2020-11-01
卷号	190 页码:12
关键词	Ag3PO4-TiO2 Molecular sieve Photocatalysis Formaldehyde Sodium isobutyl xanthate
ISSN号	0013-9351
DOI	10.1016/j.envres.2020.109984
英文摘要	In this study, Ag3PO4/TiO2@molecular sieve (MS) ternary composites were fabricated via in-situ deposition and hydrothermal growth method for photocatalytic degradation of formaldehyde and sodium isobutyl xanthate (SIBX) under visible light irradiation. XRD, PL, UV-vis, UPS, SEM-EDS and XPS techniques were adopted to characterize the composite. The results show that the MS material was indexed as zeolite P and Ag3PO4/TiO2 hybrid structure could improve the absorption of visible light and greatly inhibit the recombination of photogenerated charge carriers by introducing 3 times TiO2. After evaluating the photocatalytic activity and kinetics model, it is found that photocatalytic activity is consistent with the apparent first-order kinetic model. The Ag3PO4/TiO2-3@MS ternary composite under visible light irradiation appears the highest removal rate with 97.9% of formaldehyde and 96.7% of SIBX, respectively. Furthermore, the reusability of the photocatalyst was investigated by successive reuse. After five reuses, the removal rates reached 97.3% and 94.6% within 105 min for formaldehyde and SIBX, respectively. At last, the proposed mechanism of the photocatalytic reaction and the degradation mutes of formaldehyde and SIBX were systematically discussed.
资助项目	China Ocean Mineral Resources RD Association[DY135-B2-15] ; Major Science and Technology Program for Water Pollution Control and Treatment[2015ZX07205-003] ; National Natural Science Foundation of China[21176242] ; National Natural Science Foundation of China[21176026]
WOS关键词	GRAPHENE OXIDE ; EFFICIENT PHOTODEGRADATION ; AQUEOUS-SOLUTION ; METHYL-ORANGE ; COAL GANGUE ; AZO DYES ; DEGRADATION ; AG3PO4 ; TIO2 ; DECOMPOSITION
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000656320000003
资助机构	China Ocean Mineral Resources RD Association ; Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49145]
专题	中国科学院过程工程研究所
通讯作者	Feng, Yali
作者单位	1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Bian, Zhenzhong,Feng, Yali,Li, Haoran,et al. Fabrication of Ag3PO4/TiO2@molecular sieve (MS) ternary composites with remarkably enhanced visible light-responded photocatalytic activity and mechanism insight[J]. ENVIRONMENTAL RESEARCH,2020,190:12.
APA	Bian, Zhenzhong,Feng, Yali,Li, Haoran,&Zhan, Jing.(2020).Fabrication of Ag3PO4/TiO2@molecular sieve (MS) ternary composites with remarkably enhanced visible light-responded photocatalytic activity and mechanism insight.ENVIRONMENTAL RESEARCH,190,12.
MLA	Bian, Zhenzhong,et al."Fabrication of Ag3PO4/TiO2@molecular sieve (MS) ternary composites with remarkably enhanced visible light-responded photocatalytic activity and mechanism insight".ENVIRONMENTAL RESEARCH 190(2020):12.