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Fabrication of Ag3PO4/TiO2@molecular sieve (MS) ternary composites with remarkably enhanced visible light-responded photocatalytic activity and mechanism insight
Bian, Zhenzhong1; Feng, Yali1; Li, Haoran2; Zhan, Jing1
2020-11-01
Source PublicationENVIRONMENTAL RESEARCH
ISSN0013-9351
Volume190Pages:12
AbstractIn 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.
KeywordAg3PO4-TiO2 Molecular sieve Photocatalysis Formaldehyde Sodium isobutyl xanthate
DOI10.1016/j.envres.2020.109984
Language英语
WOS KeywordGRAPHENE OXIDE ; EFFICIENT PHOTODEGRADATION ; AQUEOUS-SOLUTION ; METHYL-ORANGE ; COAL GANGUE ; AZO DYES ; DEGRADATION ; AG3PO4 ; TIO2 ; DECOMPOSITION
Funding ProjectChina 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 Research AreaEnvironmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS SubjectEnvironmental Sciences ; Public, Environmental & Occupational Health
Funding OrganizationChina Ocean Mineral Resources RD Association ; Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China
WOS IDWOS:000656320000003
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49146
Collection中国科学院过程工程研究所
Corresponding AuthorFeng, Yali
Affiliation1.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
Recommended Citation
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.
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