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Kinetics, reaction pathways, and mechanism investigation for improved environmental remediation by 0D/3D CdTe/Bi2WO6 Z-scheme catalyst
Yang, Pengqi1,2; Chen, Chaowen1; Wang, Dongfang1,4; Ma, Huan3; Du, Yue1; Cai, Dongqing4; Zhang, Xin3; Wu, Zhengyan1
2021-05-15
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Corresponding AuthorCai, Dongqing(dqcai@dhu.edu.cn) ; Zhang, Xin(xinzhang@ahau.edu.cn) ; Wu, Zhengyan(zywu@ipp.ac.cn)
AbstractA novel 0D/3D CdTe quantum dots/Bi2WO6 (CTQDs/BWO) Z-scheme photocatalyst was designed to enhance photochemical energy conversion efficiency. Experimental results demonstrated that the CTQDs/BWO injected electron lifetime, interfacial carrier transfer efficiency, and visible light absorption ability were observably enhanced due to the quantum effect and Z-scheme heterojunction synergy. In particular, 1.0 % CTQDs/BWO displayed excellent tetracycline removal efficiency (91.45 %) and prominent E. coli photoinactivation under visible light. In addition, its tetracycline removal efficiency remained above 85 % after five cyclic experiments. Moreover, using density functional theory (DFT) calculations and LC-MS spectra, we deeply analyzed the photoinduced electron transfer pathways and photocatalytic reaction degradation pathways and proposed a Z-scheme heterojunction model. This work provides a novel strategy for designing efficient Z-scheme photo catalysts and exhibits promising prospects for utilizing photocatalysts to address water contaminants.
KeywordZ-scheme photocatalyst Quantum effect Photocatalytic disinfection Photodegradation CdTe quantum dots/Bi2WO6
DOI10.1016/j.apcatb.2021.119877
Indexed BySCI
Language英语
Funding ProjectScience and Technology Service Program of Chinese Academy of Sciences[KFJ-STSQYZD-115] ; National Key R&D Program of China[2018YFD0300903-4] ; Key R&D Program of Ningxia Province[2018BBF02021] ; Science and Technology Major Project of Anhui Province[17030701029] ; Fundamental Research Funds for the Central Universities[2232020D-22] ; Open Research Fund of Key Laboratory of High Magnetic Field and Ion Beam Physical Biology
Funding OrganizationScience and Technology Service Program of Chinese Academy of Sciences ; National Key R&D Program of China ; Key R&D Program of Ningxia Province ; Science and Technology Major Project of Anhui Province ; Fundamental Research Funds for the Central Universities ; Open Research Fund of Key Laboratory of High Magnetic Field and Ion Beam Physical Biology
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS IDWOS:000623243200002
PublisherELSEVIER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/120968
Collection中国科学院合肥物质科学研究院
Corresponding AuthorCai, Dongqing; Zhang, Xin; Wu, Zhengyan
Affiliation1.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Anhui Agr Univ, Natl Engn Lab Crop Stress Resistance Breeding, Hefei 230036, Anhui, Peoples R China
4.Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China
Recommended Citation
GB/T 7714
Yang, Pengqi,Chen, Chaowen,Wang, Dongfang,et al. Kinetics, reaction pathways, and mechanism investigation for improved environmental remediation by 0D/3D CdTe/Bi2WO6 Z-scheme catalyst[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,285.
APA Yang, Pengqi.,Chen, Chaowen.,Wang, Dongfang.,Ma, Huan.,Du, Yue.,...&Wu, Zhengyan.(2021).Kinetics, reaction pathways, and mechanism investigation for improved environmental remediation by 0D/3D CdTe/Bi2WO6 Z-scheme catalyst.APPLIED CATALYSIS B-ENVIRONMENTAL,285.
MLA Yang, Pengqi,et al."Kinetics, reaction pathways, and mechanism investigation for improved environmental remediation by 0D/3D CdTe/Bi2WO6 Z-scheme catalyst".APPLIED CATALYSIS B-ENVIRONMENTAL 285(2021).
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