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Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light
Zhang, Xiao-Yu1,2; Wang, Jing-Jing3; Li, Ping3; Tan, Zhao-Yi1; Zeng, Jun-Hui1; He, Yan-Rong1; Habibul, Nuzahat2
2022-01-15
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume428Pages:10
AbstractIn the present research, WO3/g-C3N4 composites were prepared and used for the photocatalytic reduction of U (VI). The coupling of WO3 and g-C3N4 leads to the formation of the Z-scheme type-heterojunction structure of WO3/g-C3N4, enhancing the visible-light absorption, the separation efficiency of photo-generated carriers, and subsequently the photocatalytic activity. Compared with WO3 and g-C3N4, the as-prepared WO3/g-C3N4 composites displayed a high photocatalytic performance for U(VI) removal under pH 5.0-6.0. The maximum U(VI) removal efficiency was obtained on WO3/g-C3N4(1:6), which was 1.83- and 4.58-times fold than g-C3N4 and WO3, respectively. The maximum amount of U(VI) removed by WO3/g-C3N4 composite reached 2250 mg/g. The TEM images, XPS spectrum, and XRD spectra confirmed that the U(VI) was photo-reduced to U(IV) in the form of UO2. ESR spin trapping and scavenging tests showed that center dot O-2(-) was the dominating active component for U(VI) reduction, while center dot OH displayed a minor effect on U(VI) reduction.
KeywordUranium WO3/-C3N4 Photocatalytic Reduction
DOI10.1016/j.cej.2021.131209
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits
WOS KeywordURANIUM ; EVOLUTION ; WO3
Language英语
Funding ProjectNational Natural Science Foundation of China[21707127] ; National Natural Science Foundation of China[51968072] ; National Natural Science Foundation of China[U1730245] ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits ; Gansu Talent and Intelligence Center for Remediation of Closed and Old Deposits
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000728529600001
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/103911
Collection兰州油气中心
Corresponding AuthorHe, Yan-Rong; Habibul, Nuzahat
Affiliation1.China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621000, Sichuan, Peoples R China
2.Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Peoples R China
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xiao-Yu,Wang, Jing-Jing,Li, Ping,et al. Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light[J]. CHEMICAL ENGINEERING JOURNAL,2022,428:10.
APA Zhang, Xiao-Yu.,Wang, Jing-Jing.,Li, Ping.,Tan, Zhao-Yi.,Zeng, Jun-Hui.,...&Habibul, Nuzahat.(2022).Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light.CHEMICAL ENGINEERING JOURNAL,428,10.
MLA Zhang, Xiao-Yu,et al."Removal of U(VI) from aqueous solution via photocatalytic reduction over WO3/g-C3N4 composite under visible light".CHEMICAL ENGINEERING JOURNAL 428(2022):10.
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