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Continuous high-efficient degradation of organic pollutants based on sea urchin-like Fe3O4/ZnO/ZnSe heterostructures in photocatalytic magnetically fixed bed reactor
Xu, Guoli1; Zhang, Zhi1; Li, Tao1; Du, Meiling1; Guan, Yueping1; Guo, Chen2
2020-10-20
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN0927-7757
Volume603Pages:13
AbstractIn this study, a sea urchin-like Fe3O4/ZnO/ZnSe hierarchical heterostructured photocatalyst was successfully prepared via a convenient synthetic strategy and combined with a newly designed photocatalytic magnetically fixed bed reactor (PMFBR) to continuously photodegrade pollutants under simulated solar light irradiation. In the experiment, ZnO nanorods were first grafted onto the surfaces of hollow Fe3O4 nanoparticles, and then ZnSe nanoparticles were uniformly distributed on the ZnO nanorods, the obtained Fe3O4/ZnO/ZnSe composite exhibited three-dimensional structure and excellent magnetic response. Through citing PMFBR, a stable and homogeneously distributed heterogeneous catalyst, efficient light distribution, and good mass transfer of reactants were achieved. As a result, the Fe3O4/ZnO/ZnSe composite in the PMFBR showed excellent photocatalytic capacity with a continuous process. The combination of the magnetic photocatalyst and PMFBR transformed the reaction mode from cumbersome intermittent operation to a simple continuous-flow photocatalytic style. It is hoped that this continuous photocatalytic system could provide a new idea for large-scale wastewater treatment.
KeywordSea urchin-like Heterojunction Photocatalytic magnetically fixed bed reactor Continuous-flow photocatalytic system Simulated solar light photocatalysis
DOI10.1016/j.colsurfa.2020.125198
Language英语
WOS KeywordHEXAVALENT CHROMIUM ; AQUEOUS-SOLUTION ; NANOROD ARRAYS ; ZNO ; SOLAR ; PERFORMANCE ; FABRICATION ; REDUCTION ; REMOVAL ; NANOSHEETS
Funding ProjectNational Natural Science Foundation of China[21978303]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000571933200002
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42127
Collection中国科学院过程工程研究所
Corresponding AuthorGuan, Yueping; Guo, Chen
Affiliation1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xu, Guoli,Zhang, Zhi,Li, Tao,et al. Continuous high-efficient degradation of organic pollutants based on sea urchin-like Fe3O4/ZnO/ZnSe heterostructures in photocatalytic magnetically fixed bed reactor[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2020,603:13.
APA Xu, Guoli,Zhang, Zhi,Li, Tao,Du, Meiling,Guan, Yueping,&Guo, Chen.(2020).Continuous high-efficient degradation of organic pollutants based on sea urchin-like Fe3O4/ZnO/ZnSe heterostructures in photocatalytic magnetically fixed bed reactor.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,603,13.
MLA Xu, Guoli,et al."Continuous high-efficient degradation of organic pollutants based on sea urchin-like Fe3O4/ZnO/ZnSe heterostructures in photocatalytic magnetically fixed bed reactor".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 603(2020):13.
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