Continuous high-efficient degradation of organic pollutants based on sea urchin-like Fe3O4/ZnO/ZnSe heterostructures in photocatalytic magnetically fixed bed reactor

doi:10.1016/j.colsurfa.2020.125198

	Continuous high-efficient degradation of organic pollutants based on sea urchin-like Fe3O4/ZnO/ZnSe heterostructures in photocatalytic magnetically fixed bed reactor
	Xu, Guoli 1; Zhang, Zhi 1; Li, Tao 1; Du, Meiling 1; Guan, Yueping 1; Guo, Chen 2
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2020-10-20
卷号	603 页码:13
关键词	Sea urchin-like Heterojunction Photocatalytic magnetically fixed bed reactor Continuous-flow photocatalytic system Simulated solar light photocatalysis
ISSN号	0927-7757
DOI	10.1016/j.colsurfa.2020.125198
英文摘要	In 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.
资助项目	National Natural Science Foundation of China[21978303]
WOS关键词	HEXAVALENT CHROMIUM ; AQUEOUS-SOLUTION ; NANOROD ARRAYS ; ZNO ; SOLAR ; PERFORMANCE ; FABRICATION ; REDUCTION ; REMOVAL ; NANOSHEETS
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000571933200002
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42126]
专题	中国科学院过程工程研究所
通讯作者	Guan, Yueping; Guo, Chen
作者单位	1.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
推荐引用方式 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.