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TiO2 nanotube/ZnO nanorod/CdS on Ti mesh with three-dimensional array structure for photocatalytic degradation under visible light irradiation
Wu, Liangpeng1; Zhang, Mingyue2; Li, Juan1; Cen, Chaoping3; Li, Xinjun1
2016-05-01
Source PublicationRESEARCH ON CHEMICAL INTERMEDIATES
Volume42Issue:5Pages:4569-4580
AbstractThe three-dimensional (3D) TiO2 nanotube arrays (TNTA) were prepared by electrochemical anodization of Ti mesh in a mixed electrolyte solution of (NH4)(2)SO4 and NH4F. Well-defined CdS-sensitized ZnO nanorod arrays (ZNRA/CdS) were successfully built on TNTA by the hydrothermal method and chemical bath deposition. The as-prepared samples were characterized by means of XRD, FESEM, and UV-Vis. The photocatalytic activities of the samples were evaluated by measuring the photodegradation of methylene blue (MB) in aqueous solution under visible light irradiation. The photocatalytic efficiencies for MB degradation were 49 and 60 % for Ti mesh/ZNRA/CdS and Ti mesh/TNTA/ZNRA/CdS after irradiation for 6 h, respectively. This can be attributed to the presence of TNTA at the bottom of a ZNRA/CdS composite, which provides a direct pathway for photoinjected electrons transferring along the photoanode to enhance charge-collection efficiency and consequently reduce electron-hole recombination. Furthermore, it can enlarge the practical applications range of TiO2 due to its 3D nanoarray structure with good light-harvesting ability and flexibility.
SubtypeArticle
KeywordTi Mesh Tio2 Nanotube Zno Nanorod Arrays Cds Photocatalytic Activity
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11164-015-2297-6
WOS Subject ExtendedChemistry
WOS KeywordSENSITIZED SOLAR-CELLS ; TITANIUM-DIOXIDE ; METHYL-ORANGE ; ZNO NANORODS ; REMOVAL ; WATER ; CDS ; PERFORMANCE ; ADSORBENTS ; DYES
Indexed BySCI
Language英语
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000373617700039
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11209
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Guangdong Ind Tech Coll, Dept Chem Engn, Guangzhou 510030, Guangdong, Peoples R China
3.South China Inst Environm Sci, Minist Environm Protect, Key Lab Water & Air Pollut Control Guangdong Prov, Guangzhou 510655, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Wu, Liangpeng,Zhang, Mingyue,Li, Juan,et al. TiO2 nanotube/ZnO nanorod/CdS on Ti mesh with three-dimensional array structure for photocatalytic degradation under visible light irradiation[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2016,42(5):4569-4580.
APA Wu, Liangpeng,Zhang, Mingyue,Li, Juan,Cen, Chaoping,&Li, Xinjun.(2016).TiO2 nanotube/ZnO nanorod/CdS on Ti mesh with three-dimensional array structure for photocatalytic degradation under visible light irradiation.RESEARCH ON CHEMICAL INTERMEDIATES,42(5),4569-4580.
MLA Wu, Liangpeng,et al."TiO2 nanotube/ZnO nanorod/CdS on Ti mesh with three-dimensional array structure for photocatalytic degradation under visible light irradiation".RESEARCH ON CHEMICAL INTERMEDIATES 42.5(2016):4569-4580.
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