title: Towards efficient visible-light active photocatalysts: CdS/Au sensitized TiO2 nanotube arrays.
abstract: A visible-light active photocatalyst, CdS/Au/TiO2 nanotube array (NTA) photoelectrode, was prepared by electrodeposition of Au nanoparticles onto TiO2 NTA with subsequent deposition of visible-light absorbable 2.4eV band-gap CdS quantum dots using successive ion layer adsorption and reaction (SILAR). The Au nanoparticles here act as electron sinks facilitating charge carrier separation. Under AM1.5G illumination a photoconversion efficiency of 4.06% was achieved for the CdS/Au/TiO2 NTA photoelectrode, suggesting the promise of the material architecture for achieving high-performance cost-effective materials.
authors: State Key Lab of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, Changsha 410082, China; Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Viet Nam.
authors: VanManh
authors: V
authors: Nguyen
authors: State Key Lab of Chemo/Biosensing & Chemometrics, College of Chemistry & Chemical Engineering, Hunan University, Changsha 410082, China. Electronic address: qycai0001@hnu.edu.cn.
authors: Qingyun
authors: Q
authors: Cai
authors: Flux Photon Corporation, 620 Hutton Blvd., Raleigh, NC 27303, USA.
authors: Craig A
authors: CA
authors: Grimes
keywords: 2,4-D; Au; CdS; Photocatalysis; TiO(2) nanotube arrays