Efficient synthesis of titania nanotubes and enhanced photoresponse of Pt decorated TiO2 for water splitting
Efficient synthesis of titania nanotubes and enhanced photoresponse of Pt decorated TiO2 for water splitting
Yuxin YIN1, Xin TAN1(), Feng HOU2, Lin ZHAO1
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; 2. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
We investigated the effect of HMT (hexamethylenetetraamine) on the anodic growth of TiO2 nanotube arrays. The tube length increases to 4.3 μm with HMT concentration increasing to 0.04 mol·L-1. Adsorption of HMT on the TiO2 surface is shown to markedly decrease the chemical dissolution rate of tube mouth, resulting in longer nanotube length. Furthermore, Pt nanoparticles were successfully deposited on the surface of TiO2 nanotubes by ac electrodeposition method. The TiO2/Pt composites were characterized by field emission scanning electron microscope (FESEM), X-ray photoelectron spectra (XPS), and photoelectrochemistry. An enhancement in photocurrent density has been achieved upon modification of TiO2 nanotubes with Pt nanoparticles.
Corresponding Author(s):
TAN Xin,Email:tanxin@tju.edu.cn
引用本文:
. Efficient synthesis of titania nanotubes and enhanced photoresponse of Pt decorated TiO2 for water splitting[J]. Frontiers of Chemical Engineering in China, 2009, 3(3): 298-304.
Yuxin YIN, Xin TAN, Feng HOU, Lin ZHAO. Efficient synthesis of titania nanotubes and enhanced photoresponse of Pt decorated TiO2 for water splitting. Front Chem Eng Chin, 2009, 3(3): 298-304.
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