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Citation: Gao En-Qin, Zhang Li, Yang Mai-Zhi, Cai Sheng-Min. Preparation of TiO2 Nanoparticles by Hydrothermal Method and its Application for Photoelectrochemical Cell[J]. Acta Physico-Chimica Sinica, ;2001, 17(02): 177-180. doi: 10.3866/PKU.WHXB20010218 shu

Preparation of TiO2 Nanoparticles by Hydrothermal Method and its Application for Photoelectrochemical Cell

1.
College of Chemistry and Molecular Engineering,Peking University,Beijing　100871;Suzhou Teacher′s College,Su Zhou　234000

Received Date: 1 May 2000
Available Online: 15 February 2001

By varying the hydrolysis and hydrothermal processing parameters in preparing TiO2 nanoparticles different sizes of TiO2 nanoparticles are obtained.(1) At higher autoclaving temperature,lower pH and longer autoclaving period,larger sizes of TiO2 nanoparticles are prepared.(2) The nanoporous electrodes made from sintering smaller TiO2 nanoparticles show relatively poor IPCE and low absorption in UVVis spectrum,(3) Higher IPCE can be achieved with TiO2 nanoporous electrodes made from sintering larger TiO2 nanoparticles.These electrodes are suitable for studying behavior of the photoelectrochemistry of dye sensitized nanoporous electrodes.
- Hydrothermal method;TiO₂ nanoparticle;Dye sensitization;　Photoelectrochemistry
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