Chinese Journal of Applied Chemistry ›› 1996, Vol. 0 ›› Issue (6): 11-14.

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Photochemical Preparation and Quantum Size Effect of Nano-Grade TiO2 Micromicellae

Ma Dengjun1, Tan Junra2, Chen Xiuzeng2, Wang Shuzi2, Li Jinsheng2   

  1. 1. Hebei Architecture Engineering College;
    2. Department of Chemistry, Tianjin University, Tianjin 300072
  • Received:1996-01-31 Revised:1996-07-04 Published:1996-12-10 Online:1996-12-10

Abstract: In this paper the preparation of nano-grade TiO2 particles by photochemical reaction of Ti3+ in aqueous medium and the reaction kinetics are studied.Quantum size effect of absorption spectrum is discussed.The nano-size of TiO2 particles is determined by TEM to be 15~25 nm.The hydrogen evolved in the reaction process is analysed by gas chromatography.

Key words: photochemistry, nano-sized, titanium dioxide, kinetics