A Study of the Preparation of Monodispersed TiO2 Particles

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (11): 1686.

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A Study of the Preparation of Monodispersed TiO₂ Particles

YU Wang-Lin¹, YANG Ping¹, XU Qiu-Yun¹, ZHU Ying¹, XI Zheng-Kai¹, CHEN Zong-Qi²

1. Department of Applied Chemistry, Shandong Institute of Building Materials, Jinan, 250022;
2. Department of Applied Chemistry, Qingdao Chemical Industry Institute, Qingdao

Received:1993-12-18 Revised:1994-04-10 Online:1994-11-24 Published:1994-11-24

Abstract

Abstract: The spherical and ellipsoidal monodispersed TiO₂ particles were prepared by using the method of hydrolysis from Ti(SO₄)₂ at increasing temperature.The effects of the concentration of Ti(SO₄)₂ and initial pHvalue on the size and morphology of the particles were studied systematically. It was found that the size of the particles increased with increasing Ti(SO₄)₂ cuncentration and decreasing pHvalue, and the morphology of the particles also changed due to the two factors.The morphology, size, and composition of the particles were studied by electronic microscopy and IR.Based on the change of the conductibility of the solution during the formation of the particles, the formation mechanism of the monodispersed particles was discussed.

Key words: Monodispersed particles, Titanium dioxide, Titanitim sulphate, Preparation

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YU Wang-Lin, YANG Ping, XU Qiu-Yun, ZHU Ying, XI Zheng-Kai, CHEN Zong-Qi. A Study of the Preparation of Monodispersed TiO₂ Particles[J]. Chem. J. Chinese Universities, 1994, 15(11): 1686.

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A Study of the Preparation of Monodispersed TiO₂ Particles

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