Batch Preparation of TiO2 Hollow Spheres by Templating Against PSA-A Latex

Abstract

Abstract: With Ti(SO₄)₂ as raw material, and water as dispersion medium, the PSA-A latex/titanium hydrolysis compounds core-shell microspheres were prepared by templating against PSA-A latex with carboxyl. The TiO₂ hollow spheres of 450nm were obtained by calcining the as-prepared core-shell microspheres. TG-DSC, SEM, TEM, IR and XRD measurements were used to characterize the samples. The investigations of the core-shell formatting process and the effect of experimental conditions on pH value changes indicated that the varing rate of pH value was the determining factor for a successful coating. The optimum varing rate of pH value for core-shell microspheres formation was obtained and TiO₂ hollow spheres were prepared in batches under the conditions of 230g/L PSA-A latex and 1mol/L Ti(SO₄)₂.

Key words: TiO₂, hollow spheres, PSA-A, patch, pH value

CLC Number:

TB383

HAN Chun-Rui,LU Wei-Li,WU Xiu-Yong,FU Xun,HU Zheng-Shui. Batch Preparation of TiO₂ Hollow Spheres by Templating Against PSA-A Latex[J]. Journal of Inorganic Materials.

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Batch Preparation of TiO₂ Hollow Spheres by Templating Against PSA-A Latex

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