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Study of nanocrystalline TiO2 prepared with raw and modified gelatin dispersants

✍ Scribed by Xiaoheng Liu; Hengzhi Wang; Daoyong Chen; Ying Wang; Lude Lu; Xin Wang

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
231 KB
Volume
73
Category
Article
ISSN
0021-8995

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✦ Synopsis

Nanocrystalline TiO 2 was prepared by the sol-gel method, and raw gelatin and its modified samples crosslinked with formaldehyde acted as dispersers in this method. Transmission electron microscope and X-ray diffractometer measurements showed, using modified gelatin samples, the prepared TiO 2 nanocrystals have smaller particle size and more homogeneous particle distribution at the same calcining temperature. Following Fourier transform IR spectroscope analysis, the dispersion mechanism is considered to be through the bonding of TiO(NO 3 ) 2 ⅐ H 2 O with the peptide chains of gelatin by a hydrogen bond.

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