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Study of nanocrystalline TiO 2 prepared with raw and modified gelatin dispersants
Author(s) -
Liu Xiaoheng,
Wang Hengzhi,
Chen Daoyong,
Wang Ying,
Lu Lude,
Wang Xin
Publication year - 1999
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19990923)73:13<2569::aid-app3>3.0.co;2-i
Subject(s) - gelatin , diffractometer , nanocrystalline material , materials science , transmission electron microscopy , chemical engineering , dispersant , calcination , scanning electron microscope , particle size , particle (ecology) , polymer chemistry , dispersion (optics) , chemistry , composite material , nanotechnology , organic chemistry , catalysis , optics , physics , oceanography , geology , engineering
Abstract 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 · H 2 O with the peptide chains of gelatin by a hydrogen bond. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 2569–2574, 1999