Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面


Transactions of Nonferrous Metals Society of China

Vol. 17    No. 1    January 2007

[PDF Download]        


Effect of surfactants on preparation of nanometer TiO2 by pyrohydrolysis
CHAI Li-yuan(柴立元)1, YU Yan-fen(于延芬)1, 2, ZHANG Gang(张 刚)1,
PENG Bing(彭 兵)1, WEI Shun-wen(韦顺文)1

1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China;
2. Changsha Environmental Protection College, Changsha 410004, China

Abstract:The nanometer TiO2 was prepared by pyrohydrolysis with titanic solution. The effects of species and content of the surfactants on the particle size, morphology and phase of TiO2 were studied by using LPA, XRD and TEM respectively. The results show that it is beneficial to reducing the aggregation of TiO2 particles with adding surfactants to the solution. Nanometer TiO2 powders with the size of 40−55 nm are obtained by adding the anion surfactants in the optimal content of 1.5% (mass fraction). The effect of cationic surfactant for reducing particle aggregation is not as good as that of anion. The crystal phase constitutent of TiO2 is dependent on the temperature of thermal treatment and complete anatase can be achieved after calcining in the temperature range of 350−750 ℃.


Key words: surfactant; nanometer TiO2; pyrohydrolysis

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱