Preparation of anatase powders from fluorine-complexed titanium(IV) aqueous solution using microwave irradiation

被引：29
作者：
Ayllón, JA
Peiró, AM
Saadoun, L
Vigil, E
Domènech, X
Peral, J
机构：
[1] Univ Autonoma Barcelona, Dept Quim, Edifici Cn, Cerdanyola 08193, Spain
[2] CSIC, Inst Ciencia Mat Barcelona, Cerdanyola 08193, Spain
[3] Univ La Habana, Inst Mat & React, Havana, Cuba
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2000年 / 10卷 / 08期
关键词：
D O I：
10.1039/b002723p
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The microwave radiation activated precipitation of titanium dioxide from homogeneous aqueous solutions of titanium-fluoro complexes and boric acid has been carried out in batch reactors. Crystalline anatase powders with narrow monodisperse size distribution have been obtained in a short time, at low temperature and atmospheric pressure. Microwave power, irradiation time and precursor concentration determine the properties of the obtained materials, i.e. crystal size, powder aggregate morphology and BET surface area. The obtained materials do not show photocatalytic activity, probably due to a considerable fluoride content that is in the range of 2-5%.
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页码：1911 / 1914
页数：4
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