Characterization and photocatalytic performance of nanosize TiO2 powders prepared by the solvothermal method

被引：0
作者：
Woo Seok Nam
Gui Young Han
机构：
[1] Sungkyunkwan University,Dept. of Chemical Engineering
来源：
Korean Journal of Chemical Engineering | 2003年 / 20卷
关键词：
Solvothermal Method; TiO; Photocatalyst; Photodegradation; Methyl Orange;
D O I：
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中图分类号：
学科分类号：
摘要：
The solvothermal reaction of titanium tetra-isopropoxide (TTIP) in different alcohol solvents was investigated in the pressure range 40±2 bar to prepare Titanium (IV) oxide. The results show that the physical properties of the products, such as crystal size, shape, and structure, are strongly in fluenced by the types of solvents and temperature during the reaction. The effects of reaction conditions on the physical properties and the crystal structure of powder were investigated by using XRD, SEM, DLS, DSC and BET. The obtained TiO2 powder prepared at an organic solvent condition exhibited submicron size and huge surface area with a narrow size distribution but some agglomeration. TiO2 powder prepared at 1,4-butanediol and 623 K shows the highest photoactivity on the photodegradation rate of methyl orange.
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页码：1149 / 1153
页数：4
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