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Preparation of nano-TiO2 photocatalysts and their decomposition activity in phenol-contaminated water
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Xiao-yuan JIANG, Feng DU, Chun-xia GUO, Qiong YANG, Xiao-ming ZHENG. Preparation of nano-TiO2 photocatalysts and their decomposition activity in phenol-contaminated water[J]. Journal of Zhejiang University Science A, 2009, 10(11): 1651-1659.
@article{title="Preparation of nano-TiO2 photocatalysts and their decomposition activity in phenol-contaminated water",
author="Xiao-yuan JIANG, Feng DU, Chun-xia GUO, Qiong YANG, Xiao-ming ZHENG",
journal="Journal of Zhejiang University Science A",
volume="10",
number="11",
pages="1651-1659",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0820687"
}
%0 Journal Article
%T Preparation of nano-TiO2 photocatalysts and their decomposition activity in phenol-contaminated water
%A Xiao-yuan JIANG
%A Feng DU
%A Chun-xia GUO
%A Qiong YANG
%A Xiao-ming ZHENG
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 11
%P 1651-1659
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820687
TY - JOUR
T1 - Preparation of nano-TiO2 photocatalysts and their decomposition activity in phenol-contaminated water
A1 - Xiao-yuan JIANG
A1 - Feng DU
A1 - Chun-xia GUO
A1 - Qiong YANG
A1 - Xiao-ming ZHENG
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 11
SP - 1651
EP - 1659
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0820687
Abstract: TiO2 was prepared by the hydrolyzation method in (NH4)2SO4-modified TiCl4 solution, and TiO2 photocatalysts were obtained by accelerating the precipitation of TiO2 powder in a high-temperature water bath. The photocatalysts were characterized by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), Raman spectrum and UV-Vis (Ultraviolet-Visible) spectrometry techniques, and the photocatalytic activity in phenol-contaminated water was investigated. The results showed that photocatalysts calcined at 400 °C had a specific surface area of 138.2 m2/g and an average particle size of 9 nm, and a significant increase in thermal stability of anatase phase. At the calcination temperature of 700 °C, the crystal form of TiO2 started to change into rutile (anatase: 97%, rutile: 3%). The activity of TiO2 photocatalysts prepared with (NH4)2SO4-modified TiCl4 solution was markedly stronger than that without (NH4)2SO4-modified TiCl4 solution. Maximal photocatalytic activity was observed at the mole ratio of Ti:(NH4)2SO4=1:2, the water-bath temperature of 90 °C and the calcination temperature of 700 °C.
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