文档介绍：Methyl orange degradation on TiO2-FeZSM-5
composite photocatalyst
Wenjie Zhang, Bo Yang, Kuanling Wang, Lupeng Liu Hongbo He
School of Environmental and Chemical Engineering Institute of Applied Ecology
Shenyang Ligong University The Chinese Academy of Sciences
Shenyang 110159, China Shenyang 110016, China
metalzhang@
Abstract—The photocatalytic oxidation of methyl orange(MO) on II. EXPERIMENTAL
commercial TiO2 nano-particles could be essfully enhanced
by simple mechanical mixing with Fe3+ modified ZSM-5 zeolites A. Preparation of FeZSM-5
(FeZSM-5). When a mixture of TiO and FeZSM-5
2 Zeolite NaZSM-5 (SiO2/Al2O3=50) was obtained from
(TiO2:FeZSM-5 ratio=1:5) was added into the solution, methyl Nankai Catalyst Corporation, China. position of
orange removal rate was % after 30 min of irradiation,
the zeolite is Na2O -%, AlO3 -%, and SiO2
which increased 22% compared with using TiO2 alone. However, -%.
the photocatalytic activity of TiO2-FeZSM-posite
3+
photocatalyst with TiO2:FeZSM-5 ratio from 10:1 to 1:30 FeZSM-5 was prepared by Fe exchange from NaZSM-5.
prepared by solid state dispersion method decreased obviously. 50 g NaZSM-5 zeolite was put into a flask containing 200 ml
.
M Fe(NO3)3 9H2O aqueous solution. The reaction was
o
Keywords-photochemical technology; TiO2; FeZSM-5; maintained