光催化
材料科学
介孔材料
二氧化钛
罗丹明B
吸附
钛
化学工程
比表面积
烟气
核化学
催化作用
复合材料
冶金
有机化学
化学
工程类
作者
Xiao Ye,Lei Xu,Ziyan Li,Ruiqi Gang,Yi Xia,Xueqian Wang,Lang-Lang Wang,Sivasankar Koppala
出处
期刊:NANO
[World Scientific]
日期:2021-08-01
卷期号:16 (09)
被引量:3
标识
DOI:10.1142/s1793292021501071
摘要
The three-dimensional (3D) mesoporous titanium dioxide (TiO 2 ) was synthesized by microwave-assisted hydrothermal method, using titanium sulfate as titanium source and urea to adjust pH value. Its structure and photocatalytic oxidation properties were studied. The results show that the TiO 2 particles have a 3D mesoporous structure, uniform distribution and spherical shape, the average diameter is about 0.67[Formula: see text][Formula: see text]m. These properties provide strong light adsorption, high specific surface area, which increases the active site of the photocatalyst, porosity can also enhance the ability of the material to adsorb pollutants, thus has better stability. It was applied to photocatalytic degradation of 10[Formula: see text]mg/L rhodamine B (RhB) solution. After 80[Formula: see text]min of irradiation under 420[Formula: see text]nm ultraviolet (UV) light, the degradation rate of RhB reached more than 90%. In addition, it also provided an excellent photocatalytic efficiency of removing Hg 0 in simulated flue gas. The removal efficiency could still reach over 86% after 40 h, which could be used in the treatment of heavy metal pollutants such as metallurgical flue gas.
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