Preparation and photocatalytic performance of porous ZnO microrods loaded with Ag

被引：40

作者：

Jia Zhi-gang ^{[1
]}

Peng Kuan-kuan ^{[1
]}

Li Yan-hua ^{[1
]}

Zhu Rong-sun ^{[1
]}

机构：

[1] Anhui Univ Technol, Sch Chem & Chem Engn, Maanshan 243002, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Ag/ZnO; porous material; photocatalytic performance; decoloration; ONE-POT SYNTHESIS; TIO2; DEGRADATION; OXIDATION; DYES; COMPOSITES; CATALYST; SILVER;

D O I：

10.1016/S1003-6326(11)61259-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Porous silver-modified ZnO microrods photocatalysts were synthesized through direct thermal decomposition of the Ag-doped zinctartrate precursor, which was prepared by homogeneous precipitation method at 80 degrees C for 2 h. The obtained samples were characterized by XRD, FTIR, TG-DTA and UV-VIS absorption spectroscopy. The photocatalytic activity of the as-prepared porous Ag/ZnO microrods was tested with the photocatalytic degradation of methyl orange. The results indicate that doping Ag greatly improves the photocatalytic efficiency of ZnO and 3% Ag-doped (mole fraction) ZnO porous microrod photocatalyst exhibits the highest photocatalytic decolorization efficiency, leading to as much as 80% reduction of MO concentration in 120 min. Moreover, the 3% Ag-doped porous microrods also possess higher photocatalytic activity under the real sunlight irradiation.

引用

页码：873 / 878

页数：6

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