ZnO/montmorillonite for photocatalytic and photochemical degradation of methylene blue

被引：184
|
作者：
Fatimah, Is [1 ]
Wang, Shaobin [2 ]
Wulandari, Dessy [1 ]
机构：
[1] Univ Islam Indonesia, Dept Chem, Yogyakarta 55581, Indonesia
[2] Curtin Univ, Dept Chem Engn, Perth, WA 6845, Australia
来源：
APPLIED CLAY SCIENCE | 2011年 / 53卷 / 04期
关键词：
Montmorillonite; ZnO; Photocatalysis; Methylene blue dye degradation; WATER-TREATMENT; SOL-GEL; ZNO; CLAY; PHOTODEGRADATION; DYE; ADSORPTION; CATALYST; REMOVAL; MCM-41;
D O I：
10.1016/j.clay.2011.05.001
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Synthesis of a ZnO/montmorillonite photocatalyst based on an Indonesian natural montmorillonite was conducted using a sol-gel intercalation method. The physicochemical properties of the material were determined by XRD, N-2 adsorption-desorption, SEM, TEM and UV-Vis diffuse reflectance. The activity was evaluated in photocatalytic and photochemical degradation of methylene blue (MB) with and without H2O2. Characterization showed that the ZnO particles were successfully distributed in montmorillonite support and ZnO/montmorillonite had lower band gap energy. The increased adsorption of MB on ZnO/montmorillonite resulted in faster photodegradation. The kinetics of the reaction obeyed the Langmuir-Hinshelwood model. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：553 / 560
页数：8
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