Sn/Cu-TiO2 nanoparticles produced via sol-gel method: Synthesis, characterization, and photocatalytic activity

被引：0
|
作者：
R. Mohammadi
B. Massoumi
机构：
[1] Payame Noor University,Department of Chemistry
来源：
Russian Journal of Physical Chemistry A | 2014年 / 88卷
关键词：
Sn/Cu-TiO; nanoparticles; photocatalytic degradation; activation energy; electrical energy per order;
D O I：
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中图分类号：
学科分类号：
摘要：
TiO2 and Sn/Cu-TiO2 nanoparticles with different Sn/Cu contents have been synthesized and characterized by different analysis methods such as XRD, TEM, and BET. Sn/Cu-TiO2 was preferential to TiO2 with 2,5-fold increase in photodegradation rate of different types of dyes such as methyl orange, methylene blue and methyl red. This activity was relevant to the influences of co-doping on the physicochemical properties and surface interfacial charge transfer mechanisms. An optimum synergetic effect was found for a mass ratio of Sn/TiO2 equal to 0.75% and Cu/TiO2 equal to 0.5%. The degradation reaction fit well to a Langmuir-Hinshelwood kinetic model indicating the reaction rate is depended on initial adsorption step.
引用
收藏
页码：1184 / 1190
页数：6
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