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材料研究学报  2012, Vol. 26 Issue (6): 561-566    
  研究论文 本期目录 | 过刊浏览 |
煅烧温度对In--TiO2纳米材料光催化性能的影响
张文杰, 陈金垒, 王宏, 何红波
1.沈阳理工大学 环境与化学工程学院 沈阳 110159
2.中国科学院沈阳应用生态研究所 沈阳 110016
Effects of Calcination Temperature on the Photocatalytic Activity of In–TiO2 Nano–material
ZHANG Wenjie,  CHEN Jinlei,  WANG Hong,  HE Hongbo
1.School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159
2.Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016
引用本文:

张文杰 陈金垒 王宏 何红波. 煅烧温度对In--TiO2纳米材料光催化性能的影响[J]. 材料研究学报, 2012, 26(6): 561-566.
ZHANG Wenjie CHEN Jinlei WANG Hong HE Hongbo. Effects of Calcination Temperature on the Photocatalytic Activity of In–TiO2 Nano–material[J]. Chinese Journal of Materials Research, 2012, 26(6): 561-566.

全文: PDF(954 KB)  
摘要: 

采用溶胶--凝胶法合成In掺杂TiO2纳米材料, 用XRD、FT--IR以及N2吸附--脱附等手段对其表征, 研究了热处理条件对其结构和光催化性能的影响。结果表明, 在不同煅烧温度制备的材料均由锐钛矿型TiO2组成,  且其表面形貌变化不大;随着煅烧温度的提高TiO2晶粒尺寸逐渐增大, 催化剂的比表面积逐渐降低, 孔径逐渐增大。在400℃煅烧制得的3%In--TiO2的比表面积为94.4 m2/g, 平均孔径为10.3 nm, 具有最强的光催化能力, 经光照30 min后对甲基橙的光催化降解率为43.1%。

关键词 无机非金属材料热处理In--TiO2光催化甲基橙    
Abstract

3%In doped TiO2 nano–material was prepared by sol–gel method, and powder X–ray diffraction (XRD), scanning electron microscope (SEM), FT–IR, and N2 adsorption–desorption were employed to characterize the material calcined at different temperature. Photocatalytic degradation of methyl orange under UV–light irradiation on the materials was also examined. The results show that all the samples present anatase TiO2 phase, and no apparent impact on surface morphology of the samples was
observed. With increasing calcination temperature, TiO2 crystallite size and average pore size increased gradually, while the special surface area decreased. The special surface area and average pore size are 94.4 m2/g and 10.3 nm for the 3%In–TiO2 sample calcinated at 400oC. Meanwhile, the sample also have the optimal photocatalytic degradation activity, and methyl orange degradation rate is 43.1% after 30 min of UV–light irradiation.

Key wordsinorganic non–metallic materials    thermal treatment    In–TiO2    photocatalysis    methyl orange
收稿日期: 2012-10-09     
ZTFLH:  O643  
基金资助:

国家自然科学基金41271251和辽宁省科学技术计划2010229002资助项目。


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