| 铥、镱共掺杂纳米二氧化钛/硫化镉光催化降解甲基橙的研究 |
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| 引用本文： | 耿爱芳,高菲,解晓青,赵娜娜,刘俊余,尚庆坤. 铥、镱共掺杂纳米二氧化钛/硫化镉光催化降解甲基橙的研究[J]. 分子科学学报, 2011, 27(2): 92-96 |
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| 作者姓名： | 耿爱芳 高菲 解晓青 赵娜娜 刘俊余 尚庆坤 |
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| 作者单位： | 长春理工大学化学与环境工程学院;东北师范大学化学学院; |
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| 基金项目： | 吉林省科技发展项目(20090593); 吉林省环保厅项目(2008-22) |
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| 摘 要： | 采用溶胶-凝胶法制备出稀土离子Tm3+和Yb3+共掺杂的纳米TiO2/CdS复合光催化剂,采用XRD、UV-Vis吸收光谱、TEM及上转换发光光谱等对其结构和光学特性进行了表征,以染料甲基橙为降解模型,系统地讨论了溶液的pH值、催化剂投加量、溶液初始浓度、光照强度等对复合催化剂光催化性能的影响,并对光催化降解动力学进行了分析.
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| 关 键 词： | Tm3+-Yb3+/TiO2/CdS 复合光催化剂 光催化 甲基橙 上转换 |
Photocatalystic degradation of methyl orange by Tm~(3+)-Yb~(3+) co-doped TiO_2/CdS nanocrystals |
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| GENG Ai-fang,GAO Fei,XIE Xiao-qing,ZHAO Na-na,LIU Jun-yu,SHANG Qing-kun. Photocatalystic degradation of methyl orange by Tm~(3+)-Yb~(3+) co-doped TiO_2/CdS nanocrystals[J]. Journal of Molecular Science, 2011, 27(2): 92-96 |
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| Authors: | GENG Ai-fang GAO Fei XIE Xiao-qing ZHAO Na-na LIU Jun-yu SHANG Qing-kun |
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| Affiliation: | GENG Ai-fang1,GAO Fei1,XIE Xiao-qing2,ZHAO Na-na2,LIU Jun-yu2,SHANG Qing-kun,2(1.Faculty of Chemistry and Environmental Engineering,University of Changchun Science and Engineering,Changchun 130022,China,2.Faculty of Chemistry,Northeast Normal University,Changchun 130024,China) |
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| Abstract: | The composite photocatalyst Tm3+-Yb3+ co-doped TiO2/CdS was synthesized by using sol-gel method.Its structure and optical properties were characterized by XRD,UV-Vis,TEM and upconversion emission spectra.The effects of pH,photocatalyst dosage,initial concentration of methyl orange and excitation intensity on the photocatalystic degradation of methyl orange haue been studied.The photocatalystic degradation kinetics have been investigated as well. |
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| Keywords: | Tm3 -Yb3 co-doped TiO2/CdS composite photocatalyst photocatalystic degradation methyl orange |
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