| Ag~+/ZnO纳米晶光催化降解苯酚溶液的研究 |
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| 引用本文： | 汪荣华,刘宏芳,许立铭,胡军辉. Ag~+/ZnO纳米晶光催化降解苯酚溶液的研究[J]. 华中科技大学学报(自然科学版), 2003, 0(8) |
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| 作者姓名： | 汪荣华 刘宏芳 许立铭 胡军辉 |
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| 作者单位： | 华中科技大学化学系(汪荣华，刘宏芳，许立铭)，华中科技大学材料科学与工程学院(胡军辉) |
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| 基金项目： | 国家自然科学基金资助项目 (5 0 0 4 1 0 2 4 ) |
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| 摘 要： | 利用AFM ,XRD ,UV Vis等手段对Ag+ /ZnO掺杂体系的形貌、平均粒径、吸收光谱进行表征 .研究了苯酚的初始浓度对光催化的影响 .探讨了在紫外光和太阳光下对 4 0mg/L苯酚溶液的光催化降解性能 ,结果表明掺杂后能有效利用太阳能进行光催化降解 ,当Ag+ 掺杂摩尔含量为 2 .0 0 %时 ,反应常数Ksunlight/KUV=1 .78,与掺杂前相比Ksunlight和KUV分别提高 1 5倍和 1 1 .4倍
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| 关 键 词： | Ag+/ZnO纳米晶 光催化降解 苯酚 太阳能 |
Photocatalytic degradation of phenol solution on Ag~+/ZnO nanoparticles |
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| Wang Ronghua Liu Hongfang Xu Liming Hu Junhui Wang Ronghua Postgraduagte, Dept. of Chemistry,Huazhong Univ. of Sci. , Tech.,Wuhan ,China.. Photocatalytic degradation of phenol solution on Ag~+/ZnO nanoparticles[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2003, 0(8) |
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| Authors: | Wang Ronghua Liu Hongfang Xu Liming Hu Junhui Wang Ronghua Postgraduagte Dept. of Chemistry Huazhong Univ. of Sci. & Tech. Wuhan China. |
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| Affiliation: | Wang Ronghua Liu Hongfang Xu Liming Hu Junhui Wang Ronghua Postgraduagte, Dept. of Chemistry,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | The topography, average size and absorption spectra were characterized by SPM. XRD, UV Vis method. The effect of initial concentration on photocatalytic degradation was studied. Under UV and sunlight irradiation in aqueous suspension, the photocatalytic degradation performance of phenol was investigated. It was demonstrated that the Ag +/ZnO nano crystals have more powerful capability than undoped one in utilizing solar energy. With the Ag doped dosage of 2.00?%, the rate of reaction constant ( K sunlight / K UV ) is 1.78, K sunlight and K UV are 15 and 11.4 times more than those of undoped respectively. |
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| Keywords: | Ag +/ZnO nanometer crystallite photocatalytic degradation phenol solar energy |
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