| 纳米ZnO/Ag的制备及其光催化性能 |
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| 引用本文： | 邵忠宝,王成艳,陈雪冰,韩春梅,王颖. 纳米ZnO/Ag的制备及其光催化性能[J]. 材料研究学报, 2005, 19(1): 59-63 |
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| 作者姓名： | 邵忠宝 王成艳 陈雪冰 韩春梅 王颖 |
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| 作者单位： | 东北大学;沈阳大学师范学院 |
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| 摘 要： | 以Zn(CH3COO)2·2H2O和AgNO3为原料,丙烯酰胺为单体,N,N′-亚甲基双丙烯酰胺为交联剂,用高分子凝胶法在较低的温度下制备出纳米ZnO/Ag.对纳米ZnO/Ag的结构和性能进行了表征,并研究了它的光催化活性.结果表明:在这个方法中,利用丙烯酰胺自由基聚合反应,同时利用网络剂有两个活化双健的双功能团效应,将高分子链联结起来构成网络.高分子凝胶形成的极小且均匀的网络限制了ZnO/Ag晶粒之间的团聚.制备出的纳米ZnO/Ag粉料颗粒为球形,未被Ag包覆的纳米ZnO的平均粒径约15 nm,被Ag包覆的纳米ZnO的平均粒径约45 nm.在次甲基蓝水溶液中加入3 g/LZnO/Ag粉料后,次甲基蓝的降解率为100%.沉积贵金属Ag使ZnO纳米粉料的光催化活性得到了很大提高,且可以重复使用.
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| 关 键 词： | 无机非金属材料 高分子凝胶法 纳米ZnO/Ag 光催化 |
| 文章编号： | 1005-3093(2005)01-0059-05 |
| 收稿时间： | 2004-04-28 |
| 修稿时间： | 2004-07-19 |
Photocatalysis and preparation of nanometer-sizde ZnO/Ag by polyacrylamide gel method |
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| SHAO Zhongbao,WANG Chengyan,CHEN Xuebing,HAN Chunmei,WANG Ying. Photocatalysis and preparation of nanometer-sizde ZnO/Ag by polyacrylamide gel method[J]. Chinese Journal of Materials Research, 2005, 19(1): 59-63 |
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| Authors: | SHAO Zhongbao WANG Chengyan CHEN Xuebing HAN Chunmei WANG Ying |
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| Abstract: | The acrylamide and N,N$^{prime}$--methylenediacrylamide were used to make apolyacrylamide gel from an aqueous solution of zinc acetate and silver nitrate.The characterization and the photocatalytic activities of nanometer--sized ZnO/Agwere studied by XRD, FT--IR and TEM. The results showed that because of polyacrylamidenetwork the particle of ZnO/Ag crystalline was global, the even particle diametersize of nanometer--sized ZnO un--coated by Ag was about 15 nm, and the even particlediameter size of nanometer--sized ZnO/Ag about 45 nm. The degraded rate ofmethylene blue was 100% when ZnO/Ag was used, and ZnO/Ag powders can be usedrepeadly. |
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| Keywords: | inorganic non-metallic materials polyacrylamide gel method nano ZnO/Ag pho-tocatalysis |
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