| ZnO/Ag/CdCO_3纳米复合光催化剂的制备及性能研究 |
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| 引用本文： | 孟阿兰,徐啸,李镇江.ZnO/Ag/CdCO_3纳米复合光催化剂的制备及性能研究[J].纳米科技,2011(3):57-60,69. |
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| 作者姓名： | 孟阿兰 徐啸 李镇江 |
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| 作者单位： | 青岛科技大学化学与分子工程学院生态化工教育部重点实验室;青岛科技大学机电工程学院山东省高分子材料先进制造技术重点实验室; |
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| 基金项目： | 国家自然科学基金项目(50972063); 山东省自然科学基金项目(Y2007F64); 青岛市基础研究项目(09-1-3-27-jch) |
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| 摘 要： | 采用配位均匀共沉淀法制备出ZnO/Ag/CdCO3纳米复合光催化剂,用TEM、XRD、FT-IR、ICP等对产物的形貌、微观结构及组成进行了表征,着重研究了反应物配比及Cd(NO3)2浓度对ZnO/Ag/CdCO3纳米复合光催化剂催化降解甲基橙光催化活性的影响规律,结果表明,n(Zn2+):n(Ag+):n(Cd2+)=21:1.76:1.75,Cd(NO3)2浓度为0.168mol·dm-3时制得的纳米复合光催化剂对甲基橙(MO)的降解率较ZnO/Ag提高51%,ZnO/Ag/CdCO3对MO的光催化降解符合一级反应动力学方程,表观速率常数为1.4551h-1,是ZnO/Ag的7倍。
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| 关 键 词： | ZnO/Ag/CdCO3 光催化 甲基橙 |
Preparation and Properties of ZnO/Ag/CdCO_3 Nanocomposite Photocatalysts |
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| Authors: | MENG A-lan XU Xiao LI Zhen-jiang |
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| Affiliation: | MENG A-lan1,XU Xiao1,LI Zhen-jiang2(1.College of Chemistry and Molecular Engineering,Key Laboratory of Eco-chemical Engineering,Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China)(2.College of Electromechanical Engineering,Shandong Provincial Key Laboratory of Polymer Material Advanced Manufacturing Technology,Qingdao 266061,China) |
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| Abstract: | The ZnO/Ag/CdCO3 nanocomposite photocatalysts were prepared by coordination-coprecipitation method.The morphology,microstructure and component were characterized by TEM,XRD,FT-IR,and ICP.The influence of reactants ratio and Cd(NO3)2 concentrations on the photocatalytic activity for methyl orange photodegradation over ZnO/Ag/CdCO3 were studied.The result indicated that the photodegradation ratio of methyl orange over ZnO/Ag/CdCO3 nanocomposite photocatalysts,which were prepared by selecting n(Zn2+):n(Ag+):n(... |
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| Keywords: | ZnO/Ag/CdCO3 photoctalysis methyl orange |
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