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| 大孔TiO_2-ZnO复合纳米材料的制备及其性能 | |
| 引用本文： | 刘威,徐耀维,谭永佳,钟伟,廖宗文.大孔TiO_2-ZnO复合纳米材料的制备及其性能[J].微纳电子技术,2011,48(2):98-102. |
| 作者姓名： | 刘威 徐耀维 谭永佳 钟伟 廖宗文 |
| 作者单位： | 1. 华南农业大学,理学院,生物材料研究所,广州,510642 2. 南京大学,物理系,南京,210093 3. 华南农业大学,资源环境学院,广州,510642 |
| 基金项目： | 广东省自然科学基金项目，华南农业大学"211工程"三期重点建设项目 |
| 摘 要： | 采用溶胶-凝胶法和胶态晶体模板法,制备了大孔TiO2-ZnO复合纳米材料。其晶相结构和形貌特征采用X射线粉末衍射(XRD)、透视电子显微镜(TEM)进行了表征,并以甲基橙为降解对象,对其光催化活性进行了研究。结果表明,采用无皂乳液聚合法得到的聚苯乙烯(PS)微球粒径均匀,为900nm。以紧密堆积的PS胶态晶体为模板,制得的TiO2-ZnO复合纳米材料的大孔孔径约为900nm,孔壁厚度约为20nm。XRD结果显示,材料中的TiO2为锐钛矿型。光催化降解结果表明,大孔TiO2-ZnO复合纳米材料对甲基橙降解1.5h后降解率可达91.3%,与普通的TiO2-ZnO纳米粉体材料相比提高了11.2%. |
| 关 键 词： | 大孔材料 TiO2 ZnO 模板法 光催化性能 |
Fabrication and Characteristics of TiO_2-ZnO Macroporous Composite Nanomaterials |
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| Liu Wei,Xu Yaowei,Tan Yongjia,Zhong Wei,Liao Zongwen.Fabrication and Characteristics of TiO_2-ZnO Macroporous Composite Nanomaterials[J].Micronanoelectronic Technology,2011,48(2):98-102. | |
| Authors: | Liu Wei Xu Yaowei Tan Yongjia Zhong Wei Liao Zongwen |
| Institution: | Liu Wei1,Xu Yaowei1,Tan Yongjia1,Zhong Wei2,Liao Zongwen3(1.Institute of Biomaterial,College of Science,South China Agricultural University,Guangzhou 510642,China,2.Physics Department,Nanjing University,Nanjing 210093,3.College of Natural Resources and Environment,China) |
| Abstract: | The TiO2-ZnO macroporous composite nanomaterials were prepared successfully by sol-gel method and polystyrene(PS)microspheres templates.The crystal structure and topo-graphy of the macroporous nanomaterials were characterized by X-ray diffraction(XRD)and transmission electron microscope(TEM).The photocatalytic activity was studied while the methyl orange was used as the degradation object.The results show that the PS microspheres synthesized by emulsifier-free emulsion polymerization are uniform with the pa... |
| Keywords: | TiO2 ZnO |
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