| Ag/TiO_2纳米复合物的模板法制备及其性质研究 |
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| 引用本文： | 司友琳,张胜义,闵宏林.Ag/TiO_2纳米复合物的模板法制备及其性质研究[J].硅酸盐通报,2010,29(1):72-76. |
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| 作者姓名： | 司友琳 张胜义 闵宏林 |
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| 作者单位： | 蚌埠医学院化学教研室,蚌埠,233030;安徽大学化学化工学院,合肥,230039 |
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| 基金项目： | 国家自然科学基金资助项目(20875001);;安徽省教育厅自然科学研究项目(KJ2008B106ZC) |
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| 摘 要： | 本文以壳聚糖为模板剂,用NaBH_4还原法制备了表面沉积Ag的纳米TiO_2粉体.采用透射电镜(TEM)、X射线粉末衍射(XRD)、傅立叶红外光谱(FT-IR)以及紫外-可见光谱(UV-Vis)等手段对产物进行了分析和表征.结果表明:壳聚糖的加入,使银的还原反应易于控制;Ag沉积纳米TiO_2粒子的UV-Vis光谱吸收阈值显著红移.所得产物在日光下对有机染料甲基橙有很好的光催化降解作用;无光照条件下,产物有很好的抗菌效果.
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| 关 键 词： | 壳聚糖模板 纳米Ag/TiO_2 光催化 抗菌 |
Preparation and Characterization of Silver Deposited Nano-TiO_2 through the Chitosan Template Method |
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| SI You-lin,ZHANG Sheng-yi,MIN Hong-lin.Preparation and Characterization of Silver Deposited Nano-TiO_2 through the Chitosan Template Method[J].Bulletin of the Chinese Ceramic Society,2010,29(1):72-76. |
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| Authors: | SI You-lin ZHANG Sheng-yi MIN Hong-lin |
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| Affiliation: | 1.Department of Basic Courses;Bengbu Medical College;Bengbu 233030;China;2.School of Chemistry and Chemical Engineering;Anhui University;Hefei 230039;China |
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| Abstract: | In the presence of the chitosan template,reduction with silver deposited TiO2 nanoparticles were prepared via reduction with NaBH4. The Ag/TiO2 nanoparticles were characterized by TEM,XRD,FT-IR,and UV-Vis. The results showed that chitosan accession to the silver reduction reaction can be controlled easily;Nano-Ag/TiO2 shaped in the square for most particles and the red-shift was observed clearly in the UV-Vis adsorption spectrum. The photocatalytic activity of the as-prepared Ag/TiO2 nanopowders is satisfac... |
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| Keywords: | chitosan template Ag/TiO2 nanoparticles photocatalysis antibacterial |
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