| 利用Sol-Gel法与水热合成法制备纳米TiO2及其光催化活性研究 |
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| 引用本文： | 张文皓,杨武,郭昊,薄丽丽,薛再兰,高锦章.利用Sol-Gel法与水热合成法制备纳米TiO2及其光催化活性研究[J].化学工程师,2006,20(12):1-3. |
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| 作者姓名： | 张文皓 杨武 郭昊 薄丽丽 薛再兰 高锦章 |
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| 作者单位： | 西北师范大学,化学化工学院,甘肃,兰州,730070 |
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| 基金项目： | 教育部科学技术研究项目;教育部高等学校优秀青年教师教学科研奖励计划;甘肃省自然科学基金;西北师大知识与科技创新工程;甘肃省部共建生态环境相关高分子材料重点实验室资助项目 |
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| 摘 要： | 以Sol-Gel法及水热合成方法制备了纳米TiO2,利用XRD进行了表征,以太阳光为光源,通过对亚甲基蓝溶液的降解反应,考察了两种方法所得样品的光催化活性。结果表明,利用水热合成法制备的锐钛矿型TiO2具有更小的粒径,而通过溶胶-凝胶制得的样品为混晶型TiO2,对亚甲基蓝降解具有较高的光催化活性。
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| 关 键 词： | TiO2 Sol-Gel法 水热合成法 光催化 亚甲基蓝 |
| 文章编号： | 1002-1124（2006）12-0001-03 |
| 收稿时间： | 2006-09-06 |
| 修稿时间： | 2006年9月6日 |
Preparation and photocatalytic activities of TiO2 nanoparticles with sol-gel method and hydrothermal synthesis |
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| ZHANG Wen-hao,YANG Wu,GUO Hao,BO Li-li,XUE Zai-lan,GAO Jin-zhang.Preparation and photocatalytic activities of TiO2 nanoparticles with sol-gel method and hydrothermal synthesis[J].Chemical Engineer,2006,20(12):1-3. |
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| Authors: | ZHANG Wen-hao YANG Wu GUO Hao BO Li-li XUE Zai-lan GAO Jin-zhang |
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| Affiliation: | College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China |
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| Abstract: | TiO_2 nanoparticles were prepared respectively by sol-gel method and hydrothermal synthesis technique.The structure characterization was performed by means of X-ray diffraction(XRD).Based on the degradation on methylene blue under sunlight,the activities of two kinds of TiO_2 nanoparticles were tested.The results showed that the titania prepared by sol-gel method was a mixture of anatase and rutile,and the other was only of the anatase type by hydrothermal synthesis.The grain size of anatase TiO_2 was smaller than the mixed crystal,but the photocatalytic efficiency was less than the mixed type. It can be concluded that the activity of the mixed crystal TiO_2 particles was higher. |
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| Keywords: | TiO_2 particles sol-gel method hydrothermal synthesis photocatalysis methylene blue |
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