| 水热沉淀法制备TiO_2空心球及光催化性能 |
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| 引用本文： | 贺春晖,唐建林,肖勇,刘应亮.水热沉淀法制备TiO_2空心球及光催化性能[J].暨南大学学报,2009,30(3). |
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| 作者姓名： | 贺春晖 唐建林 肖勇 刘应亮 |
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| 作者单位： | 1. 暨南大学化学系,广东,广州,510632;湖南省隆回县万和实验中学,湖南,隆回,422200
2. 暨南大学化学系,广东,广州,510632 |
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| 基金项目： | 国家自然科学基金项目，广东省自然科学基金项目 |
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| 摘 要： | 以碳球为模板,硫酸钛为钛源,水作溶剂,尿素为均一沉淀剂,通过水热沉淀法制备了C/TiO2核壳结构,然后在空气中适当温度下煅烧得TiO2空心球.采用XRD、SEM、TEM、FT-IR等手段对实验样品进行分析表征.实验发现,空心球的大小可以通过改变碳球的大小加以调控;光催化性能测试表明,影响空心球光催化性能的主要因素是水热温度,水热时间影响较小.
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| 关 键 词： | 二氧化钛(Ti02) 空心球 水热沉淀法 碳球模板 |
Preparation and properties of titania hollow spheres by hydrothermal precipitation method |
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| HE Chun-hui,TANG Jian-lin,XIAO Yong,LIU Ying-liang.Preparation and properties of titania hollow spheres by hydrothermal precipitation method[J].Journal of Jinan University(Natural Science & Medicine Edition),2009,30(3). |
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| Authors: | HE Chun-hui TANG Jian-lin XIAO Yong LIU Ying-liang |
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| Institution: | 1.Department of Chemistry;Jinan University;Guangzhou 510632;China;2.Longhui County Wanhe Experimental School of Hunan Province;Hunan;Longhui 422200;China |
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| Abstract: | Titania hollow spheres with tunable shell thickness and size have been successfully synthesized by employing carbon spheres as template in subsection hydrothermal precipitation methods.The structure of carbon/titania and titania hollow spheres was characterized by TEM and SEM,the diameter of titania hollow spheres compared to carbon spheres has a bigger shrinkage,no titania fragments were observed after calcined.The shell thickness and size of titania hollow spheres can be readily tuned by altering the conc... |
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| Keywords: | titania hollow spheres hydrothermal precipitation method photocatalysis |
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