| 介孔结构Na4W10O32/TiO2复合光催化剂的制备及其可见光光催化性能的研究 |
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| 引用本文： | 耿爱芳,王长华,姜淑娟,郭伊荇.介孔结构Na4W10O32/TiO2复合光催化剂的制备及其可见光光催化性能的研究[J].东北师大学报(自然科学版),2006,38(4):77-80. |
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| 作者姓名： | 耿爱芳 王长华 姜淑娟 郭伊荇 |
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| 作者单位： | 1. 长春理工大学材料与化工学院,吉林,长春,130022;东北师范大学化学学院,吉林,长春130024
2. 东北师范大学化学学院,吉林,长春130024 |
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| 摘 要： | 用溶胶-凝胶和程序升温水热法制备了介孔结构的Na4W10O32/TiO2多酸纳米晶复合光催化剂.用ICP-AES、XRD、拉曼散射光谱、TEM和N2吸附测定等技术对其组成和结构进行了表征.考察了催化剂的可见光光催化性能.结果表明:Na4W10O32均匀地分散在TiO2网络内部,而且其基本骨架结构未发生改变;该催化剂比锐钛矿TiO2,H6P2W18O62/TiO2和H4SiW12O40/TiO2具有更高的可见光光催化活性.
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| 关 键 词： | 溶胶-凝胶法 纳米材料 多金属氧酸盐 锐钛矿 协同作用 可见光光催化 |
| 文章编号： | 1000-1832（2006）04-0077-04 |
| 收稿时间： | 2006-04-21 |
| 修稿时间： | 2006年4月21日 |
Mesoporous Na4W10O32/TiO2 composite photocatalyst:preparation and visible-light photocatalytic activity |
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| GENG Ai-fang,WANG Chang-hua,JIANG Shu-juan,GUO Yi-xing.Mesoporous Na4W10O32/TiO2 composite photocatalyst:preparation and visible-light photocatalytic activity[J].Journal of Northeast Normal University (Natural Science Edition),2006,38(4):77-80. |
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| Authors: | GENG Ai-fang WANG Chang-hua JIANG Shu-juan GUO Yi-xing |
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| Institution: | 1. College of Material and Chemical Engineering,Changehun University of Science and Technology, Changchun 130024, China; 2. Faculty of Chemistry, Northeast Normal University, Changchun 130024, China |
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| Abstract: | The anatase phase,nanosized Na_4W_(10)O_(32)/TiO_2 composite,was prepared by a sol-gel technique coupled with programmed temperature hydrothermal treatment.The composite was characterized by ICP-AES,XRD,Raman scattering studies,TEM,and nitrogen adsorption/desorption determination,indicating that the primary Na_4W_(10)O_(32) structure remained intact after immobilizing photoreactive decatungstate inside the titania network,and the composite exhibited mesoporosity.Na_4W_(10)O_(32)/TiO_2 showed visible-light photocatalytic activity to polyacrylamide(PAM) degradation,attributed to synergistic effect resulting from the combination of the two photoactive materials and its porous structure. |
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| Keywords: | sol-gel nanocomposite polyoxometalate anatase TiO_2 synergistic effect visible-light photocatalyst |
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