| 多孔壳/磁核结构光催化剂的制备及表征 |
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| 引用本文： | 袁进,吕永康,李裕,李军平. 多孔壳/磁核结构光催化剂的制备及表征[J]. 功能材料, 2010, 41(2) |
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| 作者姓名： | 袁进 吕永康 李裕 李军平 |
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| 作者单位： | 太原理工大学,化学化工学院,山西,太原,030024;中北大学,化工与环境学院,山西,太原,030051 |
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| 基金项目： | 国家自然科学基金资助项目(20803089);;山西省青年科学基金资助项目(2007021012,2008021010) |
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| 摘 要： | 以聚氧乙烯-聚氧丙烯-聚氧乙烯三嵌段共聚物(P123)为结构导向剂,钛酸丁酯(TBOT)为钛源,SiO2/NiFe2O4为核,制备了具有多孔结构可磁分离的Ti O2/SiO2/NiFe2O4光催化剂。采用N2吸附-脱附、TEM、HRTEM、SEM、XRD和VSM等手段对样品进行分析表征。样品颗粒呈球形,分布均匀,平均粒径约为40nm,具备良好的磁分离性能。以硝基苯为模拟物测定其光催化活性,UV光照条件下,240min内硝基苯污染物降解完全,表明该光催化剂具有良好的光催化活性。
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| 关 键 词： | 磁性光催化剂 氧化钛 多孔 壳/核结构 |
Preparation and characterization of photocatalyst with porous shell and magnetic core structure |
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| YUAN Jin,LV Yong-kang,LI Yu,LI Jun-ping. Preparation and characterization of photocatalyst with porous shell and magnetic core structure[J]. Journal of Functional Materials, 2010, 41(2) |
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| Authors: | YUAN Jin LV Yong-kang LI Yu LI Jun-ping |
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| Affiliation: | 1.School of Chemistry and Chemical Engineering;Taiyuan University of Technology;Taiyuan 030024;China;2.School of Chemical Engineering and Environment;North University of China;Taiyuan 030051;China |
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| Abstract: | Magnetic separable TiO_2/SiO2/NiFe2O4 particles were synthesized by using P123 as direction agent and TBOT as the source of titanium dioxide.The samples were characterized with X-ray diffraction(XRD),transmission electron microscopy(TEM),high resolution transmission electron microscopy(HRTEM),scanning electron microscopy(SEM) and vibrating sample magnetometer(VSM).The results showed that the coating composite are sphere and has an even distribution,and the average size was about 40nm in diameter.The prepare... |
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| Keywords: | magnetic photocatalyst titanium dioxide porous shell and magnetic core structure |
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