| 具有丰富(001)面的锐钛矿TiO2晶体的无氟合成 |
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| 引用本文： | 常伟伟,刘艳,孙琦,孟祥举,肖丰收. 具有丰富(001)面的锐钛矿TiO2晶体的无氟合成[J]. 催化学报, 2013, 34(11): 2004-2008. DOI: 10.1016/S1872-2067(12)60679-2 |
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| 作者姓名： | 常伟伟 刘艳 孙琦 孟祥举 肖丰收 |
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| 作者单位： | 浙江大学化学系, 浙江杭州310028 |
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| 基金项目： | 国家自然科学基金(U1162201和21003107);国家高技术研究发展计划(2013AA065301);浙江省创新团队项目(2012R10014-01);中央高校基本科研业务费专项资金(2013XZZX001)~~ |
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| 摘 要： | 采用一种全新的方法实现了无氟、在阳离子聚合物参与下合成具有丰富(001)面的锐钛矿TiO2晶体(TiO2-P), 并通过X射线衍射、扫描电镜、透射电镜、紫外-可见光谱等手段对样品进行了表征. 光催化测试显示, 该样品对甲基橙的降解具有比常规锐钛矿TiO2和商业P25更好的活性, 这可归因于TiO2-P具有大量的暴露(001)晶面.
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| 关 键 词： | 锐钛矿二氧化钛 (001)晶面 溶剂热合成 阳离子聚合物 高光催化活性 |
| 收稿时间： | 2013-06-14 |
Fluoride-free synthesis of anatase TiO2 crystals rich in (001) facets in the presence of cationic polymer |
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| Weiwei Chang;Yan Liu;Qi Sun;Xiangju Meng;Feng-Shou Xiao. Fluoride-free synthesis of anatase TiO2 crystals rich in (001) facets in the presence of cationic polymer[J]. Chinese Journal of Catalysis, 2013, 34(11): 2004-2008. DOI: 10.1016/S1872-2067(12)60679-2 |
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| Authors: | Weiwei Chang Yan Liu Qi Sun Xiangju Meng Feng-Shou Xiao |
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| Affiliation: | Department of Chemistry, Zhejiang University, Hangzhou 310028, Zhejiang, China |
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| Abstract: | Controllable syntheses of anatase TiO2 rich in (001) facets have attracted much attention because of the excellent photocatalytic activity of this material in dye degradation. These syntheses are normally performed in the presence of fluoride, which is environmentally unfriendly. In this study, anatase TiO2 crystals rich in (001) facets were successfully synthesized in the presence of a cationic polymer and characterized using X-ray diffraction, scanning electron and transmission electron microscopies, and ultraviolet-visible spectroscopy. Photocatalytic tests showed that this material is very active in the degradation of methyl orange compared with conventional anatase TiO2 crystals and a commercial P25 photocatalyst. The high activity is attributed to the rich (001) facets translation. |
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| Keywords: | Anatase titanium (001) facets Solvothermal synthesis Cationic polymer High photocatalytic activity |
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