具有丰富(001)面的锐钛矿TiO2晶体的无氟合成

doi:10.1016/S1872-2067(12)60679-2

催化学报 ›› 2013, Vol. 34 ›› Issue (11): 2004-2008.DOI: 10.1016/S1872-2067(12)60679-2

具有丰富(001)面的锐钛矿TiO₂晶体的无氟合成

常伟伟, 刘艳, 孙琦, 孟祥举, 肖丰收

浙江大学化学系, 浙江杭州310028

收稿日期:2013-06-14 修回日期:2013-08-16 出版日期:2013-10-18 发布日期:2013-10-18
通讯作者: Xiangju Meng,Feng-Shou Xiao
基金资助:
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).

Fluoride-free synthesis of anatase TiO₂ crystals rich in (001) facets in the presence of cationic polymer

Weiwei Chang, Yan Liu, Qi Sun, Xiangju Meng, Feng-Shou Xiao

Department of Chemistry, Zhejiang University, Hangzhou 310028, Zhejiang, China

Received:2013-06-14 Revised:2013-08-16 Online:2013-10-18 Published:2013-10-18
Contact: Xiangju Meng,Feng-Shou Xiao
Supported by:
This work was supported by the National Natural Science Foundation of China (U1162201 and 21003107), the National High Technology Research and Development Program of China (2013AA065301), the Science and Technology Innovative Team of Zhejiang Province (2012R10014-01), and the Fundamental Research Funds for the Central Universities (2013XZZX001).

摘要/Abstract

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.

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

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.

Key words: Anatase titanium, (001) facets, Solvothermal synthesis, Cationic polymer, High photocatalytic activity

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.

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.

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具有丰富(001)面的锐钛矿TiO₂晶体的无氟合成

Fluoride-free synthesis of anatase TiO₂ crystals rich in (001) facets in the presence of cationic polymer

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