Synthesis, characterizations and photocatalytic studies of mesoporous titania prepared by using four plant skins as templates
Synthesis, characterizations and photocatalytic studies of mesoporous titania prepared by using four plant skins as templates
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以四种植物皮为模板制备介孔二氧化钛的合成、表征及光催化研究
DOI：
10.1016/j.msec.2010.03.020
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发表时间：
2010-07-20
影响因子：
7.9
通讯作者：
Wang, Jiaqiang
中科院分区：
文献类型：
--
作者：
Miao, Yingchun;Zhai, Zhongbiao;Wang, Jiaqiang
以番茄、洋葱、葡萄和大蒜为模板，合成了形貌新颖的锐钛矿型介孔二氧化钛，并用于紫外光下对龙胆紫、甲基紫、二甲酚橙和罗丹明B的光降解。采用X射线衍射仪、扫描电子显微镜、高分辨电子显微镜、氮气吸附/脱附等多种物理化学手段对样品进行了表征。漫反射UV-Vis和FT-IR。结果表明，所有合成的介孔二氧化钛样品均表现出与原始模板相似的形貌。P25型二氧化钛对四种染料的光催化活性基本相同，而以四种皮为模板合成的介孔二氧化钛对四种染料的光催化活性不同。(C)2010爱思唯尔B.V.保留所有权利。
Anatase mesoporous titania with novel morphologies were synthesized by using the skins of tomatoes, bulb onions, grapes, and garlic bulbs, respectively, as templates and used for the photodegradation of Gentian violet, methyl violet, xylenol orange, and Rhodamine B under UV light. The samples were characterized by a combination of various physicochemical techniques, such as X-ray diffraction, SEM, HRTEM, N-2 adsorption/desorption. diffuse reflectance UV-Vis, and FT-IR. It was found that all of the synthesized mesoporous titania samples exhibited similar morphologies to those of the original templates. The photoactivity of P25 TiO2 for the four dyes is nearly the same while the mesoporous titania samples synthesized by using the four skins as templates exhibited varied photoactivities for the four dyes. (C) 2010 Elsevier B.V. All rights reserved.