| 李金莲.H3PW12O40掺杂TiO2介孔材料的制备及光催化性能[J].分子催化,2010,(5):0 |
| H3PW12O40掺杂TiO2介孔材料的制备及光催化性能 |
| Preparation of the Mesoporous TiO2 with H3PW12O40 And Photocatalytic Reactivity |
| 投稿时间：2010-07-07 修订日期：2010-08-07 |
| DOI： |
| 中文关键词: 杂多酸 光催化 介孔二氧化钛 溶剂热合成法 罗丹明B |
| 英文关键词:Polyoxometalat Photocatalytic Mesoporous TiO2 Solvothermal method Rhodamine B |
| 基金项目: |
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| 中文摘要: |
| 以P123为模板剂，采用溶胶-凝胶的溶剂热合成方法制备了H3PW12O40掺杂TiO2介孔材料H3PW12O40/TiO2。利用紫外可见漫反射吸收光谱（UV-vis/DRS）、X 射线粉末衍射（XRD）、N2吸附和透射电子显微镜（TEM）手段对所制备的材料进行结构表征，罗丹明B（RB）为模型污染物评价其光催化性能。结果表明，所制备的介孔材料具有锐钛矿与板钛矿复合的晶型结构、大的BET比表面积和孔径均匀分布的介孔结构。光催化实验表明，H3PW12O40/TiO2可将罗丹明B完全矿化。 |
| 英文摘要: |
| The mesoporous TiO2 was prepared from a poly(ethylene glycol)- poly(propylene glycol)-based triblock copolymer (P123), titanium isopropoxide and H3PW12O40 by using sol–gel and solvothermal method. The structure of synthesized composites was characterizaed by UV-vis diffuse reflectance absorption spectra (UV-vis/DRS), X-ray diffraction (XRD), nitrogen adsorption and transmission electron microscopy (TEM). The rhodamine B photodecomposition was used as model dye to evaluate the adsorption abilities of the composites. The results show the prepared compositions exhibited anatase and brookite phase structure, larger BET areas, and mesoporosity with uniform pore size distribution. The photocatalytic experiment shows after being irradiated under the UV-light, the degradation rate of rhodamine B reached up to almost 100%。 |
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