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TiO_2/WO_3纳米粉体的制备及其光催化性能 被引量：3

Study on the preparation of TiO_2/WO_3 and Its Photocatalytic Activity
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摘要 以Na2WO4和C12H25NH3.Cl作原料,通过液相沉淀法制备了WO3纳米粉体,再用钛酸胶体浸滞法制备了TiO2包覆的WO3纳米粉体,并采用透射电子显微镜、紫外-可见漫反射吸收光谱和X-射线衍射对其结构进行了表征.实验结果表明,TiO2包覆使WO3的光响应范围扩大,吸附量增大,显著提高了WO3对可溶性染料罗丹明B的光催化降解活性和光稳定性. Columnar WO3 nanoparticles have been prepared from Na2WO4 and C12H25NHy·Cl via a liquid precipitation process, and TiO2-coated WO3 nanoparticles were synthesized by solvent impregnating method with TiO2 colloid. The obtained samples were characterized by X-ray diffraction, transmission electron microscopy, the UV-vis diffuse reflectance spectrum. Moreover, the samples were employed for degradation of Rhodamine B in aqueous suspension. The results showed that TiO2 coating enhanced the photocatalytic activity and photostability of WO3 for Rhodamine B degradation.
作者 刘华俊
机构地区 襄樊学院化学与生物科学系
出处 《襄樊学院学报》 2007年第5期37-40,共4页 Journal of Xiangfan University
基金 湖北省教育厅科研项目(D200625003)
关键词 光催化降解 罗丹明B TiO2 WO3 Photocatalysis Rhodamine B TiO2 WO3
分类号 O614.3 [理学—无机化学]
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参考文献14

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共引文献39

同被引文献28

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二级引证文献7

襄樊学院学报
2007年 第5期

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