| 张志红,赵秀峰,张立忠.WO3/(Phen)2.5HPW复合空心微球的制备及光催化性能[J].分子催化,2011,(2):152-156 |
| WO3/(Phen)2.5HPW复合空心微球的制备及光催化性能 |
| Preparation and Photocatalytic Performance of WO3/(Phen)2.5HPW Composite Hollow Microspheres |
| 投稿时间：2011-04-05 修订日期：2011-04-15 |
| DOI： |
| 中文关键词: 杂多化合物 WO3 复合空心微球 光催化 |
| 英文关键词:Heteropoly compound Tungsten trioxide Composite hollow microspheres Pohotcatalysis |
| 基金项目: |
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| 中文摘要: |
| 通过磷钨酸H3PW12O40（HPW）和邻菲啰啉C12H8N2（Phen）的溶液反应，合成了杂多化合物(C12H8N2)2.5H3PW12O40（(Phen)2.5HPW），以WO3空心微球为载体，负载杂多化合物(Phen)2.5HPW，制备了WO3/(Phen)2.5HPW复合空心微球。用等离子体原子发射光谱（ICP-AES）、元素分析（EA）、热重-差热分析（TG-DTA）、傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、紫外-可见漫反射吸收光谱（UV-vis DRS）对样品进行了表征。在高压汞灯照射下，研究了杂多化合物(Phen)2.5HPW、WO3空心微球和WO3/(Phen)2.5HPW复合空心微球对甲基橙水溶液的光催化降解活性，结果表明，WO3/(Phen)2.5HPW复合空心微球的光催化活性高于单独的杂多化合物(Phen)2.5HPW和WO3空心微球，催化剂易于回收，光催化性能稳定。 |
| 英文摘要: |
| Heteropoly compound (C12H8N2)2.5?H3PW12O40 ((Phen)2.5HPW) was synthesized via a solution reaction between phosphotungstic acid (HPW) and Phenanthroline (Phen), and WO3/(Phen)2.5HPW composite hollow microspheres were prepared with WO3 hollow microspheres dipping in Phenanthroline and phosphotungstic acid solution subsequently. Inductively coupled plasma atomic emission spectroscopy (ICP-AES), elemental analysis (EA) , thermogravimetry-differential thermal analysis (TG-DTA), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectroscopy (UV-vis DRS) were used for characterization. Photocatalytic performance of the heteropoly compound (Phen)2.5HPW, WO3 hollow microspheres and WO3/(Phen)2.5HPW composite hollow microspheres were tested by photocatalytic decomposition of methyl orange aqueous solution upon irradiation of high pressure mercury lamp, respectively. The results showed that the activity of WO3/(Phen)2.5HPW composite hollow microspheres was higher than that of (Phen)2.5HPW and WO3 hollow microspheres respectively, and deactivation of WO3/(Phen)2.5HPW composite hollow microspheres was negligible when the catalyst was separated for recycling applications. |
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