| 花状结构Bi2WO6多孔微球: 组装及光催化性能 |
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| 引用本文： | 章 剑,章 燕,沈玉华,李 村,谢安建. 花状结构Bi2WO6多孔微球: 组装及光催化性能[J]. 无机化学学报, 2012, 28(4): 739-744 |
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| 作者姓名： | 章 剑 章 燕 沈玉华 李 村 谢安建 |
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| 作者单位： | 1. 安徽大学化学化工学院,合肥,230039
2. 安徽大学化学化工学院,合肥230039;南京大学配位化学国家重点实验室,南京 210093 |
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| 基金项目： | 国家自然科学基金(No.91022032,31070730,20871001,50973001,21173001);安徽省教育厅重大项目(No.ZD2007004-1);安徽省自然科学基金(No.11040606M33)资助项目 |
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| 摘 要： | 利用表面活性剂十六烷基三甲基溴化铵(CTAB)、十二烷基苯磺酸钠(SDBS)作为结构导向剂,在水热条件下合成了由纳米片组装而成的Bi2WO6花状多孔微球的新颖结构。探讨了反应时间、表面活性剂种类等因素对产物形貌、结构和性能的影响。在氙灯照射下,发现使用CTAB所得到的Bi2WO6比添加SDBS所得到的样品具有更高的催化罗丹明B降解的活性,原因是前者具有较大的比表面积和吸收阈值。同时提出了晶体可能的生长机理为各向异性生长特性和自组装-Ostwald熟化过程的结合。
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| 关 键 词： | Bi2WO6 光催化活性 表面活性剂 环境处理 |
Flower-Like Bi2WO6 Porous Microspheres: Assembly and Photocatalytic Performance |
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| ZHANG Jian,ZHANG Yan,SHEN Yu-Hu,LI Cun and XIE An-Jian. Flower-Like Bi2WO6 Porous Microspheres: Assembly and Photocatalytic Performance[J]. Chinese Journal of Inorganic Chemistry, 2012, 28(4): 739-744 |
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| Authors: | ZHANG Jian ZHANG Yan SHEN Yu-Hu LI Cun XIE An-Jian |
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| Affiliation: | School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China,School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China,School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China,School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China and School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China |
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| Abstract: | The new flower-like Bi2WO6 porous microspheres self-assembled by nanosheets were synthesized through a simple hydrothermal process using surfactants (CTAB, or SDBS) as the structure-directing agent. The effect of reaction time and surfactants played important roles in the morphology and size of Bi2WO6. The Bi2WO6 prepared in the presence of CTAB showed a higher photocatalytic activity for degradation of rhodamine-B (RhB) than that of the sample prepared in the presence of SDBS under Xe lamp irradiation, and the reason is that the former has larger surface area and wider absorption range. Meanwhile, the intrinsic anisotropic growth nature and self-assembly-Ostwald ripening were proposed for the formation mechanism. |
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| Keywords: | Bi2WO6 photocatalytic activity surfactant environmental treatment |
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