| 高比表面积蠕虫状介孔SnO2的合成与表征 |
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| 引用本文： | 蒋海燕,戴洪兴,夏云生,何洪.高比表面积蠕虫状介孔SnO2的合成与表征[J].催化学报,2010,31(3):295-301. |
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| 作者姓名： | 蒋海燕 戴洪兴 夏云生 何洪 |
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| 作者单位： | 北京工业大学环境与能源工程学院化学化工系,北京,100124 |
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| 基金项目： | 北京市教委创新团队(PHR200907105);;北京市教委科技发展计划重点项目暨北京市自然科学基金(B类)重点项目(KZ200610005004) |
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| 摘 要： | 以聚乙二醇 (PEG) 为模板剂, 氯化锡为锡源, 尿素为沉淀剂, 采用水热法合成出高比表面积的蠕虫状介孔四方相金红石型 SnO2. 考察了 PEG 分子量及其浓度、水热温度和焙烧温度对 SnO2 孔结构和形貌的影响. 采用 X 射线衍射、N2 吸附-脱附、透射电镜、红外光谱和紫外-可见光谱等技术对样品进行了表征. 结果表明, 模板剂可被水洗除去, PEG 分子量对介孔 SnO2 的比表面积影响不大, 而 PEG 浓度、水热温度和焙烧温度的影响较大. 在以分子量为 6000 的 PEG 与 Sn 的摩尔比为 0.01 的条件下, 于 120 oC 水热处理 29 h 后可合成出比表面积高达 161 m2/g 和平均孔径为 2.6 nm 的蠕虫状介孔 SnO2. 所制得样品具有较好的紫外光吸收性能, 适宜用作催化剂、载体和气体传感器等.
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| 关 键 词： | 水热合成法 蠕虫状介孔二氧化锡 聚乙二醇 吸光性能 |
| 收稿时间： | 2010-03-25 |
Synthesis and Characterization of Wormhole-Like Mesoporous SnO2 with High Surface Area |
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| JIANG Haiyan,DAI Hongxing,XIA Yunsheng,HE Hong.Synthesis and Characterization of Wormhole-Like Mesoporous SnO2 with High Surface Area[J].Chinese Journal of Catalysis,2010,31(3):295-301. |
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| Authors: | JIANG Haiyan DAI Hongxing XIA Yunsheng HE Hong |
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| Institution: | Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China |
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| Abstract: | High-surface-area wormhole-like mesoporous SnO2 with a tetragonal rutile-type structure was fabricated adopting the hydrothermal strategy using poly(ethylene glycol) (PEG) as the template, tin chloride as the tin source, and urea as the precipitating agent. The effects of PEG with different molecular weights and its concentration, hydrothermal temperature, and calcination temperature on the pore structure and morphology of SnO2 were examined. The physical properties of these materials were characterized by ... |
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| Keywords: | hydrothermal synthesis wormhole-like mesoporous tin dioxide poly(ethylene glycol) light absorption property |
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