| 掺铁二氧化钛纳米晶的制备及其光催化性能 |
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| 引用本文： | 钟敏,韦之豪,司平占,李红,卫国英,葛洪良,韩高荣.掺铁二氧化钛纳米晶的制备及其光催化性能[J].硅酸盐学报,2010,38(1). |
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| 作者姓名： | 钟敏 韦之豪 司平占 李红 卫国英 葛洪良 韩高荣 |
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| 作者单位： | 1. 中国计量学院材料学院纳米材料化学制备室,杭州,310018
2. 浙江大学,硅材料国家重点实验室,杭州,310027 |
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| 基金项目： | 国家自然科学基金(10874159);;浙江省自然科学基金(Y407322);;浙江省教育厅科研(20070661)资助项目 |
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| 摘 要： | 通过溶胶-凝胶法室温制备了掺杂铁二氧化钛纳米晶光催化剂。采用透射电子显微镜、X射线衍射仪、能谱元素分析仪、紫外-可见分光光度计等对所得产物进行表征。以甲基橙为目标降解物,对未掺杂的二氧化钛纳米晶及掺杂铁的二氧化钛纳米晶进行了光催化降解性能研究,并对其降解机理进行了分析。结果表明:适量的铁掺杂有利于提高二氧化钛纳米晶的光催化性能和对甲基橙的降解率。铁的最佳掺杂量为25%Fe占(Ti+Fe)的摩尔分数]。掺杂铁的二氧化钛纳米晶光催化性能优于纯二氧化钛纳米晶,在光照150min后,甲基橙的降解率达75%以上。
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| 关 键 词： | 溶胶-凝胶法 铁 掺杂 二氧化钛 光催化性能 |
PREPARATION OF IRON-DOPED TITANIA NANOCRYSTALLINE GRAINS AND ITS PHOTOCATALYTIC PROPERTY |
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| ZHONG Min,WEI Zhihao,SI Pingzhan,LI Hong,WEI Guoying,GE Hongliang,HAN Gaorong.PREPARATION OF IRON-DOPED TITANIA NANOCRYSTALLINE GRAINS AND ITS PHOTOCATALYTIC PROPERTY[J].Journal of The Chinese Ceramic Society,2010,38(1). |
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| Authors: | ZHONG Min WEI Zhihao SI Pingzhan LI Hong WEI Guoying GE Hongliang HAN Gaorong |
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| Affiliation: | 1.College of Materials Science and Engineering;China Jiliang University;Hangzhou 310018;2.State Key Laboratory of Silicon Materials;Zhejiang University;Hangzhou 310027;China |
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| Abstract: | Iron-doped titania (TiO2) nanocrystalline grains were prepared by sol-gel method at room temperature.The samples were characterized by using transmission electron microscope,X-ray diffractometer,energy dispersive spectrometry and ultaviolet-visible spectrophotometer.The photocatalytic property of titania nanocrystalline grains and iron-doped titanium dioxide nanocrystalline grains were investigated by degrading the methyl orange solution.The results show that the appropriate content of iron can effectively ... |
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| Keywords: | sol-gel iron dope titania photocatalytic property |
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