| TiO2/粉煤灰的制备及光催化性能研究 |
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| 引用本文： | 嘎日迪,张宇,袁立娟,徐艳燕,照日格图.TiO2/粉煤灰的制备及光催化性能研究[J].环境化学,2007,26(4):444-447. |
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| 作者姓名： | 嘎日迪 张宇 袁立娟 徐艳燕 照日格图 |
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| 作者单位： | 内蒙古师范大学化学与环境科学学院,呼和浩特,010022 |
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| 基金项目： | 教育部科学技术研究项目 |
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| 摘 要： | 以钛酸丁酯为原料,以粉煤灰微珠为载体,采用溶胶-凝胶法制备了TiO2/粉煤灰光催化剂.负载于粉煤灰表面的TiO2平均粒径约为7nm,晶型为锐钛矿型,该催化剂在太阳光下降解初始浓度为10mg·l-1的甲基橙,经6h,甲基橙的降解率可达98.9%,将其应用于实际样品的测定,经3h降解率可达96.1%,显示出优越的光催化降解性能.
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| 关 键 词： | TiO2 粉煤灰 光催化 溶胶-凝胶法 甲基橙 粉煤灰微珠 光催化性能 研究 CHARACTERIZATION PREPARATION 光催化降解性能 显示 测定 样品 应用 降解率 甲基橙 初始浓度 太阳光 光催化剂 锐钛矿型 晶型 平均粒径 表面 负载 |
| 修稿时间： | 2006-08-17 |
STUDY ON PREPARATION AND CHARACTERIZATION OF TiO2/FLY ASH |
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| Garidi,ZHANG Yu,YUAN Li-juan,XU Yan-yan,ZHAO Ri Ge-tu.STUDY ON PREPARATION AND CHARACTERIZATION OF TiO2/FLY ASH[J].Environmental Chemistry,2007,26(4):444-447. |
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| Authors: | Garidi ZHANG Yu YUAN Li-juan XU Yan-yan ZHAO Ri Ge-tu |
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| Institution: | Chemistry and Environmental Science College, Inner Mongolia Normal University, Huhhot, 010022, China |
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| Abstract: | The photocatalysts of TiO2/fly ash were prepared by sol-gel process.It was founded that TiO2 nanoparticles on the surface of fly ash possess anatase structure,the size of which was about 7nm.The photocatalytic degradations of methyl orange and dyeing wastewater in the sunlight were investigated with the photocatalysts,the degradation rate of methyl orange after 6h of reaction was 98.9%,the degradation rate of dyeing wastewater after 3h was 96.1%.It reveals that the photocatalysts have stronger photocatalytic activity. |
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| Keywords: | TiO2 fly ash photocatalysts sol-gel process methyl orange |
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