| Cu(Ⅱ)/TiO_2/H_2O_2联合体系中甲基橙的太阳光催化降解 |
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| 引用本文： | 张胜利,罗和安,陈小明,曾金祥,黄姣.Cu(Ⅱ)/TiO_2/H_2O_2联合体系中甲基橙的太阳光催化降解[J].化学研究,2004,15(2):9-12. |
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| 作者姓名： | 张胜利 罗和安 陈小明 曾金祥 黄姣 |
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| 作者单位： | 湘潭大学,化学学院,湖南,湘潭,411105 |
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| 摘 要： | 以钛酸四丁酯Ti(OC4H9)4]为原料通过回流水解,制备了过渡金属Cu(Ⅱ)离子掺杂的TiO2光催化剂.通过TG DTA,IR,XRD对其进行了表征.结果表明:未经热处理的Cu(Ⅱ)/TiO2粉体为锐钛矿和板钛矿的混合晶型.在H2O2存在,太阳光照射下,甲基橙在该悬浮体系中迅速褪色降解,5min内降解率达90%以上.同时研究了pH值、H2O2浓度、甲基橙用量、光照条件、分散方式等对光催化剂活性的影响.
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| 关 键 词： | 光催化剂 TiO2 甲基橙 太阳光 H2O2 |
| 文章编号： | 1008-1011(2004)02-0009-04 |
| 修稿时间： | 2004年9月8日 |
Solar Photocatalytic Degradation of Methyl Orange in Cu(Ⅱ)/TiO2/H2O2 Suspension |
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| ZHANG Sheng-li,LUO He-an,CHEN Xiao-ming.Solar Photocatalytic Degradation of Methyl Orange in Cu(Ⅱ)/TiO2/H2O2 Suspension[J].Chemical Research,2004,15(2):9-12. |
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| Authors: | ZHANG Sheng-li LUO He-an CHEN Xiao-ming |
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| Institution: | ZHANG Sheng-li,LUO He-an,CHEN Xiao-ming~ |
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| Abstract: | Cu(Ⅱ)-doped TiO_(2) photocatalyst was prepared with titanium tetrabutoxide as a precursor under refluxing. The results of TG-DTA, IR, XRD showed that unheated sample was a mixed phase of anatase and brookite. By addition of hydrogen peroxide, methyl orange can be rapidly degradated in Cu(Ⅱ)/TiO_(2) suspension and the degradtion rate was up to 90 % in 5 min.The effect of pH value, (H_(2)O_(2)) concentration, different lights, and ultrasound irradiation on the rate of photocatalytic degradation of methyl orange was also investigated. |
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| Keywords: | photocatalyst Cu(Ⅱ)/TiO_2 methyl orange sunlight H_2O_2 |
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