| Cd/CdS光催化降解甲基橙的研究 |
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| 引用本文： | 崔玉民,范少华. Cd/CdS光催化降解甲基橙的研究[J]. 功能材料, 2005, 36(6): 859-861,868 |
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| 作者姓名： | 崔玉民 范少华 |
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| 作者单位： | 阜阳师范学院,化学系,安徽,阜阳,236032;阜阳师范学院,化学系,安徽,阜阳,236032 |
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| 基金项目： | 安徽省教育厅自然科学基金资助项目(2004kj303)，安徽省“十五”优秀人才——安徽省高校中青年学科带头人培养对象计划经费资助项目(2003YD022) |
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| 摘 要： | 采用胶体化学法制备表面富镉的Cd／CdS纳米粒子为催化剂对水溶液中甲基橙的光催化降解进行了研究。探讨了光催化反应机理，讨论了光催化剂用量，双氧水的用量，试液的pH值，光照时间与甲基橙脱色率的关系。实验结果表明，当甲基橙起始浓度为20mg／L，Cd／CdS用量为0．500g，双氧水用量为5．88mmol／L，pH值为7．0时，光照6h，甲基橙的脱色率可达到95．5％。
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| 关 键 词： | 光催化降解 甲基橙 CdS 表面富镉 |
| 文章编号： | 1001-9731(2005)06-0859-03 |
A study on photocatalytic degradation of methyl orange by Cd/CdS |
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| Cui Yu-min,FAN Shao-hua. A study on photocatalytic degradation of methyl orange by Cd/CdS[J]. Journal of Functional Materials, 2005, 36(6): 859-861,868 |
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| Authors: | Cui Yu-min FAN Shao-hua |
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| Abstract: | In this article,photocatalytic degradation of methyl orange in aqueous solution has been studied with surface Cd-rich CdS nanoparticles which were prepared by colloid chemistry process. Reaction mechanism of photocatalysis was probed. The relationships between quantity of photocatalyst,quantity of H_2O_2,pH values, illumination time and the decolorizing efficiency of methyl orange were discussed. The results show that the decolorizing efficiency of methyl orange can reach 95.5% by using Cd/CdS as heterogeneous photocatalyst,with initial concentration of methyl orange=20mg/L,the quantity of catalyst=0.500g,quantity of H_2O_2=~5.88 mmol/L, pH=7.0, illumination time=6h. |
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| Keywords: | photocatalytic degradation methyl orange CdS surface Cd-rich |
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