| 几种离子对光催化降解罗丹明B的影响 |
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| 引用本文： | 黄雅丽,徐清艳.几种离子对光催化降解罗丹明B的影响[J].闽江学院学报,2013(5):129-133. |
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| 作者姓名： | 黄雅丽 徐清艳 |
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| 作者单位： | 闽江学院化学与化学工程系,福建福州350121 |
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| 基金项目： | 福建省教育厅科技项目（JA11198,JB10123,JB11140） |
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| 摘 要： | 采用罗丹明B作为目标降解物,考察了几种离子对光催化降解罗丹明B脱色率的影响.结果显示,低浓度的Ca2＋和Al3＋对罗丹明B的脱色率影响不明显,但是当它们的浓度增加到一定值后,则脱色率明显下降；当Fe3＋的浓度为0.2 ～0.5 mmol·L-1时,其对光催化降解罗丹明B有一定的促进作用,继续增加Fe3＋的浓度,反而起到明显的抑制作用；Cu2＋对光催化降解罗丹明B具有显著的抑制作用；Na＋、Cl-、NO3-、SO42-对光催化降解的影响均不明显,有些离子的影响机制有待进一步研究.
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| 关 键 词： | 光催化降解 罗丹明B 离子 脱色率 |
Effect of several ions on photocatalytic degradation of Rhodamine B |
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| HUANG Ya-li,XU Qing-yan.Effect of several ions on photocatalytic degradation of Rhodamine B[J].Journal of Minjiang University,2013(5):129-133. |
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| Authors: | HUANG Ya-li XU Qing-yan |
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| Institution: | ( Department of Chemistry and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350121, China) |
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| Abstract: | This paper adopted Rhodamine B as a target degradation material. The effects on the decoloriza- tion rate of photocatalytic degradation of Rhodamine B of some irons have been studied. The results showed that the low concentration of Ca2＋ and AI3. had unobvious effect on the decolorization rate. But when their concentration increased to a certain value, the decolorization rate decreased evidently. When the content of Fe3 ＋ ranged from 0.2 mmol ·L-1 to 0.5 mmol ·L-1, the decolorization rate increased. However,Fe3＋ showed significantly inhibition with further raising the concentration. Cu2. had strongly negative influence on the photocatalytic reaction. Na＋ ,CI- , NO3 and SO42- had little impact on catalytic degradation. The mechanisms of the effect of some ions need further study. |
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| Keywords: | photocatalytic degradation Rhodamine B ions decolorization rate |
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