| TiO2光催化降解活性艳红X-3B的动力学研究 |
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| 引用本文： | 汤心虎,谭淑英,李明玉. TiO2光催化降解活性艳红X-3B的动力学研究[J]. 水处理技术, 2005, 31(3): 46-48 |
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| 作者姓名： | 汤心虎 谭淑英 李明玉 |
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| 作者单位： | 暨南大学理工学院环境工程系,广东,广州,510632;暨南大学理工学院环境工程系,广东,广州,510632;暨南大学理工学院环境工程系,广东,广州,510632 |
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| 基金项目： | 广东省科技计划项目(2002C31622)。 |
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| 摘 要： | 研究了pH、TiO2投加量、H2O2用量和紫外线光强对光催化降解活性艳红X-3B动力学的影响。结果表明，TiO2光催化降解活性艳红X-3B的速率遵循准一级反应动力学方程，表观反应速率常数随溶液pH升高而下降；TiO2和H2O2的投加量均存在一个最佳值，在本实验条件下，它们分别为2．0g／L和0．2mL／50mL，低于或超过该值，都会导致反应速率下降；提高入射光强可以明显加快光催化降解速率。
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| 关 键 词： | Ti02 光催化降解 动力学 活性艳红X-3B |
| 文章编号： | 1000-3700(2005)03-0046-03 |
KINETIC STUDY ON PHOTOCATALYTIC DEGRADATION OF REACTIVE RED X-3B BY TITANIUM DIOXIDE |
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| Tang Xin-hu,Tan Shu-ying,LI Ming-yu. KINETIC STUDY ON PHOTOCATALYTIC DEGRADATION OF REACTIVE RED X-3B BY TITANIUM DIOXIDE[J]. Technology of Water Treatment, 2005, 31(3): 46-48 |
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| Authors: | Tang Xin-hu Tan Shu-ying LI Ming-yu |
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| Abstract: | Kinetics of phottocatalytic degradation of Dyes was investigated at different reaction conditions using Reactive Red X-3B as a model pollutant. It was experimentally found that photocatalytic degradation of Reactive Red X-3B by titanium dioxide was one-order kinetic reaction.The apparent rate constant decreased were 0.2mL/50m and 2.0g/L respectively. The degradation rate of Reactive Red X-3B could be enhanced by increasing radiation intensity. |
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| Keywords: | titanium dioxide photocatalytic degradation kinetics reactive red X-3B |
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