| LaCoO_3对TNT废水光催化降解的实验研究 |
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| 引用本文： | 吴秉衡,胡双启.LaCoO_3对TNT废水光催化降解的实验研究[J].火炸药学报,2008,31(6). |
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| 作者姓名： | 吴秉衡 胡双启 |
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| 作者单位： | 中北大学化工与环境学院,山西,太原,030051 |
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| 基金项目： | 国家自然科学基金资助项目
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| 摘 要： | 用柠檬酸络合法制备出钙钛矿型钴酸镧（LaCoO3），研究了钙钛矿型LaCoO3对TNT炸药废水的光催化处理效果。根据废水吸光度和CODcr去除率确定了最佳反应条件，此时溶液中TNT降解率和CODcr去除率最大。pH值对反应也有较大影响。最适反应条件为LaCoO3的摩尔浓度为0．002mol／L，反应pH值为8，光照时间为60min；在该反应条件下，TNT降解率达57．8％。
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| 关 键 词： | 应用化学 光催化 TNT废水 废水处理 |
Experimental Research on LaCoO_3 in Treatment of Wastewater Containing TNT |
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| WU Bing-heng,HU Shuang-qi.Experimental Research on LaCoO_3 in Treatment of Wastewater Containing TNT[J].Chinese Journal of Explosives & Propellants,2008,31(6). |
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| Authors: | WU Bing-heng HU Shuang-qi |
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| Affiliation: | WU Bing-heng,HU Shuang-qi(School of Chemical Engineering , Environment,North University of China,Taiyuan 030051,China) |
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| Abstract: | The perovskite-type LaCoO3 was successfully prepared by La(NO3)3 and Co(NO3)2 in citrate acid solution,where the citrate acid was used as chelating agent and fuel.Photocatalytic activities of perovskite LaCoO3 to TNT degradation were studied.For LaCoO3 catalyst,the optimum conditions obtained from the absorbency of waste water and remove rate of CODcr were that the molar concentration of LaCoO3 is 0.002mol/L,pH=8,and reaction time is 60min.Under the optimum reaction conditions,the highest degradation rate o... |
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| Keywords: | LaCoO3 |
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