| 磺胺二甲嘧啶在土壤中的吸附和光催化降解作用 |
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| 引用本文： | 张元,许婧文,梁巍,薛爱芳,陈浩.磺胺二甲嘧啶在土壤中的吸附和光催化降解作用[J].湖北农业科学,2011(20):4163-4165. |
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| 作者姓名： | 张元 许婧文 梁巍 薛爱芳 陈浩 |
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| 作者单位： | 华中农业大学理学院;华中农业大学资源与环境学院; |
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| 基金项目： | 中央高校基本科研业务费专项资金资助项目(2009JC009); 国家大学生创新性实验计划项目 |
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| 摘 要： | 研究了磺胺二甲嘧啶(Sulfamethazine,SM2)在土壤中的等温吸附和光催化降解特征,考察了催化剂TiO2用量、土壤水分含量、光照时间和初始浓度等因素对降解效果的影响。结果表明,土壤表面对SM2吸附较小,90%以上的SM2以游离形式存在于土壤中;催化剂TiO2可明显促进SM2的光降解,增加土壤水分含量和延长光照时间,均能显著提高SM2的光降解率,而SM2的初始浓度对光降解效果影响较小。
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| 关 键 词： | 磺胺二甲嘧啶 土壤 吸附 光催化降解 |
Adsorption and Photocatalytic Degradation of Sulfamethazine in Soil |
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| ZHANG Yuana,XU Jing-wena,LIANG Weib,XUE Ai-fanga,CHEN Haoa.Adsorption and Photocatalytic Degradation of Sulfamethazine in Soil[J].Hubei Agricultural Sciences,2011(20):4163-4165. |
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| Authors: | ZHANG Yuana XU Jing-wena LIANG Weib XUE Ai-fanga CHEN Haoa |
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| Institution: | ZHANG Yuana,XU Jing-wena,LIANG Weib,XUE Ai-fanga,CHEN Haoa(a.College of Science,b.College of Resources and Environment,Huazhong Agricultural University,Wuhan 430070,China) |
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| Abstract: | The adsorption and photocatalytic degradation of sulfamethazine in the soil were investigated.The effects of catalyst TiO2 dosage,water content,irradiation time,and initial concentration were studied respectively.The results showed that only a small quantity of sulfamethazine could be adsorped by the soil and 90% of sulfamethazine was free in the soil.Catalyst TiO2 accelerated the photodegradation of sulfamethazine.The degration rate increased with the increasing of the water content of the soil and irradia... |
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| Keywords: | sulfamethazine soil adsorption photocatalytic degradation |
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