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银杏叶粉末活性炭对水中DBP的吸附效能与机理 被引量:5

Adsorption Performance and Mechanism of Ginkgo Leaves Powder Acticarbon on DBP in Water
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摘要 以银杏叶为原料,采用氯化锌活化法制备活性炭,对银杏叶粉末活性炭吸附水中邻苯二甲酸二丁酯(DBP)的平衡、动力学和热力学特性以及pH、反应时间和温度对DBP吸附率的影响进行研究。结果表明,吸附符合Freundlich等温模型,吸附过程符合伪二级动力学模型,吸附率受温度的影响较小,吸附是自发的,碱性条件更有利于吸附的发生。 Acticarbon derived from ginkgo leaves was prepared with Zinc chloride.The adsorption performance and mechanism of the ginkgo leaves acticarbon on DBP in water were studied,such as the absorption equilibrium of acticarbon to DBP,the characteristics of dynamics and thermodynamics,the effect of pH,reation time and temperature on the absorption rate of DBP.The results showed that the adsorption of the ginkgo leaves acticarbon on DBP accorded with the Freundlich isotherm.The adsorption process was Pseudo-second-order reaction.The adsorption efficiency was affected smaller by the temperature.The adsorption was spontaneous and feasible,and alkaline condition was more conductive to it.
出处 《湖北农业科学》 北大核心 2013年第10期2290-2294,2298,共6页 Hubei Agricultural Sciences
基金 南京林业大学2011年大学生科技创新项目(201114) 南京林业大学2012年大学生实验室创新项目(201220) 住房和城乡建设部科学技术项目(2011-K7-2) 2012年国家级高等学校大学生实践创新训练计划项目 2012年江苏省高等学校大学生实践创新训练计划重点项目 南京林业大学2012年大学生实践创新训计划立项项目 江苏省高校自然科学基础研究项目(12KJB560004) 江苏高校优势学科建设工程资助项目(PAPD)
关键词 银杏叶粉末活性炭 邻苯二甲酸二丁酯(DBP) 吸附 效能 机理 ginkgo leaves powder acticarbon DBP adsorption performance mechanism
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参考文献10

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