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改性炭对磺胺甲噁唑的吸附及解吸特性 被引量：1

Adsorption of sulfamethoxazole on modified activated carbon and its release behavior
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摘要 采用商品活性炭和金属氧化物改性炭作为吸附剂,研究了几种活性炭对磺胺甲噁唑(SMZ)的吸附及解吸特性。结果表明:SMZ在几种活性炭上的吸附动力学符合拟二级动力学方程;SMZ的吸附均可采用Freundlich、Langmuir和Langmuir-Freundlich模型进行拟合,Langmuir-Freundlich吸附模型能更好地描述活性炭和改性炭对SMZ的吸附行为;铁、锰氧化物的存在对活性炭的比表面或者孔结构影响不大,并且其对活性炭吸附水中SMZ的性能影响甚微;与AC-Fe和AC-Mn相比,AC-0上吸附的SMZ更易解吸,改性炭负载的金属氧化物与SMZ的表面络合作用增强了AC-Fe和AC-Mn对SMZ的化学吸附,并且改性炭的MnOx和FeOx能氧化降解部分SMZ。 采用商品活性炭和金属氧化物改性炭作为吸附剂,研究了几种活性炭对磺胺甲噁唑(SMZ)的吸附及解吸特性。结果表明:SMZ在几种活性炭上的吸附动力学符合拟二级动力学方程;SMZ的吸附均可采用Freundlich、Langmuir和Langmuir-Freundlich模型进行拟合,Langmuir-Freundlich吸附模型能更好地描述活性炭和改性炭对SMZ的吸附行为;铁、锰氧化物的存在对活性炭的比表面或者孔结构影响不大,并且其对活性炭吸附水中SMZ的性能影响甚微;与AC-Fe和AC-Mn相比,AC-0上吸附的SMZ更易解吸,改性炭负载的金属氧化物与SMZ的表面络合作用增强了AC-Fe和AC-Mn对SMZ的化学吸附,并且改性炭的MnOx和FeOx能氧化降解部分SMZ。
作者 万俊力 邓慧萍
机构地区 同济大学长江水环境教育部重点实验室
出处 《土木建筑与环境工程》 CSCD 北大核心 2012年第S2期103-107,共5页 Journal of Civil,Architectural & Environment Engineering
基金 国家水体污染控制与治理科技重大专项资助项目(2008ZX07425-007) 教育部培育项目(708034)
关键词 磺胺甲噁唑(SMZ) 改性炭 吸附 解吸 sulfamethoxazole(SMZ) modified activated carbon adsorption desorption
分类号 TU [建筑科学]
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参考文献24

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二级参考文献34

共引文献24

同被引文献35

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土木建筑与环境工程
2012年 第S2期

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