活性炭对水中吡虫啉的吸附性能研究  

Study of adsorption properties of activated carbon on imidacloprid in water

作　　者：孙磊 杨嘉伟 王阳阳 王嘉宁 杨柳[1] SUN Lei;YANG Jiawei;WANG Yangyang;WANG Jianing;YANG Liu(College of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou Gansu 730070,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《石油化工应用》2024年第12期110-113,共4页Petrochemical Industry Application

摘　　要：以性能优良易于获得的活性炭(AC)为吸附剂,用于吸附去除水中的吡虫啉(IMI)。在15℃下,其最大吸附量为324.93 mg/g。由表征分析可知,AC具有良好的孔隙结构,其比表面积为160.5 m^(2)/g。吸附动力学、等温线及热力学分析表明,其对IMI的吸附过程包括化学吸附和物理吸附,是一个自发、放热、随机性递增的过程,推断AC对IMI的吸附机理主要是孔隙填充、含氧官能团络合(氢键和范德华力)和π-π共轭作用。Activated carbon(AC),which is easily available with good properties,was used as an adsorbent for the adsorption and removal of imidacloprid(IMI)from water.The maximum adsorption capacity was 324.93 mg/g at 15℃.From the characterization analysis,it was found that AC has a good pore structure with a specific surface area of 160.5 m^(2)/g.From the adsorption kinetics,isotherm and thermodynamic analyses,its adsorption process of imidacloprid included chemisorption and physisorption,which was a spontaneous,exothermic and stoichiometric incremental process,and it was deduced that the adsorption mechanism of AC on IMI was mainly the pore-filling,the complexation of oxygen-containing functional groups(hydrogen bonding and van der Waals'force)and theπ-πconjugation effect.

关 键 词：活性炭 吸附 吡虫啉 

分 类 号：X703[环境科学与工程—环境工程]