微塑料吸附有机污染物的研究进展  

Research progress on the adsorption behavior of organic pollutants on microplastics

作　　者：高山雪 陈蕾[1] GAO Shan-xue;CHEN Lei(School of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]南京林业大学土木工程学院,江苏南京210037

出　　处：《应用化工》2023年第7期2151-2156,2164,共7页Applied Chemical Industry

基　　金：国家自然科学基金项目(42077323)。

摘　　要：总结了微塑料对疏水性和亲水性有机污染物的吸附行为,疏水性有机物主要是多氯联苯和多环芳烃,亲水性有机物有抗生素。分析了可能的吸附机理,其中疏水分配作用为最常见机制,还有氢键相互作用、π-π相互作用、静电相互作用、范德华力和孔隙填充等。有机污染物和微塑料的吸附作用会受到微塑料的比表面积、老化程度、结晶度等的影响;外部环境的pH值、盐度和溶解有机物的差异也会影响吸附容量。对未来研究进行展望,包括研究混合、老化和纳米尺度微塑料的吸附行为和生物体内的毒性机制等。This paper summarises the adsorption behaviour of microplastics on hydrophobic and hydrophilic organic pollutants,mainly PCBs and PAHs for hydrophobic organics and antibiotics for hydrophilic organics.Possible adsorption mechanisms are analysed,with hydrophobic partitioning being the most common mechanism,hydrogen bonding interactions,π-πinteractions,electrostatic interactions,van der Waals forces and pore filling are also included.The adsorption of organic pollutants and microplastics can be influenced by the specific surface area,ageing and crystallinity,besides differences in the external environmental pH,salinity and dissolved organic matter can also affect the adsorption capacity.The article concludes with an outlook for future research,including studying the adsorption behaviour of mixed,aged and nanoplastics and the mechanisms of toxicity in living organisms,etc.

关 键 词：微塑料 吸附 有机污染物 吸附机理 影响因素 

分 类 号：TQ20[化学工程—有机化工] TQ03[环境科学与工程—环境工程] X52X55