In order to evaluate the carrier effect of microplastics on organic pollutants,the adsorption behav-ior of p-chloro-m-xylenol(PCMX)and carbamazepine(CBZ)on polyamide(PA)microplastics in water environment was investigated.The results show that the adsorption process of PA microplastics was accu-rately comepleted by the Freundlich and pseudo-second-order kinetic theories,indicating that the whole ad-sorption process is a multi-layer adsorption of heterogeneous surface dominated by chemical adsorption,and involves the multi-stage interaction of intra-particle diffusion and hydrophobic distribution.Different pH and salinity will affect the degree of electrostatic interaction or ion exchange,which will change the adsorp-tion efficiency.This study can provide a theoretical basis for microplastics as carriers to migrate organic pollutants.
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