Micro/nanoplastics have raised worldwide concern with extensive research on its transfer, toxicity and removal. However, the primary environmental process-adsorption of nanoplastics has not been uncovered since the discovery of nanosized plastics. Here, we synthesized nanoscale polystyrene (PS) particles with mean diameter of ∼40 nm to avoid unknown properties from purchased one, and thoroughly investigated its adsorption towards two typical pharmaceuticals and personal care products (PPCPs) with distinct characteristics, which are antibiotic (ciprofloxacin) and endocrine disruptor (bisphenol-A). Moreover, UV radiation is applied to simulate aging process in natural cases, and the carbonyl index derived from FTIR spectra increased clearly from 0.183 to 0.387. The adsorption capacity at equilibrium of CIP and BPA increased from 0.15 to 4.07 to 4.92 and 8.71 mg/g after weathering, respectively. Besides, the effect of environmental factors (pH, humic acid, salinity and cations) was also studied. Furthermore, electrosorption technology is applied to remove nanoplastics in solution for the first time, with the capacity of 0.707 g nano-polystyrene/g AC and 0.322 g aged-nano-polystyrene/g AC, suggesting that adsorption under electric field is presumably a feasible tertiary treatment method targeted at nanoplastics in wastewater treatment plants (WWTPs).

微米/纳米塑料已引起广泛关注，涉及其转移，毒性和去除的广泛研究。然而，自从发现纳米塑料以来，尚未发现纳米塑料的主要环境吸附过程。在这里，我们合成了平均直径约为40 nm的纳米级聚苯乙烯（PS）颗粒，以避免购买的颗粒具有未知的特性，并彻底研究了其对两种具有不同特征的典型药物和个人护理产品（PPCP）的吸附，它们是抗生素（环丙沙星） ）和内分泌干扰物（双酚A）。此外，在自然情况下，使用紫外线辐射来模拟老化过程，并且从FTIR光谱得出的羰基指数从0.183明显增加到0.387。CIP和BPA平衡时的吸附容量从0.15增加到4.07到4。风化后分别为92和8.71mg / g。此外，还研究了环境因素（pH，腐殖酸，盐度和阳离子）的影响。此外，首次采用电吸附技术去除溶液中的纳米塑料，其容量为0.707 g纳米聚苯乙烯/ g AC和0.322 g老化的纳米聚苯乙烯/ g AC，这表明在电场下吸附可能是可行的。针对废水处理厂（WWTP）中的纳米塑料的第三级处理方法。