Journal
WATER RESEARCH
Volume 184, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2020.116100
Keywords
Microplastics; Nanoplastics; Interfacial interaction; Removal; Electrosorption
Funding
- National Natural Science Foundation of China [21777118]
Ask authors/readers for more resources
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 uncov-ered since the discovery of nanosized plastics. Here, we synthesized nanoscale polystyrene (PS) particles with mean diameter of similar to 40 nm to avoid unknown properties from purchased ones, 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 nano plastics in wastewater treatment plants (WWTPs). (C) 2020 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available