Abstract
In the soil environment, microplastics (MPs) commonly coexist with organic pollutants such as nonylphenol (NP), affecting the migration of NP through adsorption/desorption. However, few studies have focused on the interaction between NP and MPs in soil, especially for MPs of different types and ageing characteristics. In this study, non-polar polypropylene (PP) and polar polyamide (PA) MPs were aged either photochemically (144 h) or within soil (60 days), then used to determine the effect of 5% MPs on the adsorption behaviour of NP (0.1-4.0 mg/L) in soil. Results showed that both ageing processes significantly promoted the conversion of -CH3 groups to C-O and C=O on the surface of PPMPs, while PAMPs exhibited amide groups changes and a reduction in average particle size due to ageing. Additionally, both ageing processes promoted the adsorption of NP by soil containing PPMPs, due to an increase in oxygen-containing functional groups and specific surface area. In contrast, the NP adsorption capacity of soil con
| Original language | English |
|---|---|
| Article number | 117254 |
| Pages (from-to) | 1-17 |
| Number of pages | 17 |
| Journal | Ecotoxicology and Environmental Safety |
| Volume | 287 |
| DOIs | |
| Publication status | Published - 15 Nov 2024 |
Bibliographical note
Funding Information:This research was financially Supported by the National Natural Science Foundation of China (Nos. 41977325 and 72074136), Projects of International Cooperation and Exchanges NSFC-FWO (Nos. 42211530483 and VS03323N), The Taishan Scholar Youth Expert Program of Shandong Province (No. tsqn202103020) and Open fund project of the State Environmental Protection Key Laboratory for Lake Pollution Control, Chinese Research Academy of Environmental Sciences (Nos. 2022HPZD-01).
Publisher Copyright:
© 2024 The Authors
Keywords
- NonylphenoL,Polypropylene,Polyamide,Polarity Ageing process Adsorption behaviour