数字农科院2.0

Transport of functional group modified polystyrene nanoplastics in binary metal oxide saturated porous media

文献类型: 外文期刊

作者: Zhang G.; Ma Q.; Yu M.; Yin J.; Sun H.; Wang N.; Wang J.; Yin X.

作者机构:

关键词: Ionic strength; Metals; Morphology; Polystyrenes; Surface morphology; Surface roughness; Binary metal oxides; Composite metal oxides; Metal-oxide; Nanoplastics; Porous medium; Saturated porous media; Soil environment; Solution chemistry; Transport; Transport and transformation; Porous materials; aluminum; aluminum hydroxide; cation; functional group; iron; manganese oxide; metal oxide; microplastic; monovalent cation; nanoplastic; polystyrene; polystyrene nanoplastic; unclassified drug; nanocomposite; nanomaterial; plastic; polymer; porous medium; surface roughness; aqueous solution; Article; coating (procedure); controlled study; mathematical model; migration; physical chemistry; soil pollution; soil treatment; static electricity; surface area; surface property; theoretical study; zeta potential

期刊名称: Journal of Hazardous Materials

ISSN: 0304-3894

年卷期: 2023 年 441 卷

页码:

收录情况: SCIE(2023版) ; ; EI(2023版)

摘要: Metal oxides exist in porous media in the form of composite metal oxides, which can significantly affect the transport and transformation of pollutants in the soil environment. In this study, binary metal oxide porous media were prepared to explore the effects of solution chemistry, and the presence of binary metal oxides on the transport of functional group modified polystyrene nanoplastics (PSNPs) in saturated porous media. The results show that the existence of binary metal oxides significantly affects the migration ability of PSNPs in saturated porous media. The increase of ionic strength and the presence of multivalent cations affect the transport capacity of PSNPs in porous media. The types of binary metal oxides affect the migration of PSNPs in saturated porous media. The surface roughness and electrostatic interaction are important factors affecting the retention of PSNPs on the surface of binary metal oxide saturated porous media. The surface morphology has a more far-reaching impact. In addition, DLVO theory cannot fully explain the interaction between PSNPs and saturated porous media in the presence of Al3+. This study's results help provide some theoretical support for the migration of microplastics in the soil environment. © 2022 Elsevier B.V.

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