应用化学2025，Vol.42Issue(8)：1070-1077,8.DOI:10.19894/j.issn.1000-0518.250073
原子力-红外光谱技术检测单个微纳塑料粒子
Application of Atomic Force Microscopy-Infrared for Single Micro-and Nanoplastics
摘要
Abstract
As emerging pollutants the recognition and identification of micro/nano plastic particles has received extensive attention.In this study,atomic force microscopy-infrared spectroscopy(AFM-IR)was employed to characterize and analyze individual polypropylene(PP)micro-and nanoplastic particles prepared by grinding.The results demonstrate that AFM-IR not only precisely characterizes the morphology and size distribution of individual PP particles but also accurately resolves their chemical composition through infrared spectroscopy.Furthermore,AFM-IR was utilized to analyze aged microplastics and nanoplastics collected from beach environments,successfully identifying the presence of PP and polydimethylsiloxane(PDMS)particles.Additionally,the observation of a C=O absorption peak at 1720 cm-1 in the infrared spectra indicates oxidation reactions in aged microplastics,revealing significant differences compared to the spectral features of unaged plastics.This study provides a novel approach for the high-precision detection of microplastics and nanoplastics and lays a technical foundation for assessing their environmental behavior and ecological risks.关键词
聚丙烯/微塑料/纳米塑料/原子力-红外光谱Key words
Polypropylene/Microplastic/Nanoplastic/Atomic force microscopy-infrared分类
化学化工引用本文复制引用
方慧瑶,林园,苏朝晖..原子力-红外光谱技术检测单个微纳塑料粒子[J].应用化学,2025,42(8):1070-1077,8.基金项目
国家自然科学基金(No.52073277)资助 Supported by the National Natural Science Foundation of China(No.52073277) （No.52073277）
