Unveiling the fast adsorption and desorption of heavy metals on/off nanoplastics by real-time in-situ potentiometric sensing

doi:10.1016/j.scitotenv.2024.173789

IOCAS-IR

	Unveiling the fast adsorption and desorption of heavy metals on/off nanoplastics by real-time in-situ potentiometric sensing
	Qi, Longbin 1,3; Qin, Wei 1,2,4
	2024-09-15
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	943 页码:9
通讯作者	Qin, Wei(wqin@yic.ac.cn)
摘要	Nanoplastics (<1 mu m) can serve as a transport vector of environmental pollutants (e.g., heavy metals) and change their toxicities and bioavailabilities. Up to date the behaviors of adsorption and desorption heavy metals on/off nanoplastics are largely unknown. Herein, polymeric membrane potentiometric ion sensors are proposed for in-situ assessment of the real-time kinetics of heavy metal adsorption and desorption on/off nanoplastics. Results show that nanoplastics can adsorb and release heavy metals in a fast manner, indicating their superior ability in transferring heavy metals. The adsorption behaviors are closely related to the characteristics of nanoplastics and background electrolytes. Particle aggregation and increases in salinity and acidity suppress the adsorption of heavy metals on nanoplastics. The desorption efficiencies of different heavy metals are Pb2+ (31 %) < Cu2+ (40 %) < Cd2+ (97 %). Our proposed method is applicable for the detection of the plastic pollutants with size <100 nm and of the samples with high salinities (e.g., seawater). This work would provide new insights into the assessment of environmental risks posed by nanoplastics and heavy metals.
关键词	Nanoplastics Heavy metal contaminants Adsorption and desorption kinetics Potentiometric sensing In-situ monitoring
DOI	10.1016/j.scitotenv.2024.173789
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[22206203] ; National Natural Science Foundation of China[U2006208] ; National Postdoctoral Program for Innovative Talents of China[BX20220303] ; Postdoctoral Science Foundation of China[2021M692774] ; Shandong Provincial Natural Science Foundation[ZR2022QD117] ; Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences[COMS2020J06] ; Taishan Scholar Project of Shandong Province[tspd20181215]
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001258110300001
出版者	ELSEVIER
WOS关键词	ION-SELECTIVE ELECTRODES ; MEMBRANE ELECTRODES ; MICROPLASTICS ; SPECIATION ; TOXICITY ; SILVER ; ZN ; PB ; CD ; CU
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186393
专题	中国科学院海洋研究所
通讯作者	Qin, Wei
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Shandong, Peoples R China 2.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Qi, Longbin,Qin, Wei. Unveiling the fast adsorption and desorption of heavy metals on/off nanoplastics by real-time in-situ potentiometric sensing[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,943:9.
APA	Qi, Longbin,&Qin, Wei.(2024).Unveiling the fast adsorption and desorption of heavy metals on/off nanoplastics by real-time in-situ potentiometric sensing.SCIENCE OF THE TOTAL ENVIRONMENT,943,9.
MLA	Qi, Longbin,et al."Unveiling the fast adsorption and desorption of heavy metals on/off nanoplastics by real-time in-situ potentiometric sensing".SCIENCE OF THE TOTAL ENVIRONMENT 943(2024):9.