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

	Unveiling the fast adsorption and desorption of heavy metals on/off nanoplastics by real-time in-situ potentiometric sensing
	Qi, Longbin 1,3; Qin, Wei1,2,4
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
	2024-09-15
卷号	943 页码:9
关键词	Nanoplastics Heavy metal contaminants Adsorption and desorption kinetics Potentiometric sensing In-situ monitoring
DOI	10.1016/j.scitotenv.2024.173789
通讯作者	Qin, Wei([email protected])
英文摘要	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.
资助机构	National Natural Science Foundation of China ; National Postdoctoral Program for Innovative Talents of China ; Postdoctoral Science Foundation of China ; Shandong Provincial Natural Science Foundation ; Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences ; Taishan Scholar Project of Shandong Province
收录类别	SCI
语种	英语
关键词[WOS]	ION-SELECTIVE ELECTRODES ; MEMBRANE ELECTRODES ; MICROPLASTICS ; SPECIATION ; TOXICITY ; SILVER ; ZN ; PB ; CD ; CU
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:001258110300001
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/35881
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
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
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.