A sustainable emulsion for separation and Raman identification of microplastics and nanoplastics

doi:10.1016/j.cej.2023.143992

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	A sustainable emulsion for separation and Raman identification of microplastics and nanoplastics
	Li, Yinan 2; Fu, Jianxin 2; Peng, Lin 2; Sun, Xun 2; Wang, Guoqing 2,3; Wang, Yunqing 4; Chen, Lingxin 1,4,5
刊名	CHEMICAL ENGINEERING JOURNAL
	2023-08-01
卷号	469 页码:11
关键词	Microplastics removal Emulsion Dispersed phase Hydrophobic force Sustainability
ISSN号	1385-8947
DOI	10.1016/j.cej.2023.143992
通讯作者	Wang, Guoqing(gqwang@ouc.edu.cn) ; Chen, Lingxin(lxchen@yic.ac.cn)
英文摘要	The extensive occurrence of small plastic particles in the environment and our foods, and the resulting hazardous effects to nature and people have become an issue of increasing concern worldwide. The currently established approaches and tools for the elimination of the emerging contaminants, in particular micro-and nano-scale plastic particles, from environmental and food matrices have been often limited to the use of poorly sustain-able materials and complicated preparation/operation. Here we show a conceptually new strategy for the removal of microplastics and nanoplastics using an olive oil-based emulsion. By emulsifying naturally occurring olive oil, water and emulsifiers at an oil-to-water ratio of 5:12, a stable O/W emulsion can be produced by mechanical agitation, which can adsorb onto microplastics and nanoplastics via hydrophobic interactions. Upon demulsification, interestingly, the tiny plastic particles can be enriched at an efficiency up to similar to 87%, attributable to the affinity-driven encapsulation of the plastics by the merged oil phase. We further demonstrate the emulsion affords the removal of tiny plastic particles from seawater, tea leaves, soil and toothpaste supernatants at considerably low concentration levels in efficiencies of 75%, 80%, 83% and 82%, respectively, while preserving uncompromised performance. The identification of the extracted plastics has been achieved using Raman spectroscopy, which has implications in health risk assessment and clarification of the contamination route. Given the high removal efficiency, green feature and generality of the emulsion coupled with Raman finger-prints, sustainable materials for the depollution of microplastics and nanoplastics are within reach.
WOS关键词	OIL ; NANOEMULSION ; STABILIZATION ; EXTRACTION ; IMPACT
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:001023018400001
资助机构	Special Fund for the Qingdao Science and Technology Program of Public Wellbeing ; National Natural Science Foundation of China ; Taishan Scholar Project Special Funding
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/33390]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Wang, Guoqing; Chen, Lingxin
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Ocean Univ China, Coll Food Sci & Engn, Qingdao 266003, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Drugs & Bioprod, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol, Yantai 264003, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China
推荐引用方式 GB/T 7714	Li, Yinan,Fu, Jianxin,Peng, Lin,et al. A sustainable emulsion for separation and Raman identification of microplastics and nanoplastics[J]. CHEMICAL ENGINEERING JOURNAL,2023,469:11.
APA	Li, Yinan.,Fu, Jianxin.,Peng, Lin.,Sun, Xun.,Wang, Guoqing.,...&Chen, Lingxin.(2023).A sustainable emulsion for separation and Raman identification of microplastics and nanoplastics.CHEMICAL ENGINEERING JOURNAL,469,11.
MLA	Li, Yinan,et al."A sustainable emulsion for separation and Raman identification of microplastics and nanoplastics".CHEMICAL ENGINEERING JOURNAL 469(2023):11.