Preparation and characterization of layer-by-layer assembly of thiols/Ag nanoparticles/polydopamine on PET bottles for the enrichment of organic pollutants from water samples

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Preparation and characterization of layer-by-layer assembly of thiols/Ag nanoparticles/polydopamine on PET bottles for the enrichment of organic pollutants from water samples
	Niu, Hongyun ; Wang, Saihua ; Zeng, Tao ; Wang, Yixuan ; Zhang, Xiaole ; Meng, Zhaofu ; Cai, Yaqi
刊名	JOURNAL OF MATERIALS CHEMISTRY
	2012
卷号	22 期号:31 页码:15644－15653
ISSN号	0959-9428
中文摘要	In this study, we immobilize thiols/Ag nanoparticles/polydopamine (thiols/AgNPs/PDOPA) sorbents onto the inner walls of 100 mL of PET bottles via layer-by-layer assembly technique. The polydopamine film, resulting from selfpolymerizing of dopamine in alkaline solution, is responsible for the firm adhesion of sorbents and reduction of Ag+ to AgNPs. AgNPs increase the specific surface areas of the bottles and supply hydrophobic thiols ad-layers through Ag-S bonds. Organic analytes can be sorbed via hydrophobic interaction with thiols on AgNPs surface and/or pi-pi stack interaction with PDOPA film. The enrichment of organic contaminants using these bottles can be performed by manual vibration of bottles loading with water samples for 1 min and standing for a certain time. After discarding the aqueous solution, the targets are collected with acetonitrile. In this novel kind of solid-phase extraction (SPE) method, no special instruments and electricity power are required and enrichment of organic contaminants can proceed during transport or storage of water samples, which will save the analytical time. Water samples can be stored in the bottles safely at room temperature and photocatalytic degradation, biodegradation of organic analytes are avoided due to the brown color of the bottle and antibacterial activity of AgNPs. The cost for water sample storage and loss of analytes during sample transport and storage can be decreased. The new SPE method is successfully applied to extract target analytes including two alkylphenols, two phthalate esters and six polycyclic aromatic hydrocarbons from real water samples. The recoveries of targets are ranged from 70-120%, and the detection limits are in the range of 0.1-68 ng L-1.
WOS记录号	WOS:000306479600028
公开日期	2014-11-04
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/7783]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Niu, Hongyun,Wang, Saihua,Zeng, Tao,et al. Preparation and characterization of layer-by-layer assembly of thiols/Ag nanoparticles/polydopamine on PET bottles for the enrichment of organic pollutants from water samples[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(31):15644－15653.
APA	Niu, Hongyun.,Wang, Saihua.,Zeng, Tao.,Wang, Yixuan.,Zhang, Xiaole.,...&Cai, Yaqi.(2012).Preparation and characterization of layer-by-layer assembly of thiols/Ag nanoparticles/polydopamine on PET bottles for the enrichment of organic pollutants from water samples.JOURNAL OF MATERIALS CHEMISTRY,22(31),15644－15653.
MLA	Niu, Hongyun,et al."Preparation and characterization of layer-by-layer assembly of thiols/Ag nanoparticles/polydopamine on PET bottles for the enrichment of organic pollutants from water samples".JOURNAL OF MATERIALS CHEMISTRY 22.31(2012):15644－15653.