Adsorbent-Assisted In Situ Electrocatalysis: Highly Sensitive and Stable Electrochemical Sensor Based on AuNF/COF-SH/CNT Nanocomposites for the Determination of Trace Cu(II)

doi:10.1021/acssuschemeng.2c05690

	Adsorbent-Assisted In Situ Electrocatalysis: Highly Sensitive and Stable Electrochemical Sensor Based on AuNF/COF-SH/CNT Nanocomposites for the Determination of Trace Cu(II)
	Pan, Dawei1 ; Zhu, Rilong 2; Pan, Fei 1,2,3; Tong, Chunyi 2; Wang, Ning1 ; Wang, Yeyao 4
发表期刊	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN	2168-0485
	2022-11-18
页码	10
关键词	covalent organic frameworks adsorption-catalysis carbon nanotubes copper electrochemical sensor seawater
DOI	10.1021/acssuschemeng.2c05690
通讯作者	Pan, Dawei(dwpan@yic.ac.cn) ; Zhu, Rilong(zrlden@hnu.edu.cn)
英文摘要	The weak conductivity of covalent organic frameworks (COFs) limits their wide application in electrochemical sensors. Here, a novel electrochemical sensor (AuNFs/COF-SH/ CNTs/GCE) was designed and constructed by a one-step electrochemical deposition of Au nanoflowers (AuNFs) on a hybrid nanocomposite of sulfhydryl-functional covalent organic framework/carbon nanotubes (COF-SH/CNTs) for the determination of Cu(II) in seawater. AuNFs/COF-SH/CNTs/GCE was prepared in a three-step method including in situ synthesis, post synthesis, and one-step electrochemical deposition. The adsorption and catalytic performances of the modified electrode were improved based on the mechanism of ???adsorption-catalysis stripping determination???. By combining the excellent catalytic properties of the AuNFs with the good adsorption capacity of COF-SH toward Cu(II), as well as the good conductivity of CNTs, the AuNFs/COF-SH/CNTs/GCE exhibited excellent performance for the determination of Cu(II). Through optimization of the experimental conditions, a low detection limit of 0.47 nM and a wide linear range of 1.6 nM-4.7 ??M were obtained. Moreover, the sensor possessed good stability with a relative standard deviation of less than 5% after 20 repeated measurements. The results are consistent with certified values when used for the determination of certified reference materials. In summary, the AuNFs/COF-SH/CNTs/GCE, with high stability and sensitivity, has been successfully applied for the determination of Cu(II) in seawater samples with satisfactory results.
资助机构	National Natural Science Foundation of China ; Huxiang High-level Talent Agglomeration Project-Innovation Team ; Hunan Innovative Province Construction Chenzhou National Sustainable Development Agenda Innovation Demonstration Zone Special
收录类别	SCI
语种	英语
关键词[WOS]	COVALENT ORGANIC FRAMEWORKS ; SPECIATION ANALYSIS ; NANOSHEETS ; ELECTRODE ; COPPER ; CU2+
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Engineering
WOS记录号	WOS:000890182300001
引用统计	被引频次：7[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/133337/31916
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_海岸带环境工程技术研究与发展中心
通讯作者	Pan, Dawei; Zhu, Rilong
作者单位	1.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,Yantai Ins, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai 264003, Peoples R China 2.Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.China Natl Environm Monitoring Ctr, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Pan, Dawei,Zhu, Rilong,Pan, Fei,et al. Adsorbent-Assisted In Situ Electrocatalysis: Highly Sensitive and Stable Electrochemical Sensor Based on AuNF/COF-SH/CNT Nanocomposites for the Determination of Trace Cu(II)[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2022:10.
APA	Pan, Dawei,Zhu, Rilong,Pan, Fei,Tong, Chunyi,Wang, Ning,&Wang, Yeyao.(2022).Adsorbent-Assisted In Situ Electrocatalysis: Highly Sensitive and Stable Electrochemical Sensor Based on AuNF/COF-SH/CNT Nanocomposites for the Determination of Trace Cu(II).ACS SUSTAINABLE CHEMISTRY & ENGINEERING,10.
MLA	Pan, Dawei,et al."Adsorbent-Assisted In Situ Electrocatalysis: Highly Sensitive and Stable Electrochemical Sensor Based on AuNF/COF-SH/CNT Nanocomposites for the Determination of Trace Cu(II)".ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2022):10.