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)
文献类型：期刊论文
| 作者 | Pan, Dawei4 ; Zhu, Rilong3; Pan, Fei2,3,4; Tong, Chunyi3; Wang, Ning4; Wang, Yeyao1
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| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
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| 出版日期 | 2022-11-18 |
| 页码 | 10 |
| 关键词 | covalent organic frameworks adsorption-catalysis carbon nanotubes copper electrochemical sensor seawater |
| ISSN号 | 2168-0485 |
| 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. |
| WOS关键词 | COVALENT ORGANIC FRAMEWORKS ; SPECIATION ANALYSIS ; NANOSHEETS ; ELECTRODE ; COPPER ; CU2+ |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000890182300001 |
| 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 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/31915]  |
| 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 烟台海岸带研究所_山东省海岸带环境工程技术研究中心 |
| 通讯作者 | Pan, Dawei; Zhu, Rilong |
| 作者单位 | 1.China Natl Environm Monitoring Ctr, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Peoples R China 4.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 |
| 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. |
入库方式： OAI收割
来源：烟台海岸带研究所
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