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Fluoro-Substituted Covalent Organic Framework Particles Anchored on TiO2 Nanotube Arrays for Photoelectrochemical Determination of Dopamine

文献类型：期刊论文

作者Wang, Chunli1,2,3; Liu, Nazhen2,3; Liu, Xiangju2,3; Tian, Yong4; Zhai, Xiaofan2,3; Chen, Xuwei1; Hou, Baorong2,3
刊名ACS APPLIED NANO MATERIALS
出版日期2021-09-24
卷号4期号:9页码:8801-8812
关键词fluoro-substituted covalent organic frameworks TiO2 nanotube arrays photoelectrochemical sensor dopamine
ISSN号2574-0970
DOI10.1021/acsanm.1c01466
通讯作者Liu, Nazhen(liunazhen@qdio.ac.cn) ; Chen, Xuwei(chenxuwei@mail.neu.edu.cn)
英文摘要In this work, the photoelectrochemical (PEC) properties of TiO2 nanotube arrays (NTAs) were enhanced by forming heterostructures with non-substituted covalent organic frameworks (H-COFs) and fluoro-substituted covalent organic frameworks (F-COFs) through a facile in situ hydrothermal synthesis method. The composites H-COF/TiO2 NTA and F-COF/TiO2 NTA were fully characterized using scanning electron microscopy, energy-dispersive spectrometry, transmission electron microscopy, X-ray diffraction, attenuated total reflection-Fourier transform infrared, C-13 CP/MAS NMR, and X-ray photoelectron spectroscopy. It was observed via UV-vis diffuse reflection spectroscopy that both H-COF/TiO2 NTA and F-COF/TiO2 NTA exhibited enhanced visible light absorption compared to bare TiO2. The modification of TiO2 with fluoro-substituted COF was found to be the most effective in enhancing the photoelectric response of TiO2 by producing photoelectrons with the longest lifetime based on the calculation of transient time constant (tau). The potential application of F-COF/TiO2 NTA as a PEC sensor for dopamine (DA) detection was investigated, and the resultant sensor exhibited an extended linear range for DA quantification (0.1-300 mu M) with a detection limit of 0.032 mu M (S/N = 3). The formation of a type II heterojunction was proposed to be responsible for the "signal on" mode for DA quantification using F-COF/TiO2 NTA.
资助项目National Natural Science Foundation of China[51901222] ; National Natural Science Foundation of China[41827805] ; Pioneer Hundred Talents Program of the Chinese Academy of Sciences
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000702079900017
出版者AMER CHEMICAL SOC
源URL[http://ir.qdio.ac.cn/handle/337002/176580]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Liu, Nazhen; Chen, Xuwei
作者单位1.Northeastern Univ, Coll Sci, Res Ctr Analyt Sci, Dept Chem, POB 332, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
4.Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao 266033, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Chunli,Liu, Nazhen,Liu, Xiangju,et al. Fluoro-Substituted Covalent Organic Framework Particles Anchored on TiO2 Nanotube Arrays for Photoelectrochemical Determination of Dopamine[J]. ACS APPLIED NANO MATERIALS,2021,4(9):8801-8812.
APA Wang, Chunli.,Liu, Nazhen.,Liu, Xiangju.,Tian, Yong.,Zhai, Xiaofan.,...&Hou, Baorong.(2021).Fluoro-Substituted Covalent Organic Framework Particles Anchored on TiO2 Nanotube Arrays for Photoelectrochemical Determination of Dopamine.ACS APPLIED NANO MATERIALS,4(9),8801-8812.
MLA Wang, Chunli,et al."Fluoro-Substituted Covalent Organic Framework Particles Anchored on TiO2 Nanotube Arrays for Photoelectrochemical Determination of Dopamine".ACS APPLIED NANO MATERIALS 4.9(2021):8801-8812.

入库方式： OAI收割

来源：海洋研究所

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