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

doi:10.1021/acsanm.1c01466

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	Fluoro-Substituted Covalent Organic Framework Particles Anchored on TiO2 Nanotube Arrays for Photoelectrochemical Determination of Dopamine
	Wang, Chunli 1,2,4; Liu, Nazhen 1,2; Liu, Xiangju 1,2; Tian, Yong 3; Zhai, Xiaofan 1,2; Chen, Xuwei 4; Hou, Baorong 1,2
刊名	ACS APPLIED NANO MATERIALS
	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
DOI	10.1021/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
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000702079900017
内容类型	期刊论文
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.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 3.Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao 266033, Peoples R China 4.Northeastern Univ, Coll Sci, Res Ctr Analyt Sci, Dept Chem, POB 332, Shenyang 110819, 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.