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

doi:10.1021/acsanm.1c01466

	Fluoro-Substituted Covalent Organic Framework Particles Anchored on TiO2 Nanotube Arrays for Photoelectrochemical Determination of Dopamine
	Wang, Chunli 1,2,3; Liu, Nazhen 2,3; Liu, Xiangju 2,3; Tian, Yong 4; Zhai, Xiaofan 2,3; Chen, Xuwei 1; Hou, Baorong 2,3
	2021-09-24
发表期刊	ACS APPLIED NANO MATERIALS
ISSN	2574-0970
卷号	4 期号:9 页码:8801-8812
通讯作者	Liu, Nazhen(liunazhen@qdio.ac.cn) ; Chen, Xuwei(chenxuwei@mail.neu.edu.cn)
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.
关键词	fluoro-substituted covalent organic frameworks TiO2 nanotube arrays photoelectrochemical sensor dopamine
DOI	10.1021/acsanm.1c01466
收录类别	SCI
语种	英语
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
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000702079900017
出版者	AMER CHEMICAL SOC
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/176581
专题	海洋环境腐蚀与生物污损重点实验室
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
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
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.

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