IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Fluoro-Substituted Covalent Organic Framework Particles Anchored on TiO2 Nanotube Arrays for Photoelectrochemical Determination of Dopamine
Wang, Chunli1,2,3; Liu, Nazhen2,3; Liu, Xiangju2,3; Tian, Yong4; Zhai, Xiaofan2,3; Chen, Xuwei1; Hou, Baorong2,3
2021-09-24
Source PublicationACS APPLIED NANO MATERIALS
ISSN2574-0970
Volume4Issue:9Pages:8801-8812
Corresponding AuthorLiu, Nazhen(liunazhen@qdio.ac.cn) ; Chen, Xuwei(chenxuwei@mail.neu.edu.cn)
AbstractIn 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.
Keywordfluoro-substituted covalent organic frameworks TiO2 nanotube arrays photoelectrochemical sensor dopamine
DOI10.1021/acsanm.1c01466
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51901222] ; National Natural Science Foundation of China[41827805] ; Pioneer Hundred Talents Program of the Chinese Academy of Sciences
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000702079900017
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/176581
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorLiu, Nazhen; Chen, Xuwei
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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