Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection

Abstract FeS2/TiO2 nanotube array composite films with clean, high efficiency, low cost and low consumption were prepared by electrochemical anodization and hydrothermal methods. The modification of FeS2 nanoparticles on the surface of TiO2 nanotube array film not only broadens the light absorption...

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Autores principales:	Ning Wang, Jing Wang, Mengnan Liu, Chengyue Ge, Baorong Hou, Nazhen Liu, Yanli Ning, Yiteng Hu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ab649cc76d144e8497a95345cae1f608
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spelling	oai:doaj.org-article:ab649cc76d144e8497a95345cae1f6082021-12-02T14:37:15ZPreparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection10.1038/s41598-021-87132-y2045-2322https://doaj.org/article/ab649cc76d144e8497a95345cae1f6082021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87132-yhttps://doaj.org/toc/2045-2322Abstract FeS2/TiO2 nanotube array composite films with clean, high efficiency, low cost and low consumption were prepared by electrochemical anodization and hydrothermal methods. The modification of FeS2 nanoparticles on the surface of TiO2 nanotube array film not only broadens the light absorption range of TiO2, but also improves the utilization ratio of visible light and the separation rate of photogenerated electron–hole pairs, which greatly improves the photoelectrochemical cathodic protection performance of TiO2 for 304 stainless steel (304SS). Under visible light irradiation, the open circuit potential of 304SS coupled with the FeS2/TiO2 nanocomposite films decreased from − 170 to − 700 mV, and the electrode potential can still maintained at − 400 mV after the light was turned off. Compared with pure TiO2 nanotube array film, FeS2/TiO2 nanocomposite film has better photoelectrochemical cathodic protection effect on 304SS in 3.5 wt% NaCl corrosion medium.Ning WangJing WangMengnan LiuChengyue GeBaorong HouNazhen LiuYanli NingYiteng HuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ning Wang Jing Wang Mengnan Liu Chengyue Ge Baorong Hou Nazhen Liu Yanli Ning Yiteng Hu Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection
description	Abstract FeS2/TiO2 nanotube array composite films with clean, high efficiency, low cost and low consumption were prepared by electrochemical anodization and hydrothermal methods. The modification of FeS2 nanoparticles on the surface of TiO2 nanotube array film not only broadens the light absorption range of TiO2, but also improves the utilization ratio of visible light and the separation rate of photogenerated electron–hole pairs, which greatly improves the photoelectrochemical cathodic protection performance of TiO2 for 304 stainless steel (304SS). Under visible light irradiation, the open circuit potential of 304SS coupled with the FeS2/TiO2 nanocomposite films decreased from − 170 to − 700 mV, and the electrode potential can still maintained at − 400 mV after the light was turned off. Compared with pure TiO2 nanotube array film, FeS2/TiO2 nanocomposite film has better photoelectrochemical cathodic protection effect on 304SS in 3.5 wt% NaCl corrosion medium.
format	article
author	Ning Wang Jing Wang Mengnan Liu Chengyue Ge Baorong Hou Nazhen Liu Yanli Ning Yiteng Hu
author_facet	Ning Wang Jing Wang Mengnan Liu Chengyue Ge Baorong Hou Nazhen Liu Yanli Ning Yiteng Hu
author_sort	Ning Wang
title	Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection
title_short	Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection
title_full	Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection
title_fullStr	Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection
title_full_unstemmed	Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection
title_sort	preparation of fes2/tio2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ab649cc76d144e8497a95345cae1f608
work_keys_str_mv	AT ningwang preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection AT jingwang preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection AT mengnanliu preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection AT chengyuege preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection AT baoronghou preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection AT nazhenliu preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection AT yanlining preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection AT yitenghu preparationoffes2tio2nanocompositefilmsandstudyontheperformanceofphotoelectrochemistrycathodicprotection
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Preparation of FeS2/TiO2 nanocomposite films and study on the performance of photoelectrochemistry cathodic protection

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