Neweffects of TiO2 nanotube/g-C3N4 hybrids on the corrosion protection performance of epoxy coatings

doi:10.1016/j.molliq.2020.114214

	Neweffects of TiO2 nanotube/g-C3N4 hybrids on the corrosion protection performance of epoxy coatings
	Pourhashem, Sepideh 1,2,3; Duan, Jizhou1,2,3 ; Guan, Fang1,2,3 ; Wang, Nan1,2,3,4 ; Gao, Ying 1,2,3,4; Hou, Baorong 1,2,3
	2020-11-01
发表期刊	JOURNAL OF MOLECULAR LIQUIDS
ISSN	0167-7322
卷号	317 页码:15
通讯作者	Duan, Jizhou([email protected])
摘要	In this research, the effects of visible-light-driven titanium dioxide (TiO2) nanotube/graphitic carbon nitride (g-C3N4) hybrids on the corrosion protection performance of epoxy coatings both in the dark and under visible-light irradiation are studied. For this, TiO2 nanotube/g-C3N4 hybrids and 3-(aminopropyl)triethoxysilane functionalized hybrids were synthesized and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, scanning electron microscopy coupled with energy dispersive X-ray spectroscopy mapping, N-2 adsorption/desorption technique, and UV-Vis spectroscopy. TiO2 nanotubes containing 30 wt% g-C3N4 (H30%) showed the highest photocatalytic performance due to the simultaneous effects of high surface area and band-gap structure; however, the photocatalytic activity decreased after the silane functionalization of H30%. Then, epoxy coatings containing H30% and silane functionalized H30% in different amounts (0.1, 0.3, and 0.5 wt%) were prepared, and their corrosion resistance was investigated by electrochemical impedance spectroscopy in NaCl solution. The results revealed that the epoxy coatings containing 0.3 wt% hybrids have higher corrosion resistance than that of the neat coating, and silane-functionalized nanofillers more effectively enhance the corrosion resistance. However, when these nanocomposite coatings are irradiated with visible light, their corrosion protection performance remarkably reduces owing to the degradation of organic matrix by the oxidizing radicals formed on the photocatalytic hybrid surface. (C) 2020 Elsevier B.V. All rights reserved.
关键词	TiO2 nanotube/g-C3N4 hybrids Epoxy coating Corrosion resistance Visible light
DOI	10.1016/j.molliq.2020.114214
收录类别	SCI
语种	英语
资助项目	CAS President's International Fellowship Initiative (PIFI)[2019PE0059]; National Natural Science Foundation of China (NSFC)[41806090]; National Natural Science Foundation of China (NSFC)[41827805]
WOS研究方向	Chemistry ; Physics
WOS类目	Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:000580655700038
出版者	ELSEVIER
引用统计	被引频次：53[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/337002/169064
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Duan, Jizhou
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Pourhashem, Sepideh,Duan, Jizhou,Guan, Fang,et al. Neweffects of TiO2 nanotube/g-C3N4 hybrids on the corrosion protection performance of epoxy coatings[J]. JOURNAL OF MOLECULAR LIQUIDS,2020,317:15.
APA	Pourhashem, Sepideh,Duan, Jizhou,Guan, Fang,Wang, Nan,Gao, Ying,&Hou, Baorong.(2020).Neweffects of TiO2 nanotube/g-C3N4 hybrids on the corrosion protection performance of epoxy coatings.JOURNAL OF MOLECULAR LIQUIDS,317,15.
MLA	Pourhashem, Sepideh,et al."Neweffects of TiO2 nanotube/g-C3N4 hybrids on the corrosion protection performance of epoxy coatings".JOURNAL OF MOLECULAR LIQUIDS 317(2020):15.

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