IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Neweffects of TiO2 nanotube/g-C3N4 hybrids on the corrosion protection performance of epoxy coatings
Pourhashem, Sepideh1,2,3; Duan, Jizhou1,2,3; Guan, Fang1,2,3; Wang, Nan1,2,3,4; Gao, Ying1,2,3,4; Hou, Baorong1,2,3
2020-11-01
Source PublicationJOURNAL OF MOLECULAR LIQUIDS
ISSN0167-7322
Volume317Pages:15
Corresponding AuthorDuan, Jizhou(duanjz@qdio.ac.cn)
AbstractIn 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.
KeywordTiO2 nanotube/g-C3N4 hybrids Epoxy coating Corrosion resistance Visible light
DOI10.1016/j.molliq.2020.114214
Indexed BySCI
Language英语
Funding ProjectCAS President's International Fellowship Initiative (PIFI)[2019PE0059] ; National Natural Science Foundation of China (NSFC)[41806090] ; National Natural Science Foundation of China (NSFC)[41827805]
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS IDWOS:000580655700038
PublisherELSEVIER
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/169064
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorDuan, Jizhou
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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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