• 文献标题:   Sodium lignosulfonate-loaded ZnAl-layered double hydroxide decorated graphene oxide nanolayers; toward fabrication of sustainable nanocomposite for smart corrosion prevention
  • 文献类型:   Article
  • 作  者:   HADDADI SA, RAMEZANZADEH M, TEHRANI MEHN, RAMEZANZADEH B
  • 作者关键词:   graphene oxide, layered double hydroxide, sodium lignosulfonate, corrosion mitigation, epoxy coating
  • 出版物名称:   JOURNAL OF CLEANER PRODUCTION
  • ISSN:   0959-6526 EI 1879-1786
  • 通讯作者地址:  
  • 被引频次:   2
  • DOI:   10.1016/j.jclepro.2022.133980 EA SEP 2022
  • 出版年:   2022

▎ 摘  要

In this study, the NO3- intercalated ZnAl-based layered double hydroxide (LDH) nanostructures decorated graphene oxide (GO) nanosheets were synthesized, loaded with sodium lignosulfonate (SLS), and finally modified with aminopropyltriethoxysilane (APS) to reach a high-performance corrosion inhibitor nanocarriers. The morphology and chemistry of the LDH-rGO nanostructures were evaluated by the FE-SEM, EDX, FT-IR, XPS, XRD, Raman, and TGA techniques. Characterization results of SLS@LDH-rGO nanostructures proved the uniform decoration of GO nanosheets with LDH nanolayers and the loading of the SLS inhibitor. The active/barrier corrosion mitigation ability (CMA) of the synthesized nanostructures was studied by EIS and potentiodynamic polarization (PP) tests in both solution (NaCl) and coating (epoxy) phases. Results showed the increment of the total resistance and decrement of the current density of MSSs immersed in the SLS@LDH-rGO extract by 358 and 79%, respectively, compared to the blank solution after 48 h. EIS results proved the bi-functional active-inhibitive/barrier CMA for the SLS@APS-LDH-rGO filled epoxy coatings. The total impedance of the intact SLS@APS-LDH-rGO filled epoxy coating was enhanced by about 9700% after 8 weeks compared to that of the blank coating.