• 文献标题:   Graphene oxide nano-sheets loading with praseodymium cations: Adsorption-desorption study, quantum mechanics calculations and dual active-barrier effect for smart coatings fabrication
  • 文献类型:   Article
  • 作  者:   SAMIEE R, RAMEZANZADEH B, MAHDAVIAN M, ALIBAKHSHI E, BAHLAKEH G
  • 作者关键词:   graphene oxide, ecofriendly inhibitor, adsorption, desorption, smart coating
  • 出版物名称:   JOURNAL OF INDUSTRIAL ENGINEERING CHEMISTRY
  • ISSN:   1226-086X EI 1876-794X
  • 通讯作者地址:   Inst Color Sci Technol
  • 被引频次:   12
  • DOI:   10.1016/j.jiec.2019.06.024
  • 出版年:   2019

▎ 摘  要

In the current paper, the graphene oxide (GO) nano-sheets were benefited as a promising nano-carrier for Pr3+ cations for corrosion inhibition. The optimal experimental condition for Pr3+ cations loading was obtained. The thermodynamic and kinetic of adsorption process were studied in detail. According to the results of ICP analysis, the highest adsorption capacity of GO was found in the initial pH of 7, 0.00319 g of adsorbent dosage, 600 ppm of initial Pr3+ concentration, 30 min contact time and at the temperature of 35 C. The loading and desorption efficiency of Pr3+ cations were characterized by series of techniques such as UV-vis, XPS, and HR-TEM. Adsorption of Pr3+ cations onto GO was simulated by quantum mechanics calculations. Electrochemical analysis showed dual active-barrier protective functioning of Pr3+ loaded GO nano-sheets in the silane matrix. The formation of a protective film was confirmed by the SEM images. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.