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Synthesis of multilayered pH-responsive nanocapsules by using tolyltriazole as corrosion inhibitor and ZrO2 nanoparticles as core

Fathabadi, H. E ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1016/j.nanoso.2021.100760
  3. Publisher: Elsevier B.V , 2021
  4. Abstract:
  5. Smart multilayered pH-sensitive nanocapsules were successfully fabricated using a Layer by Layer (LbL) process. The obtained products were characterized using FESEM, TEM, EDS and elemental mapping, zeta-potential, FTIR, TGA, SIMS and the Tafel polarization techniques. A 55% enhancement in ZrO2 particle size was detected in FESEM and TEM images with a corona view after the LbL process. EDS and elemental mapping analysis and measurements of zeta potential indicated the well-defined layered deposition. FTIR showed the electrostatic bonding between tolyltriazole (TTA) molecules and different overlapping layers. The thermal analysis and SIMS confirmed that 2.7% TTA loaded in nanocapsules. Tafel polarization results showed successful surface protection due to self-releasing of TTA from nanocapsules at high and low pH solutions. © 2021 Elsevier B.V
  6. Keywords:
  7. Layer by Layer (LbL) process ; Nanocapsules ; pH-responsive ; Tolyltriazole (TTA)
  8. Source: Nano-Structures and Nano-Objects ; Volume 26 , 2021 ; 2352507X (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S2352507X21000494#!