Anticorrosion coated stainless steel as durable support for c-n-tio2 photo catalyst layer

Emile Salomon Massima Mouele, Mihaela Dinu, Anca Constantina Parau, Alina Vladescu, Myo Tay Zar Myint, Htet Htet Kyaw, Jamal Al-Sabahi, Mohammed Al-Abri, Sergey Dobretsov, Mohammed A. Al Belushi, Rahma Al-Mamari, Mariana Braic, Leslie Felicia Petrik

Research output: Contribution to journalArticlepeer-review

Abstract

The development of durable photocatalytic supports resistant in harsh environment has become challenging in advanced oxidation processes (AOPs) focusing on water and wastewater remediation. In this study, stainless steel (SS), SS/Ti (N,O) and SS/Cr-N/Cr (N,O) anticorrosion layers on SS meshes were dip-coated with sol gel synthesised C-N-TiO2 photo catalysts pyrolysed at 350C for 105 min, using a heating rate of 50C/min under N2 gas. The supported C-N-TiO2 films were characterised by scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and Raman spectroscopy. The results showed that C-N-TiO2 was successfully deposited on anticorrosion coated SS supports and had different morphologies. The amorphous C and TiO2 were predominant in C-N-TiO2 over anatase and rutile phases on the surface of SS and anticorrosion supports. The C-N-TiO2 coated films showed enhanced photocatalytic activity for the decolouration of O.II dye under both solar and UV radiations. The fabricated C-N-TiO2 films showed significant antibacterial activities in the dark as well as in visible light. Herein, we demonstrate that SS/Ti(N,O) and SS/Cr-N/Cr(N,O) anticorrosion coatings are adequate photocatalytic and corrosion resistant supports. The C-N-TiO2 photo catalytic coatings can be used for water and wastewater decontamination of pollutants and microbes.

Original languageEnglish
Article number4426
Pages (from-to)1-27
Number of pages27
JournalMaterials
Volume13
Issue number19
DOIs
Publication statusPublished - 1 Oct 2020

Keywords

  • Advanced oxidation processes
  • Anticorrosion
  • Antimicrobial activity
  • Coating
  • Dye decolouration
  • Photo catalysis
  • Pollutants
  • Wastewater

ASJC Scopus subject areas

  • Materials Science(all)

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