Manganese indium sulfide/indium oxide with S-scheme heterojunction for enhanced dual performance of metal in marine environment

Zheng Li, Zuquan Jin*, Haosen Jiang, Jing Cai, Yubin Cao*, Xiaoying Zhang*, Baorong Hou

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

‘Chinese peony’-structured MnIn2S4/In2O3 nanocomposites with S-scheme heterojunction were prepared, and their dual performance of anticorrosion for steels and wastewater purification was explored. The mechanism for the enhanced photoelectrochemical cathodic protection (PECCP) is attributed to the introduction of S-scheme MnIn2S4/In2O3 heterojunction, which was systematically certificated through density functional theory (DFT) and experiments. Furthermore, MnIn2S4/In2O3 PECCP coating was synthesized to compensate for the insufficient dark protection capability of PECCP and defined through inductively coupled plasma (ICP). The protection efficiency of MnIn2S4/In2O3PECCP coating was 75.33% and 96.22% for 304 stainless steel (304SS) and hot-rolled ribbed bar 400 (HRB400) in 3.5 wt% NaCl for 54 days. In addition, the improved mechanism for anticorrosion of the PECCP coating was investigated by the wire beam electrode (WBE).
Original languageEnglish
Article number144785
JournalJournal of Cleaner Production
Volume490
Number of pages15
ISSN0959-6526
DOIs
Publication statusPublished - 2025

Keywords

  • Degradation of RhB
  • Density functional theory
  • HRB400
  • Photochemical cathodic protection
  • S-scheme
  • coating

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