Synergistic photocatalytic dye mitigation and bacterial disinfection using carbon quantum dots decorated dual Z-scheme Manganese Indium Sulfide/Cuprous Oxide/Silver oxide heterojunction

Sheetal Sharma, Vishal Dutta, Pankaj Raizada, Vijay Kumar Thakur, Adesh K. Saini, Divya Mittal, Van Huy Nguyen, Tansir Ahamad, Chinh Chien Nguyen, Soo Young Kim, Quyet Van Le*, Pardeep Singh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

A novel CQDs decorated MnIn2S4/Cu2O/Ag2O dual Z-scheme tandem hybrid is fabricated via hydrothermal method for MO removal and E. coli disinfection under visible light illumination. CQDs shuttle electrons in CQDs-MnIn2S4/Cu2O/Ag2O interface via dual Z-scheme electron transferal route which lead to upgrade in charge separation and visible light absorption. The Z-scheme hybrid displayed best catalytic inactivation performance of E. coli and degradation of MO which totally disinfect bacteria within 3 h and displayed 98.6% of MO degradation in 70 min in visible light radiation. The unique dual Z-scheme junction supports enhanced redox capabilities, prolong lifespan of photo-excitons, stability, spatial separation and enhanced visible light absorption.

Original languageEnglish
Article number131716
JournalMaterials Letters
Volume313
Early online date12 Jan 2022
DOIs
Publication statusPrint publication - 15 Apr 2022

Keywords

  • Dual Z-scheme
  • E. coli disinfection
  • MO removal
  • Tandem charge transfer

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