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

Authors
Sharma, S.Dutta, V.Raizada, P.Kumar, Thakur V.Saini, A.K.Mittal, D.Nguyen, V.-H.Ahamad, T.Chien, Nguyen C.Young, Kim S.Le, Q.V.Singh, P.
Issue Date
15-4월-2022
Publisher
Elsevier B.V.
Keywords
Dual Z-scheme; E. coli disinfection; MO removal; Tandem charge transfer
Citation
Materials Letters, v.313
Indexed
SCIE
SCOPUS
Journal Title
Materials Letters
Volume
313
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/136606
DOI
10.1016/j.matlet.2022.131716
ISSN
0167-577X
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. © 2022 Elsevier B.V.
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