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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
•Novel CQDs decorated MnIn2S4/Cu2O/Ag2O heterojunction were rationally constructed.•Benign designing of dual Z-scheme upgraded separation of photo-generated charges.••O2−, e− and h+ as effective ROS accredited to MO removal and E. coli disinfection.•A recyclable and low energy utilization process wa...
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Published in: | Materials letters 2022-04, Vol.313, p.131716, Article 131716 |
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Main Authors: | , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | •Novel CQDs decorated MnIn2S4/Cu2O/Ag2O heterojunction were rationally constructed.•Benign designing of dual Z-scheme upgraded separation of photo-generated charges.••O2−, e− and h+ as effective ROS accredited to MO removal and E. coli disinfection.•A recyclable and low energy utilization process was accomplished.
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. |
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ISSN: | 0167-577X 1873-4979 |
DOI: | 10.1016/j.matlet.2022.131716 |