Highly efficient and recyclable quaternary Ag/Ag3PO4-BiOBr-C3N4 composite fabrication for efficient solar-driven photocatalytic performance for anionic pollutant in an aqueous medium and mechanism insights
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Highly efficient and recyclable quaternary Ag/Ag3PO4-BiOBr-C3N4 composite fabrication for efficient solar-driven photocatalytic performance for anionic pollutant in an aqueous medium and mechanism insights
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| Creator |
Gogoi, Himadri Priya
Bisoi, Gourab Barman, Pranjit Dehingia, Anurag Das, Subhajit Paul Chowdhury, Arpita |
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| Subject |
Electronics
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| Description |
A simple chemical precipitation route to synthesize the quaternary composite under mild conditions is reported. The quaternary composite photocatalyst Ag/Ag3PO4-BiOBr-C3N4-1 band gap was tuned to 0.56 eV by varying the amount of C3N4 for efficient photocatalytic performance. The as-prepared photocatalysts were characterized by XRD, XPS, TEM, EDAX, BET, EIS, and UV-Vis DRS spectroscopy. The degradation of reactive red (RR 120) under visible-light illumination were evaluated. The surface plasmon resonance (SPR) effect of Ag nanoparticles enhances the absorption and utilization of visible light. The Ag/Ag3PO4-BiOBr-C3N4 composite exhibited 92.6% degradation efficiency with the removal rate 0.042 min-1 which is 5.2, 2.7 and 2.5 times greater compared to pristine Ag/Ag3PO4, BiOBr and C3N4 particles. The active species holes (h+), superoxide (center dot O2-) and hydroxyl (center dot OH) radicals were responsible for the degradation process. The 4 times of cycle experiments proved the relatively high stability of the synthesized photocatalyst. The quaternary Ag/Ag3PO4-BiOBr-C3N4 heterojunction can endorse enhanced redox capability. The faster interfacial transport was validated, for quaternary photocatalysts using the EIS Nyquist plot. The work has driven a significant guidance in designing photocatalysts with surface plasmon effect.
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| Publisher |
Elsevier
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| Date |
2023-04
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/5575/1/arpita.pdf
Gogoi, Himadri Priya and Bisoi, Gourab and Barman, Pranjit and Dehingia, Anurag and Das, Subhajit and Paul Chowdhury, Arpita (2023) Highly efficient and recyclable quaternary Ag/Ag3PO4-BiOBr-C3N4 composite fabrication for efficient solar-driven photocatalytic performance for anionic pollutant in an aqueous medium and mechanism insights. Optical Materials , 138. Art No-113712. ISSN 0925-3467 |
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| Relation |
http://cgcri.csircentral.net/5575/
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