Novel Green Approach for Fabrication of Ag2CrO4/TiO2/Au/r-GO Hybrid Biofilm for Visible Light-Driven Photocatalytic Performance

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dc.contributor.authorBiswas, R
dc.contributor.authorMete, S
dc.contributor.authorMandal, M
dc.contributor.authorBanerjee, B
dc.contributor.authorSingh, H
dc.contributor.authorAhmed, I
dc.contributor.authorHaldar, K.K.
dc.date.accessioned2020-07-16T07:41:57Z
dc.date.accessioned2024-08-13T11:16:36Z
dc.date.available2020-07-16T07:41:57Z
dc.date.available2024-08-13T11:16:36Z
dc.date.issued2020
dc.description.abstractDevelopment of cutting edge materials using a benevolent ecologically cordial methodology is an ideal approach for heterogeneous visible light photocatalysis. A new biogenic photocatalyst was developed by coupling titanium dioxide (TiO2) decorated elongated rhombic shape silver chromate (Ag2CrO4) with gold (Au) and reduced graphene oxide (r-GO) for dye degradation applications under visible light. An ecologically positive methodology was utilized to develop the quaternary Ag2CrO4/TiO2/Au/r-GO nanostructures biofilm with gold and reduced graphene oxide (r-GO) via impregnation and in situ reduction technique in the presence of acacia gum. The structural properties and morphology of the Ag2CrO4/TiO2/Au/r-GO nanostructures were described by several spectroscopic and microscopic methods such as XRD, XPS, ATR-FTIR, Raman spectroscopy, FE-SEM, etc. Alteration with Au and r-GO decreased the band vitality and essentially improved the visible light ingestion of the quaternary Ag2CrO4/TiO2/Au/r-GO composite biofilm photocatalyst and slowed down the recombination process of the photogenerated electrons and holes. To demonstrate how such a unique heterostructured biofilm might produce more outstanding photocatalytic activity, we examined a comparison of the photocatalytic performances of Ag2CrO4/TiO2/Au/r-GO hybrid biofilm with different inner structures. The photocatalytic debasement of MB reached almost 97% within 52 min, and it has been found that the Ag2CrO4/TiO2/Au/r-GO biofilm increased the degradation rate of MB by a factor of 10.8, 6.5, and 3.1 in comparison with exposed Ag2CrO4, Ag2CrO4/TiO2, and Ag2CrO4/TiO2/Au biofilms, individually. Further, the high electron movement capacity of Ag2CrO4/TiO2/Au/r-GO biofilm was explored by photoelectrochemical investigation and TCSPC to comprehend the mechanistic insight of the superior activity of this composite nanostructures under visible light illumination. Hence, the present investigation describes a facile, eco-friendly, and biomimetic approach for the fabrication of Ag2CrO4/TiO2/Au/r-GO biofilm based photocatalyst using acacia gum. Copyright � 2020 American Chemical Society.en_US
dc.identifier.doi10.1021/acs.jpcc.9b10866
dc.identifier.issn19327447
dc.identifier.urihttp://10.2.3.109/handle/32116/2677
dc.identifier.urlhttps://pubs.acs.org/doi/abs/10.1021/acs.jpcc.9b10866
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.titleNovel Green Approach for Fabrication of Ag2CrO4/TiO2/Au/r-GO Hybrid Biofilm for Visible Light-Driven Photocatalytic Performanceen_US
dc.title.journalJournal of Physical Chemistry Cen_US
dc.typeArticleen_US
dc.type.accesstypeClosed Accessen_US

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