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Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism

A high-performance photocatalytic nanocomposite consisting of silver phosphate-based particles with GO and RGO was synthesized by co-precipitation and hydrothermal methods. Ag(3)PO(4) was prepared by a co-precipitation method. The as-prepared Ag(3)PO(4) nanocomposites were characterized by different...

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Autores principales: Nooriha Najafabadi, Maedeh, Ghanbari, Hajar, Naghizadeh, Rahim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033761/
https://www.ncbi.nlm.nih.gov/pubmed/35479252
http://dx.doi.org/10.1039/d1ra01239h
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author Nooriha Najafabadi, Maedeh
Ghanbari, Hajar
Naghizadeh, Rahim
author_facet Nooriha Najafabadi, Maedeh
Ghanbari, Hajar
Naghizadeh, Rahim
author_sort Nooriha Najafabadi, Maedeh
collection PubMed
description A high-performance photocatalytic nanocomposite consisting of silver phosphate-based particles with GO and RGO was synthesized by co-precipitation and hydrothermal methods. Ag(3)PO(4) was prepared by a co-precipitation method. The as-prepared Ag(3)PO(4) nanocomposites were characterized by different analyses. The results demonstrated that the Ag(3)PO(4) particles were well dispersed on the graphene-based surfaces. The photocatalytic performance of the GO/RGO/Ag(3)PO(4) nanocomposite was evaluated for the photodegradation of methylene blue (MB) under exposure to visible light (xenon lamp λ > 400 nm). The degradation rate was about 98% in 5 min. The enhancement in photocatalytic performance is attributed to the simultaneous presence of RGO and GO, which show significantly high absorption of organic molecules on the surface of GO/RGO, allowing the effective transfer and separation of photogenerated electrons. In addition, this modified structure can be in situ synthesized on dead coral structures that can be used in future real case-studies of the degradation of other organic pollutants. The ingredient of these composites, however, is about 93% Ag(3)PO(4).
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spelling pubmed-90337612022-04-26 Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism Nooriha Najafabadi, Maedeh Ghanbari, Hajar Naghizadeh, Rahim RSC Adv Chemistry A high-performance photocatalytic nanocomposite consisting of silver phosphate-based particles with GO and RGO was synthesized by co-precipitation and hydrothermal methods. Ag(3)PO(4) was prepared by a co-precipitation method. The as-prepared Ag(3)PO(4) nanocomposites were characterized by different analyses. The results demonstrated that the Ag(3)PO(4) particles were well dispersed on the graphene-based surfaces. The photocatalytic performance of the GO/RGO/Ag(3)PO(4) nanocomposite was evaluated for the photodegradation of methylene blue (MB) under exposure to visible light (xenon lamp λ > 400 nm). The degradation rate was about 98% in 5 min. The enhancement in photocatalytic performance is attributed to the simultaneous presence of RGO and GO, which show significantly high absorption of organic molecules on the surface of GO/RGO, allowing the effective transfer and separation of photogenerated electrons. In addition, this modified structure can be in situ synthesized on dead coral structures that can be used in future real case-studies of the degradation of other organic pollutants. The ingredient of these composites, however, is about 93% Ag(3)PO(4). The Royal Society of Chemistry 2021-06-02 /pmc/articles/PMC9033761/ /pubmed/35479252 http://dx.doi.org/10.1039/d1ra01239h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Nooriha Najafabadi, Maedeh
Ghanbari, Hajar
Naghizadeh, Rahim
Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism
title Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism
title_full Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism
title_fullStr Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism
title_full_unstemmed Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism
title_short Graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the Z-scheme mechanism
title_sort graphene/silver-based composites and coating on dead coral for degradation of organic pollution using the z-scheme mechanism
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033761/
https://www.ncbi.nlm.nih.gov/pubmed/35479252
http://dx.doi.org/10.1039/d1ra01239h
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