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Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures

This work comprehensively studies both the photocatalytic degradation and the adsorption process of Congo red dye on the surface of a mixed-phase copper oxide–graphene heterostructure nanocomposite. Laser-induced pristine graphene and graphene doped with different CuO concentrations were used to stu...

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Autores principales: Rashad, Mohamed, Helali, Saloua, Shaalan, Nagih M., Albalawi, Aishah E., Alatawi, Naifa S., Al-Faqiri, Bassam, Al-Belwi, Mohammed M., Alsharari, Abdulrhman M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10222110/
https://www.ncbi.nlm.nih.gov/pubmed/37241347
http://dx.doi.org/10.3390/ma16103721
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author Rashad, Mohamed
Helali, Saloua
Shaalan, Nagih M.
Albalawi, Aishah E.
Alatawi, Naifa S.
Al-Faqiri, Bassam
Al-Belwi, Mohammed M.
Alsharari, Abdulrhman M.
author_facet Rashad, Mohamed
Helali, Saloua
Shaalan, Nagih M.
Albalawi, Aishah E.
Alatawi, Naifa S.
Al-Faqiri, Bassam
Al-Belwi, Mohammed M.
Alsharari, Abdulrhman M.
author_sort Rashad, Mohamed
collection PubMed
description This work comprehensively studies both the photocatalytic degradation and the adsorption process of Congo red dye on the surface of a mixed-phase copper oxide–graphene heterostructure nanocomposite. Laser-induced pristine graphene and graphene doped with different CuO concentrations were used to study these effects. Raman spectra showed a shift in the D and G bands of the graphene due to incorporating copper phases into the laser-induced graphene. The XRD confirmed that the laser beam was able to reduce the CuO phase to Cu(2)O and Cu phases, which were embedded into the graphene. The results elucidate incorporating Cu(2)O molecules and atoms into the graphene lattice. The production of disordered graphene and the mixed phases of oxides and graphene were validated by the Raman spectra. It is noted from the spectra that the D site changed significantly after the addition of doping, which indicates the incorporation of Cu(2)O in the graphene. The impact of the graphene content was examined with 0.5, 1.0, and 2.0 mL of CuO. The findings of the photocatalysis and adsorption studies showed an improvement in the heterojunction of copper oxide and graphene, but a significant improvement was noticed with the addition of graphene with CuO. The outcomes demonstrated the compound’s potential for photocatalytic use in the degradation of Congo red.
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spelling pubmed-102221102023-05-28 Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures Rashad, Mohamed Helali, Saloua Shaalan, Nagih M. Albalawi, Aishah E. Alatawi, Naifa S. Al-Faqiri, Bassam Al-Belwi, Mohammed M. Alsharari, Abdulrhman M. Materials (Basel) Article This work comprehensively studies both the photocatalytic degradation and the adsorption process of Congo red dye on the surface of a mixed-phase copper oxide–graphene heterostructure nanocomposite. Laser-induced pristine graphene and graphene doped with different CuO concentrations were used to study these effects. Raman spectra showed a shift in the D and G bands of the graphene due to incorporating copper phases into the laser-induced graphene. The XRD confirmed that the laser beam was able to reduce the CuO phase to Cu(2)O and Cu phases, which were embedded into the graphene. The results elucidate incorporating Cu(2)O molecules and atoms into the graphene lattice. The production of disordered graphene and the mixed phases of oxides and graphene were validated by the Raman spectra. It is noted from the spectra that the D site changed significantly after the addition of doping, which indicates the incorporation of Cu(2)O in the graphene. The impact of the graphene content was examined with 0.5, 1.0, and 2.0 mL of CuO. The findings of the photocatalysis and adsorption studies showed an improvement in the heterojunction of copper oxide and graphene, but a significant improvement was noticed with the addition of graphene with CuO. The outcomes demonstrated the compound’s potential for photocatalytic use in the degradation of Congo red. MDPI 2023-05-14 /pmc/articles/PMC10222110/ /pubmed/37241347 http://dx.doi.org/10.3390/ma16103721 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rashad, Mohamed
Helali, Saloua
Shaalan, Nagih M.
Albalawi, Aishah E.
Alatawi, Naifa S.
Al-Faqiri, Bassam
Al-Belwi, Mohammed M.
Alsharari, Abdulrhman M.
Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures
title Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures
title_full Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures
title_fullStr Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures
title_full_unstemmed Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures
title_short Dual Studies of Photo Degradation and Adsorptions of Congo Red in Wastewater on Graphene–Copper Oxide Heterostructures
title_sort dual studies of photo degradation and adsorptions of congo red in wastewater on graphene–copper oxide heterostructures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10222110/
https://www.ncbi.nlm.nih.gov/pubmed/37241347
http://dx.doi.org/10.3390/ma16103721
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