Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline

The influence of the synthesis approach (thermal polyol and deposition–precipitation) regarding the dispersion of Ag/AgBr nanoparticles dispersed on activated carbon prepared from chemical impregnated pinecone (TP-AABR-ACK, and DP-AABR-ACK) was studied, to increase their photocatalytic efficiency on...

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Autores principales:	Saheed O. Sanni, Hendrik G. Brink, Elvera L. Viljoen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	silver/silver bromide activated carbon controlled microstructures tetracycline degradation reactive oxygen species Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/2f5474c2a78844ea80b58b13981edebe
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spelling	oai:doaj.org-article:2f5474c2a78844ea80b58b13981edebe2021-11-25T17:06:45ZInfluence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline10.3390/catal111113962073-4344https://doaj.org/article/2f5474c2a78844ea80b58b13981edebe2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1396https://doaj.org/toc/2073-4344The influence of the synthesis approach (thermal polyol and deposition–precipitation) regarding the dispersion of Ag/AgBr nanoparticles dispersed on activated carbon prepared from chemical impregnated pinecone (TP-AABR-ACK, and DP-AABR-ACK) was studied, to increase their photocatalytic efficiency on the degradation of tetracycline (TC). The physicochemical characterization evidenced the significance of the ACK catalyst promoter in enhancing controlled microstructures (morphologies and particle size distributions), synergistic interface interaction between AABR NPs and the carbonaceous support, and efficient photogenerated charge carriers separation within TP-AABR-ACK, and DP-AABR-ACK composites. The results revealed 92% removal of TC within 180 min under the LED visible light irradiation, which was achieved using TP-AABR-ACK when compared to DP-AABR-ACK composite and other catalysts in this study. Such superior results achieved with TP-AABR-ACK composite were attributed to controlled morphologies, reduced particle size and agglomeration, improved absorptivity, and superior cooperative effect between the AABR and ACK catalyst promoter as evidenced from SEM, EDX, TEM, UV-DRS, and electrochemical characterizations, respectively. Furthermore, enhanced TOC removal and abundance of reactive superoxide anion generation were achieved with the TP-AABR-ACK composite in this study.Saheed O. SanniHendrik G. BrinkElvera L. ViljoenMDPI AGarticlesilver/silver bromideactivated carboncontrolled microstructurestetracycline degradationreactive oxygen speciesChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1396, p 1396 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	silver/silver bromide activated carbon controlled microstructures tetracycline degradation reactive oxygen species Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	silver/silver bromide activated carbon controlled microstructures tetracycline degradation reactive oxygen species Chemical technology TP1-1185 Chemistry QD1-999 Saheed O. Sanni Hendrik G. Brink Elvera L. Viljoen Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline
description	The influence of the synthesis approach (thermal polyol and deposition–precipitation) regarding the dispersion of Ag/AgBr nanoparticles dispersed on activated carbon prepared from chemical impregnated pinecone (TP-AABR-ACK, and DP-AABR-ACK) was studied, to increase their photocatalytic efficiency on the degradation of tetracycline (TC). The physicochemical characterization evidenced the significance of the ACK catalyst promoter in enhancing controlled microstructures (morphologies and particle size distributions), synergistic interface interaction between AABR NPs and the carbonaceous support, and efficient photogenerated charge carriers separation within TP-AABR-ACK, and DP-AABR-ACK composites. The results revealed 92% removal of TC within 180 min under the LED visible light irradiation, which was achieved using TP-AABR-ACK when compared to DP-AABR-ACK composite and other catalysts in this study. Such superior results achieved with TP-AABR-ACK composite were attributed to controlled morphologies, reduced particle size and agglomeration, improved absorptivity, and superior cooperative effect between the AABR and ACK catalyst promoter as evidenced from SEM, EDX, TEM, UV-DRS, and electrochemical characterizations, respectively. Furthermore, enhanced TOC removal and abundance of reactive superoxide anion generation were achieved with the TP-AABR-ACK composite in this study.
format	article
author	Saheed O. Sanni Hendrik G. Brink Elvera L. Viljoen
author_facet	Saheed O. Sanni Hendrik G. Brink Elvera L. Viljoen
author_sort	Saheed O. Sanni
title	Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline
title_short	Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline
title_full	Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline
title_fullStr	Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline
title_full_unstemmed	Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline
title_sort	influence of synthesis approach on controlled microstructures and photocatalytic properties of ag/agbr-activated carbon composites on visible light degradation of tetracycline
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2f5474c2a78844ea80b58b13981edebe
work_keys_str_mv	AT saheedosanni influenceofsynthesisapproachoncontrolledmicrostructuresandphotocatalyticpropertiesofagagbractivatedcarboncompositesonvisiblelightdegradationoftetracycline AT hendrikgbrink influenceofsynthesisapproachoncontrolledmicrostructuresandphotocatalyticpropertiesofagagbractivatedcarboncompositesonvisiblelightdegradationoftetracycline AT elveralviljoen influenceofsynthesisapproachoncontrolledmicrostructuresandphotocatalyticpropertiesofagagbractivatedcarboncompositesonvisiblelightdegradationoftetracycline
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Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline

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