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dc.contributor.author | Sanni, Saheed O.![]() |
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dc.contributor.author | Brink, Hendrik Gideon![]() |
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dc.contributor.author | Viljoen, Elvera L.![]() |
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dc.date.accessioned | 2022-07-20T13:02:07Z | |
dc.date.available | 2022-07-20T13:02:07Z | |
dc.date.issued | 2021-11-18 | |
dc.description | Supplementary Materials: Figure S1: Thermogravimetric analysis of ACK, DP-AABR-ACK, and TP-AABR-ACK, Figure S2: Photocatalytic degradation efficiencies of (A) ciprofloxacin, and (B) rhodamine B as a function of irradiation time for (a) TP-AABR-ACK, (b) DP-AABR-ACK, (c) TPAABR, (d) DP-AABR and (e) photolysis, Figure S3: Reusability test AABR-ACK nanocomposites for the degradation of TC under LED visible light illumination, and (b) XRD patterns of the AABR-ACK nanocomposites prior, and then afterward test. | en_US |
dc.description.abstract | 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 TPAABR- 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. | en_US |
dc.description.department | Chemical Engineering | en_US |
dc.description.librarian | am2022 | en_US |
dc.description.sponsorship | The Sasol University Collaboration Program, National Research Foundation of South Africa, the Vaal University of Technology and the Built Environment and Information Technology Department, University of Pretoria. | en_US |
dc.description.uri | https://www.mdpi.com/journal/catalysts | en_US |
dc.identifier.citation | Sanni, S.O.; Brink, H.G.; Viljoen, E.L. Influence of Synthesis Approach on Controlled Microstructures and Photocatalytic Properties of Ag/AgBr-Activated Carbon Composites on Visible Light Degradation of Tetracycline. Catalysts 2021, 11, 1396. https://DOI.org/10.3390/catal11111396. | en_US |
dc.identifier.issn | 2073-4344 (online) | |
dc.identifier.other | 10.3390/catal11111396 | |
dc.identifier.uri | https://repository.up.ac.za/handle/2263/86320 | |
dc.language.iso | en | en_US |
dc.publisher | MDPI | en_US |
dc.rights | © 2021 by the authors. 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. | en_US |
dc.subject | Silver/silver bromide | en_US |
dc.subject | Activated carbon | en_US |
dc.subject | Controlled microstructures | en_US |
dc.subject | Tetracycline degradation | en_US |
dc.subject | Reactive oxygen species | en_US |
dc.title | Influence of synthesis approach on controlled microstructures and photocatalytic properties of ag/agbr-activated carbon composites on visible light degradation of tetracycline | en_US |
dc.type | Article | en_US |