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The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment

Using municipal sewage as a source of reclaimed water is an important way to alleviate the shortage of water resources. At present, advanced oxidation technology (AOPs), represented by ozone oxidation, is widely used in wastewater treatment. In this study, γ-Al(2)O(3), a low-cost traditional ozone c...

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Autores principales: Wang, Cheng, Zhou, Guangzhen, Xu, Yanhua, Yu, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9738670/
https://www.ncbi.nlm.nih.gov/pubmed/36499956
http://dx.doi.org/10.3390/ma15238459
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author Wang, Cheng
Zhou, Guangzhen
Xu, Yanhua
Yu, Peng
author_facet Wang, Cheng
Zhou, Guangzhen
Xu, Yanhua
Yu, Peng
author_sort Wang, Cheng
collection PubMed
description Using municipal sewage as a source of reclaimed water is an important way to alleviate the shortage of water resources. At present, advanced oxidation technology (AOPs), represented by ozone oxidation, is widely used in wastewater treatment. In this study, γ-Al(2)O(3), a low-cost traditional ozone catalyst, was selected as the matrix. By modifying magnetic γ-Fe(2)O(3) with a titanate coupling agent, in situ deposition, and calcination, the final formation of a γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3) micrometer ozone catalyst was achieved. A variety of material characterization methods were used to demonstrate that the required material was successfully prepared. The catalyst powder particles have strong magnetic properties, form aggregates easily, and have good precipitation and separation properties. Subsequently, ibuprofen was used as the degradation substrate to investigate the ozone catalytic performance of the prepared catalyst, and this proved that it had good ozone catalytic activity. The degradation process was also analyzed. The results showed that in the ozone system, some of the ibuprofen molecules will be oxidized to form 1,4-propanal phenylacetic acid, which is then further oxidized to form 1,4-acetaldehyde benzoic acid and p-phenylacetaldehyde. Finally, the prepared catalyst was applied to the actual wastewater treatment process, and it also had good catalytic performance in this context. GC–MS detection of the water samples after treatment showed that the types of organic matter in the water were significantly reduced, among which nine pollutants with high content, such as bisphenol A and sulfamethoxazole, were not detected after treatment.
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spelling pubmed-97386702022-12-11 The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment Wang, Cheng Zhou, Guangzhen Xu, Yanhua Yu, Peng Materials (Basel) Article Using municipal sewage as a source of reclaimed water is an important way to alleviate the shortage of water resources. At present, advanced oxidation technology (AOPs), represented by ozone oxidation, is widely used in wastewater treatment. In this study, γ-Al(2)O(3), a low-cost traditional ozone catalyst, was selected as the matrix. By modifying magnetic γ-Fe(2)O(3) with a titanate coupling agent, in situ deposition, and calcination, the final formation of a γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3) micrometer ozone catalyst was achieved. A variety of material characterization methods were used to demonstrate that the required material was successfully prepared. The catalyst powder particles have strong magnetic properties, form aggregates easily, and have good precipitation and separation properties. Subsequently, ibuprofen was used as the degradation substrate to investigate the ozone catalytic performance of the prepared catalyst, and this proved that it had good ozone catalytic activity. The degradation process was also analyzed. The results showed that in the ozone system, some of the ibuprofen molecules will be oxidized to form 1,4-propanal phenylacetic acid, which is then further oxidized to form 1,4-acetaldehyde benzoic acid and p-phenylacetaldehyde. Finally, the prepared catalyst was applied to the actual wastewater treatment process, and it also had good catalytic performance in this context. GC–MS detection of the water samples after treatment showed that the types of organic matter in the water were significantly reduced, among which nine pollutants with high content, such as bisphenol A and sulfamethoxazole, were not detected after treatment. MDPI 2022-11-28 /pmc/articles/PMC9738670/ /pubmed/36499956 http://dx.doi.org/10.3390/ma15238459 Text en © 2022 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
Wang, Cheng
Zhou, Guangzhen
Xu, Yanhua
Yu, Peng
The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment
title The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment
title_full The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment
title_fullStr The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment
title_full_unstemmed The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment
title_short The Effect of Magnetic Composites (γ-Al(2)O(3)/TiO(2)/γ-Fe(2)O(3)) as Ozone Catalysts in Wastewater Treatment
title_sort effect of magnetic composites (γ-al(2)o(3)/tio(2)/γ-fe(2)o(3)) as ozone catalysts in wastewater treatment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9738670/
https://www.ncbi.nlm.nih.gov/pubmed/36499956
http://dx.doi.org/10.3390/ma15238459
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