Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers

Abstract Heterogeneous catalytic ozonation is an effective approach to degrade refractory organic pollutants in water. However, ozonation catalysts with combined merits of high activity, good reusability and low cost for practical industrial applications are still rare. This study aims to develop an...

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Autores principales:	Guhankumar Ponnusamy, Hajar Farzaneh, Yongfeng Tong, Jenny Lawler, Zhaoyang Liu, Jayaprakash Saththasivam
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b63d2f30d4444f45bd7ab835f64d645d
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spelling	oai:doaj.org-article:b63d2f30d4444f45bd7ab835f64d645d2021-12-02T16:30:57ZEnhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers10.1038/s41598-021-85651-22045-2322https://doaj.org/article/b63d2f30d4444f45bd7ab835f64d645d2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85651-2https://doaj.org/toc/2045-2322Abstract Heterogeneous catalytic ozonation is an effective approach to degrade refractory organic pollutants in water. However, ozonation catalysts with combined merits of high activity, good reusability and low cost for practical industrial applications are still rare. This study aims to develop an efficient, stable and economic ozonation catalyst for the degradation of Ibuprofen, a pharmaceutical compound frequently detected as a refractory pollutant in treated wastewaters. The novel three-dimensional network-structured catalyst, comprising of δ-MnO2 nanosheets grown on woven carbon microfibers (MnO2 nanosheets/carbon microfiber), was synthesized via a facile hydrothermal approach. Catalytic ozonation performance of Ibuprofen removal in water using the new catalyst proves a significant enhancement, where Ibuprofen removal efficiency of close to 90% was achieved with a catalyst loading of 1% (w/v). In contrast, conventional ozonation was only able to achieve 65% removal efficiency under the same operating condition. The enhanced performance with the new catalyst could be attributed to its significantly increased available surface active sites and improved mass transfer of reaction media, as a result of the special surface and structure properties of this new three-dimensional network-structured catalyst. Moreover, the new catalyst displays excellent stability and reusability for ibuprofen degradation over successive reaction cycles. The facile synthesis method and low-cost materials render the new catalyst high potential for industrial scaling up. With the combined advantages of high efficiency, high stability, and low cost, this study sheds new light for industrial applications of ozonation catalysts.Guhankumar PonnusamyHajar FarzanehYongfeng TongJenny LawlerZhaoyang LiuJayaprakash SaththasivamNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Guhankumar Ponnusamy Hajar Farzaneh Yongfeng Tong Jenny Lawler Zhaoyang Liu Jayaprakash Saththasivam Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers
description	Abstract Heterogeneous catalytic ozonation is an effective approach to degrade refractory organic pollutants in water. However, ozonation catalysts with combined merits of high activity, good reusability and low cost for practical industrial applications are still rare. This study aims to develop an efficient, stable and economic ozonation catalyst for the degradation of Ibuprofen, a pharmaceutical compound frequently detected as a refractory pollutant in treated wastewaters. The novel three-dimensional network-structured catalyst, comprising of δ-MnO2 nanosheets grown on woven carbon microfibers (MnO2 nanosheets/carbon microfiber), was synthesized via a facile hydrothermal approach. Catalytic ozonation performance of Ibuprofen removal in water using the new catalyst proves a significant enhancement, where Ibuprofen removal efficiency of close to 90% was achieved with a catalyst loading of 1% (w/v). In contrast, conventional ozonation was only able to achieve 65% removal efficiency under the same operating condition. The enhanced performance with the new catalyst could be attributed to its significantly increased available surface active sites and improved mass transfer of reaction media, as a result of the special surface and structure properties of this new three-dimensional network-structured catalyst. Moreover, the new catalyst displays excellent stability and reusability for ibuprofen degradation over successive reaction cycles. The facile synthesis method and low-cost materials render the new catalyst high potential for industrial scaling up. With the combined advantages of high efficiency, high stability, and low cost, this study sheds new light for industrial applications of ozonation catalysts.
format	article
author	Guhankumar Ponnusamy Hajar Farzaneh Yongfeng Tong Jenny Lawler Zhaoyang Liu Jayaprakash Saththasivam
author_facet	Guhankumar Ponnusamy Hajar Farzaneh Yongfeng Tong Jenny Lawler Zhaoyang Liu Jayaprakash Saththasivam
author_sort	Guhankumar Ponnusamy
title	Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers
title_short	Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers
title_full	Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers
title_fullStr	Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers
title_full_unstemmed	Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers
title_sort	enhanced catalytic ozonation of ibuprofen using a 3d structured catalyst with mno2 nanosheets on carbon microfibers
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b63d2f30d4444f45bd7ab835f64d645d
work_keys_str_mv	AT guhankumarponnusamy enhancedcatalyticozonationofibuprofenusinga3dstructuredcatalystwithmno2nanosheetsoncarbonmicrofibers AT hajarfarzaneh enhancedcatalyticozonationofibuprofenusinga3dstructuredcatalystwithmno2nanosheetsoncarbonmicrofibers AT yongfengtong enhancedcatalyticozonationofibuprofenusinga3dstructuredcatalystwithmno2nanosheetsoncarbonmicrofibers AT jennylawler enhancedcatalyticozonationofibuprofenusinga3dstructuredcatalystwithmno2nanosheetsoncarbonmicrofibers AT zhaoyangliu enhancedcatalyticozonationofibuprofenusinga3dstructuredcatalystwithmno2nanosheetsoncarbonmicrofibers AT jayaprakashsaththasivam enhancedcatalyticozonationofibuprofenusinga3dstructuredcatalystwithmno2nanosheetsoncarbonmicrofibers
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Enhanced catalytic ozonation of ibuprofen using a 3D structured catalyst with MnO2 nanosheets on carbon microfibers

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