Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization

Photocatalytic inactivation of pathogens in aqueous waste is gaining increasing attention. Several homogeneous and heterogeneous photocatalytic protocols exist using the Fenton’s reagent and TiO<sub<2</sub<, respectively. A comprehensive study of homogeneous and heterogeneous photocataly...
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Autor*in:	Eirini Kanata [verfasserIn] Ioannis Paspaltsis [verfasserIn] Sotiris Sotiriadis [verfasserIn] Chrysanthi Berberidou [verfasserIn] Sophia Tsoumachidou [verfasserIn] Dimitra Dafou [verfasserIn] Konstantinos Xanthopoulos [verfasserIn] Minas Arsenakis [verfasserIn] Athanasios Arsenakis [verfasserIn] Ioannis Poulios [verfasserIn] Theodoros Sklaviadis [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	photocatalytic oxidation TiO photo-Fenton microorganism inactivation MS2

Übergeordnetes Werk:	In: Molecules - MDPI AG, 2003, 28(2023), 3, p 1199
Übergeordnetes Werk:	volume:28 ; year:2023 ; number:3, p 1199

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/molecules28031199

Katalog-ID:	DOAJ080614450

Internformat


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allfieldsSound	10.3390/molecules28031199 doi (DE-627)DOAJ080614450 (DE-599)DOAJa2fefc1a61b047229274a0bb3dc5a569 DE-627 ger DE-627 rakwb eng QD241-441 Eirini Kanata verfasserin aut Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Photocatalytic inactivation of pathogens in aqueous waste is gaining increasing attention. Several homogeneous and heterogeneous photocatalytic protocols exist using the Fenton’s reagent and TiO<sub<2</sub<, respectively. A comprehensive study of homogeneous and heterogeneous photocatalysis on a range of microorganisms will significantly establish the most efficient method. Here, we report a comparative study of TiO<sub<2</sub<- and Fe<sup<+3</sup<-based photocatalytic inactivation under UV-A of diverse microorganisms, including Gram-positive (<i<Staphylococcus aureus</i<) and Gram-negative (<i<Escherichia coli</i<) bacteria, bacterial spores (<i<Bacillus stearothermophilus</i< spores) and viruses (MS2). We also present data on the optimization of TiO<sub<2</sub< photocatalysis, including optimal catalyst concentration and H<sub<2</sub<O<sub<2</sub< supplementation. Our results indicate that both photo-Fenton and TiO<sub<2</sub< could be successfully applied for the management of microbial loads in liquids. Efficient microorganism inactivation is achieved with homogeneous photocatalysis (7 mg/L Fe<sup<+3</sup<, 100 mg/L H<sub<2</sub<O<sub<2</sub<, UV-A) in a shorter processing time compared to heterogeneous photocatalysis (0.5 g/L TiO<sub<2</sub<, UV-A), whereas similar or shorter processing is required when heterogenous photocatalysis is performed using microorganism-specific optimized TiO<sub<2</sub< concentrations and H<sub<2</sub<O<sub<2</sub< supplementation (100 mg/L); higher H<sub<2</sub<O<sub<2</sub< concentrations further enhance the heterogenous photocatalytic inactivation efficiency. Our study provides a template protocol for the design and further application for large-scale photocatalytic approaches to inactivate pathogens in liquid biomedical waste. photocatalytic oxidation TiO<sub<2</sub< photo-Fenton microorganism inactivation <i<Bacillus stearothermophilus</i< spores MS2 Organic chemistry Ioannis Paspaltsis verfasserin aut Sotiris Sotiriadis verfasserin aut Chrysanthi Berberidou verfasserin aut Sophia Tsoumachidou verfasserin aut Dimitra Dafou verfasserin aut Konstantinos Xanthopoulos verfasserin aut Minas Arsenakis verfasserin aut Athanasios Arsenakis verfasserin aut Ioannis Poulios verfasserin aut Theodoros Sklaviadis verfasserin aut In Molecules MDPI AG, 2003 28(2023), 3, p 1199 (DE-627)311313132 (DE-600)2008644-1 14203049 nnns volume:28 year:2023 number:3, p 1199 https://doi.org/10.3390/molecules28031199 kostenfrei https://doaj.org/article/a2fefc1a61b047229274a0bb3dc5a569 kostenfrei https://www.mdpi.com/1420-3049/28/3/1199 kostenfrei https://doaj.org/toc/1420-3049 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 28 2023 3, p 1199
language	English
source	In Molecules 28(2023), 3, p 1199 volume:28 year:2023 number:3, p 1199
sourceStr	In Molecules 28(2023), 3, p 1199 volume:28 year:2023 number:3, p 1199
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	photocatalytic oxidation TiO<sub<2</sub< photo-Fenton microorganism inactivation <i<Bacillus stearothermophilus</i< spores MS2 Organic chemistry
isfreeaccess_bool	true
container_title	Molecules
authorswithroles_txt_mv	Eirini Kanata @@aut@@ Ioannis Paspaltsis @@aut@@ Sotiris Sotiriadis @@aut@@ Chrysanthi Berberidou @@aut@@ Sophia Tsoumachidou @@aut@@ Dimitra Dafou @@aut@@ Konstantinos Xanthopoulos @@aut@@ Minas Arsenakis @@aut@@ Athanasios Arsenakis @@aut@@ Ioannis Poulios @@aut@@ Theodoros Sklaviadis @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	311313132
id	DOAJ080614450
language_de	englisch
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callnumber-first	Q - Science
author	Eirini Kanata
spellingShingle	Eirini Kanata misc QD241-441 misc photocatalytic oxidation misc TiO<sub<2</sub< misc photo-Fenton misc microorganism inactivation misc <i<Bacillus stearothermophilus</i< spores misc MS2 misc Organic chemistry Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization
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topic_title	QD241-441 Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization photocatalytic oxidation TiO<sub<2</sub< photo-Fenton microorganism inactivation <i<Bacillus stearothermophilus</i< spores MS2
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title	Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization
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title_full	Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization
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author_browse	Eirini Kanata Ioannis Paspaltsis Sotiris Sotiriadis Chrysanthi Berberidou Sophia Tsoumachidou Dimitra Dafou Konstantinos Xanthopoulos Minas Arsenakis Athanasios Arsenakis Ioannis Poulios Theodoros Sklaviadis
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title_sort	photo-fenton and tio<sub<2</sub< photocatalytic inactivation of model microorganisms under uv-a; comparative efficacy and optimization
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title_auth	Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization
abstract	Photocatalytic inactivation of pathogens in aqueous waste is gaining increasing attention. Several homogeneous and heterogeneous photocatalytic protocols exist using the Fenton’s reagent and TiO<sub<2</sub<, respectively. A comprehensive study of homogeneous and heterogeneous photocatalysis on a range of microorganisms will significantly establish the most efficient method. Here, we report a comparative study of TiO<sub<2</sub<- and Fe<sup<+3</sup<-based photocatalytic inactivation under UV-A of diverse microorganisms, including Gram-positive (<i<Staphylococcus aureus</i<) and Gram-negative (<i<Escherichia coli</i<) bacteria, bacterial spores (<i<Bacillus stearothermophilus</i< spores) and viruses (MS2). We also present data on the optimization of TiO<sub<2</sub< photocatalysis, including optimal catalyst concentration and H<sub<2</sub<O<sub<2</sub< supplementation. Our results indicate that both photo-Fenton and TiO<sub<2</sub< could be successfully applied for the management of microbial loads in liquids. Efficient microorganism inactivation is achieved with homogeneous photocatalysis (7 mg/L Fe<sup<+3</sup<, 100 mg/L H<sub<2</sub<O<sub<2</sub<, UV-A) in a shorter processing time compared to heterogeneous photocatalysis (0.5 g/L TiO<sub<2</sub<, UV-A), whereas similar or shorter processing is required when heterogenous photocatalysis is performed using microorganism-specific optimized TiO<sub<2</sub< concentrations and H<sub<2</sub<O<sub<2</sub< supplementation (100 mg/L); higher H<sub<2</sub<O<sub<2</sub< concentrations further enhance the heterogenous photocatalytic inactivation efficiency. Our study provides a template protocol for the design and further application for large-scale photocatalytic approaches to inactivate pathogens in liquid biomedical waste.
abstractGer	Photocatalytic inactivation of pathogens in aqueous waste is gaining increasing attention. Several homogeneous and heterogeneous photocatalytic protocols exist using the Fenton’s reagent and TiO<sub<2</sub<, respectively. A comprehensive study of homogeneous and heterogeneous photocatalysis on a range of microorganisms will significantly establish the most efficient method. Here, we report a comparative study of TiO<sub<2</sub<- and Fe<sup<+3</sup<-based photocatalytic inactivation under UV-A of diverse microorganisms, including Gram-positive (<i<Staphylococcus aureus</i<) and Gram-negative (<i<Escherichia coli</i<) bacteria, bacterial spores (<i<Bacillus stearothermophilus</i< spores) and viruses (MS2). We also present data on the optimization of TiO<sub<2</sub< photocatalysis, including optimal catalyst concentration and H<sub<2</sub<O<sub<2</sub< supplementation. Our results indicate that both photo-Fenton and TiO<sub<2</sub< could be successfully applied for the management of microbial loads in liquids. Efficient microorganism inactivation is achieved with homogeneous photocatalysis (7 mg/L Fe<sup<+3</sup<, 100 mg/L H<sub<2</sub<O<sub<2</sub<, UV-A) in a shorter processing time compared to heterogeneous photocatalysis (0.5 g/L TiO<sub<2</sub<, UV-A), whereas similar or shorter processing is required when heterogenous photocatalysis is performed using microorganism-specific optimized TiO<sub<2</sub< concentrations and H<sub<2</sub<O<sub<2</sub< supplementation (100 mg/L); higher H<sub<2</sub<O<sub<2</sub< concentrations further enhance the heterogenous photocatalytic inactivation efficiency. Our study provides a template protocol for the design and further application for large-scale photocatalytic approaches to inactivate pathogens in liquid biomedical waste.
abstract_unstemmed	Photocatalytic inactivation of pathogens in aqueous waste is gaining increasing attention. Several homogeneous and heterogeneous photocatalytic protocols exist using the Fenton’s reagent and TiO<sub<2</sub<, respectively. A comprehensive study of homogeneous and heterogeneous photocatalysis on a range of microorganisms will significantly establish the most efficient method. Here, we report a comparative study of TiO<sub<2</sub<- and Fe<sup<+3</sup<-based photocatalytic inactivation under UV-A of diverse microorganisms, including Gram-positive (<i<Staphylococcus aureus</i<) and Gram-negative (<i<Escherichia coli</i<) bacteria, bacterial spores (<i<Bacillus stearothermophilus</i< spores) and viruses (MS2). We also present data on the optimization of TiO<sub<2</sub< photocatalysis, including optimal catalyst concentration and H<sub<2</sub<O<sub<2</sub< supplementation. Our results indicate that both photo-Fenton and TiO<sub<2</sub< could be successfully applied for the management of microbial loads in liquids. Efficient microorganism inactivation is achieved with homogeneous photocatalysis (7 mg/L Fe<sup<+3</sup<, 100 mg/L H<sub<2</sub<O<sub<2</sub<, UV-A) in a shorter processing time compared to heterogeneous photocatalysis (0.5 g/L TiO<sub<2</sub<, UV-A), whereas similar or shorter processing is required when heterogenous photocatalysis is performed using microorganism-specific optimized TiO<sub<2</sub< concentrations and H<sub<2</sub<O<sub<2</sub< supplementation (100 mg/L); higher H<sub<2</sub<O<sub<2</sub< concentrations further enhance the heterogenous photocatalytic inactivation efficiency. Our study provides a template protocol for the design and further application for large-scale photocatalytic approaches to inactivate pathogens in liquid biomedical waste.
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Photo-Fenton and TiO<sub<2</sub< Photocatalytic Inactivation of Model Microorganisms under UV-A; Comparative Efficacy and Optimization

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