Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating

The presented investigation focuses on the development of a novel microgap reactor concept for the photocatalytic degradation of micropollutants from aqueous solutions with titanium dioxide-based catalysts immobilized by spray coating. Combinatorial experiment designs were utilized in order to study...

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Autores principales:	Tony B. Engelhardt, Minrui Zhu, Claudia Heilmann, Sabine Schmitz-Stöwe, Thomas Schwarz, Klaus Stöwe
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	microgap reactor photocatalysis TiO<sub>2</sub> P25 endocrine disruptors UHPLC-MS/MS Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/05612fbe479c4d3e9803d76a0dbf0ec3
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spelling	oai:doaj.org-article:05612fbe479c4d3e9803d76a0dbf0ec32021-11-25T17:06:13ZDevelopment of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating10.3390/catal111113512073-4344https://doaj.org/article/05612fbe479c4d3e9803d76a0dbf0ec32021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1351https://doaj.org/toc/2073-4344The presented investigation focuses on the development of a novel microgap reactor concept for the photocatalytic degradation of micropollutants from aqueous solutions with titanium dioxide-based catalysts immobilized by spray coating. Combinatorial experiment designs were utilized in order to study the influence of the microgap width, irradiance and catalyst layer thickness on the conversion of 17 α-ethinyl estradiol. The impact of catalyst-doping is discussed as well. Regarding conversion analyses, LC-MS/MS and GC-MS techniques were deployed, while XRD, ESEM and BET were utilized for catalyst characterization. The results show that the built-up microgap reactor system enables a conversion of 65% within a residence time of 2.7 min with UV-A irradiation and under steady flow conditions. Thus, the presented bench scale photocatalysis reactor provides promising fundamental findings for the future development of pilot scale approaches. With the deployment of industrial catalysts and base materials, microgap reactor photocatalytic degradation represents an attractive technology for large-scale application.Tony B. EngelhardtMinrui ZhuClaudia HeilmannSabine Schmitz-StöweThomas SchwarzKlaus StöweMDPI AGarticlemicrogap reactorphotocatalysisTiO<sub>2</sub>P25endocrine disruptorsUHPLC-MS/MSChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1351, p 1351 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	microgap reactor photocatalysis TiO<sub>2</sub> P25 endocrine disruptors UHPLC-MS/MS Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	microgap reactor photocatalysis TiO<sub>2</sub> P25 endocrine disruptors UHPLC-MS/MS Chemical technology TP1-1185 Chemistry QD1-999 Tony B. Engelhardt Minrui Zhu Claudia Heilmann Sabine Schmitz-Stöwe Thomas Schwarz Klaus Stöwe Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating
description	The presented investigation focuses on the development of a novel microgap reactor concept for the photocatalytic degradation of micropollutants from aqueous solutions with titanium dioxide-based catalysts immobilized by spray coating. Combinatorial experiment designs were utilized in order to study the influence of the microgap width, irradiance and catalyst layer thickness on the conversion of 17 α-ethinyl estradiol. The impact of catalyst-doping is discussed as well. Regarding conversion analyses, LC-MS/MS and GC-MS techniques were deployed, while XRD, ESEM and BET were utilized for catalyst characterization. The results show that the built-up microgap reactor system enables a conversion of 65% within a residence time of 2.7 min with UV-A irradiation and under steady flow conditions. Thus, the presented bench scale photocatalysis reactor provides promising fundamental findings for the future development of pilot scale approaches. With the deployment of industrial catalysts and base materials, microgap reactor photocatalytic degradation represents an attractive technology for large-scale application.
format	article
author	Tony B. Engelhardt Minrui Zhu Claudia Heilmann Sabine Schmitz-Stöwe Thomas Schwarz Klaus Stöwe
author_facet	Tony B. Engelhardt Minrui Zhu Claudia Heilmann Sabine Schmitz-Stöwe Thomas Schwarz Klaus Stöwe
author_sort	Tony B. Engelhardt
title	Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating
title_short	Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating
title_full	Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating
title_fullStr	Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating
title_full_unstemmed	Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating
title_sort	development of a novel microgap reactor system for the photocatalytic degradation of micropollutants from aqueous solutions with tio<sub>2</sub>-based photocatalysts immobilized by spray coating
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/05612fbe479c4d3e9803d76a0dbf0ec3
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Development of a Novel Microgap Reactor System for the Photocatalytic Degradation of Micropollutants from Aqueous Solutions with TiO<sub>2</sub>-Based Photocatalysts Immobilized by Spray Coating

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