The Challenges of Integrating the Principles of Green Chemistry and Green Engineering to Heterogeneous Photocatalysis to Treat Water and Produce Green H2

Nowadays, heterogeneous photocatalysis for water treatment and hydrogen production are topics gaining interest for scientists and developers from different areas, such as environmental technology and material science. Most of the efforts and resources are devoted to the development of new photocatal...

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Bibliographic Details
Published inCatalysts Vol. 13; no. 1; p. 154
Main Authors Anaya-Rodríguez, Fernanda, Durán-Álvarez, Juan C., Drisya, K. T., Zanella, Rodolfo
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2023
Subjects
automation
Catalysts
Chemical reactions
Efficiency
Emissions
Energy
Fossil fuels
Green chemistry
green chemistry principles
green engineering principles
heterogeneous photocatalysis
Hydrogen
Hydrogen production
Laboratories
Light
Nuclear safety
Oxidation
Photocatalysis
Pollutants
Principles
Semiconductors
upscaling
Water purification
Water treatment
Water treatment plants
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Summary:Nowadays, heterogeneous photocatalysis for water treatment and hydrogen production are topics gaining interest for scientists and developers from different areas, such as environmental technology and material science. Most of the efforts and resources are devoted to the development of new photocatalyst materials, while the modeling and development of reaction systems allowing for upscaling the process to pilot or industrial scale are scarce. In this work, we present what is known on the upscaling of heterogeneous photocatalysis to purify water and to produce green H2. The types of reactors successfully used in water treatment plants are presented as study cases. The challenges of upscaling the photocatalysis process to produce green H2 are explored from the perspectives of (a) the adaptation of photoreactors, (b) the competitiveness of the process, and (c) safety. Throughout the text, Green Chemistry and Engineering Principles are described and discussed on how they are currently being applied to the heterogeneous photocatalysis process along with the challenges that are ahead. Lastly, the role of automation and high-throughput methods in the upscaling following the Green Principles is discussed.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal13010154