Immobilization of Iron Minerals on a Layered Silicate for Enhancing its Solar Photocatalytic Activity toward H2 Production

The development of efficient and cost-effective solar photocatalysts capable of producing hydrogen from formic acid as a hydrogen storage medium is still a challenging issue. Herein, we report that iron minerals, ferric iron hydroxy sulfates (FHS), immobilized on a natural layered silicate, magadiit...

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Bibliographic Details
Published in:Frontiers in energy research 2021-03, Vol.9
Main Authors: El-Hosainy, Hamza, Tahawy, Rafat, Esmat, Mohamed, El-Kemary, Maged, Ide, Yusuke
Format: Article
Language:English
Subjects:
formic acid
hydrogen storage
iron minerals
layered silicate
magadiite
photocatalyst
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Summary:The development of efficient and cost-effective solar photocatalysts capable of producing hydrogen from formic acid as a hydrogen storage medium is still a challenging issue. Herein, we report that iron minerals, ferric iron hydroxy sulfates (FHS), immobilized on a natural layered silicate, magadiite, can be used as a photocatalyst to produce hydrogen from formic acid under irradiation with solar simulator. The material exhibits the hydrogen production rate of 470 μmol g −1  h −1 , which is considerably higher than that obtained on other iron minerals and comparable to that obtained on precious metal-based photocatalyst ever reported. The present result may open a way to design efficient photocatalyst for hydrogen production from formic acid in an economically and environmentally friendly way.
ISSN:2296-598X
2296-598X
DOI:10.3389/fenrg.2021.630535