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A Kinetic Model of Photocatalytic Hydrogen Production Employing a Hole Scavenger
Author(s) -
Durán-Pérez José F.,
García-Martínez Julio C.,
Medina-Mendoza Ana K.,
Puebla-Núñez Héctor,
González-Brambila Margarita M.,
Colín-Luna Jose Antonio
Publication year - 2019
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800557
Subject(s) - photocatalysis , hydrogen production , scavenger , adsorption , decomposition , kinetic energy , chemistry , hydrogen , hydrolysis , photochemistry , chemical engineering , materials science , catalysis , organic chemistry , radical , physics , quantum mechanics , engineering
Reactions involved in photocatalytic hydrogen production through water splitting combined with a hole scavenger involve several stages that make kinetic analysis quite complicated. In the present work, a kinetic model for the photocatalytic production of hydrogen has been developed based on competitive adsorption, considering the photocatalytic decomposition of an organic molecule coupled to hydrolysis through photocatalytic water splitting. Parameter estimation is performed by using the Levenberg‐Marquardt method. Model validation results give an estimation of the strength of adsorption of acetol and the acetaldehyde.