Biohydrogen production from photodecomposition of various cellulosic biomass wastes using metal-TiO2 catalysts

Biohydrogen generation from direct photocatalytic decomposition of lignocellulose biomass waste was investigated using TiO 2 with metal co-catalysts. The behavior of the photocatalyst was explored by studying the effect of metal co-catalysts (Pd, Cu, Ni, Ce) and the amount of metal loading. The reac...

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Bibliographic Details
Published in:Biomass conversion and biorefinery 2023-07, Vol.13 (10), p.8701-8712
Main Authors: Abdul Razak, Syaahidah, Mahadi, Abdul Hanif, Abdullah, Rosnah, Yasin, Hartini Mohd, Ja’afar, Fairuzeta, Abdul Rahman, Norizah, Bahruji, Hasliza
Format: Article
Language:English
Subjects:
Acetic acid
Biomass
Biotechnology
Catalysts
Cellulose
Copper
Cotton
Decomposition reactions
Degree of polymerization
Energy
Hydrogen production
Hydrothermal treatment
Lignocellulose
Nickel
Original Article
Palladium
Photocatalysis
Photodecomposition
Renewable and Green Energy
Sugar
Titanium dioxide
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Summary:Biohydrogen generation from direct photocatalytic decomposition of lignocellulose biomass waste was investigated using TiO 2 with metal co-catalysts. The behavior of the photocatalyst was explored by studying the effect of metal co-catalysts (Pd, Cu, Ni, Ce) and the amount of metal loading. The reactivity of TiO 2 was found to vary depending on the metal co-catalysts, with the order of reactivity being Pd > Cu > Ni = Ce. Cellulose samples extracted from coconut husk, fern fiber, and cotton linter were characterized using XRD, FTIR, and SEM analysis. Crystallinity index (CI), degree of polymerization (DP), and α-cellulose and hemicellulose concentrations were correlated with hydrogen yield. Cotton linter cellulose with high CI and DP produced 131 μmol of H 2 in 3 h followed by cellulose extracted from coconut husk at 38 μmol and fern fibers at 6 μmol. High concentrations of hemicellulose enhanced the rate of H 2 production due to the release of acetic acid during photodecomposition and accelerated the hydrolysis. Sugar fractions containing glucose and fructose obtained from hydrothermal treatment of cotton linter cellulose improved H 2 yield, which suggests that the rate limiting step of the reaction is the dissociation of β(1→4)-glycosidic bonds to form sugar monomers.
ISSN:2190-6815
2190-6823
DOI:10.1007/s13399-020-01164-4