Wirda Udaibah, Didi Dwi Anggoro, Aji Prasetyaningrum, Abdullah Bafaqeer, Nor Aishah Saidina Amin
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An enhanced production of biomethane from cellulose photoreforming driven by titania morphological modification
This article studies the influence of titania morphology on the biomethane production from cellulose through photoreforming. First, TiO2 P25 was modified to titania nanotube (TiNT) via short-time hydrothermal reaction. It was confirmed by SEM and TEM that the nanotube morphology of titania could be obtained after heating at 150°C for 7 h. The XRD patterns of the produced powders showed the existence of anatase crystalline phases, with no appearance of rutile. Our mesoporous TiNT had the surface area twice larger than commercial TiO2 P25 and its bandgap energy was 3.23 eV, which was smaller than TiO2 P25. Its electron lifetime was longer than TiO2 P25 (6.82 × 10–8 s). Due to the better character of TiNT, its cellulose photoreforming to biomethane through TiNT was three times higher than that of TiO2 P25. The photoreforming by TiNT was 17020 μmol g−1 catalyst, while by TiO2 P25 was 6560 μmol g−1 catalyst. In this work we also proposed the mechanism of cellulose photoconversion. Overall, TiNT can be a potential photocatalyst in biomass photoreforming reaction.
期刊介绍：
Reaction Kinetics, Mechanisms and Catalysis is a medium for original contributions in the following fields:
-kinetics of homogeneous reactions in gas, liquid and solid phase;
-Homogeneous catalysis;
-Heterogeneous catalysis;
-Adsorption in heterogeneous catalysis;
-Transport processes related to reaction kinetics and catalysis;
-Preparation and study of catalysts;
-Reactors and apparatus.
Reaction Kinetics, Mechanisms and Catalysis was formerly published under the title Reaction Kinetics and Catalysis Letters.
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