Reduced graphene oxide is not a universal promoter for photocatalytic activities of TiO2

Addition of reduced graphene oxide (RGO) to P25 TiO2 was made and its impacts on photocatalytic oxidation of various organic substances were studied. Although the presence of RGO in TiO2 can enhance certain TiO2-based photocatalytic reactions, it is not a universal observation that can be expected i...

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Bibliographic Details
Main Authors: Hui Ling Tan, Frans Denny, Mandalena Hermawan, Roong Jien Wong, Rose Amal, Yun Hau Ng
Format: Article
Language:English
Published: Elsevier 2017-03-01
Series:Journal of Materiomics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352847816301319
Description
Summary:Addition of reduced graphene oxide (RGO) to P25 TiO2 was made and its impacts on photocatalytic oxidation of various organic substances were studied. Although the presence of RGO in TiO2 can enhance certain TiO2-based photocatalytic reactions, it is not a universal observation that can be expected in all types of organic substances. The factor of photocatalytic activity enhancement is strongly affected by the various functional groups appeared in the organic substances. In this work, it is realised that the length of alkyl chain in alcohols and carboxylic acids have the minimum influence on the overall activity while the number of hydroxyl groups can promote the further activity enhancement in the presence of RGO.
ISSN:2352-8478