High Photocatalytic Performance of Two Types of Graphene Modified TiO₂ Composite Photocatalysts.

ABSTRACT: High quality and naturally continuous structure of three-dimensional graphene network (3DGN) endow it a promising candidate to modify TiO₂. Although the resulting composite photocatalysts display outstanding performances, the lacking of active sites of the 3DGN not only goes against a close contact between the graphene basal plane and TiO₂ nanoparticles (weaken electron transport ability) but also limits the efficient adsorption of pollutant molecules. Similar with surface functional groups of the reduced graphene oxide (RGO) nanosheets, surface defects of the 3DGN can act as the adsorption sites. However, the defect density of the 3DGN is difficult to control (a strict cool rate of substrate and a strict flow of precursor gas are necessary) because of its growth appr

SUBMITTER: Zhang J 

PROVIDER: S-EPMC5511128 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature