Preparation and Characterization of Expanded Graphite with TiO2 Composites

Li Qin Wang; Xiang Ni Yang; Xiu Li Zhao; Rui Jun Zhang; Yu Lin Yang

doi:10.4028/www.scientific.net/AMR.197-198.807

Paper Titles

Preparation and Visible-Light Photocatalytic Activity of TiO₂ Nanotubes from a Hydrothermal Method
p.786

Calcination Temperature Influence on the Microstructure and the Photocatalytic Properties of TiO₂ Pillared Rectorite
p.790

Photocatalytic Degradation of Methylene Blue by Modiflyed TiO₂ under Visible Light
p.796

Preparation and Characterization of Potassium Ferrate
p.800

Preparation and Characterization of Expanded Graphite with TiO₂ Composites
p.807

Investigation of the Performance of V-W Based Catalysts at Low Temperature for NOx Reduction with NH₃
p.811

Preparation and Characterization of Bimetal and Nitrogen Co-Modified Titanium with Visible-Light Activity
p.817

Design and Optimization by Design-Expert Software for Carbon Cycle Mico-Electrolysis Reactor Treatment of the Phenol Wastewater
p.821

Formation of Ketoacids in Filtered River Water with Synthetic Goethite-catalyzed Ozonation
p.826

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 197-198Preparation and Characterization of Expanded...

Preparation and Characterization of Expanded Graphite with TiO₂ Composites

Abstract:

The composites of expanded ghaphite with TiO₂ (EG/TiO₂) have been prepared in the method of precursor mixing, and the optimum preparation conditions have been studied. The morphology and crystal structure of the EG/TiO₂ composites have been characterized by the means of SEM and XRD. Also their performance of decolorization for methyl orange solution has been researched. The results are shown as follows: the EG/TiO₂ composites maintain the rich porous and network structure of EG, and a lot of anatase TiO₂ particles widely distribute on surfaces and in layers of EG. Compared with TiO₂ sol, taking tetrabutyl titanate as titanium source, the prepared EG/TiO₂ composites have better performance. Increasing the added amount of tetrabutyl titanate, the decolorization rate of methyl orange solution increases at first, and then decreases. When adding 2 mL tetralbutyl titanate, the decolorization rate is at the peak, up to 98.4%. These results show the composites have excellent performance of decolorization for methyl orange solution. We suppose it is mainly due to the interaction between the adsorption of EG and the degradation of TiO₂ particles.