Porous ceramic foam loading titanium dioxide for photocatalytic degradation of the methyl orange solution
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 11 September 2019
Issue publication date: 21 October 2019
Abstract
Purpose
The purpose of this paper is to provide an investigation on a new kind of photocatalytic material, namely, the porous ceramic foam loading titanium dioxide, which can make an effective photocatalytic degradation of the methyl orange (MO) solution in the wastewater.
Design/methodology/approach
The natural zeolite powder has been used as the primary raw material to produce a sort of lightweight porous ceramic foam by impregnating polymer foam in slurry and then sintering. With the sol-gel method, a kind of open-cell reticular porous ceramic foam loading TiO2 film was obtained having a good photocatalytic action, and the resultant porous composite product presents the bulk density of 0.3~0.6 g/cm3 to be able to float on water.
Findings
The MO could tend to be completely degraded in the solution with a certain concentration by the TiO2-loaded ceramic foam irradiated with ultraviolet light, and this composite foam was found to have high degradation efficiency for the MO solution in a wide range of pH.
Originality/value
This work presents a TiO2-loaded ceramic foam that can effectively photo-catalyze to degrade the MO in water, and the degradation efficiency were examined under different conditions of the MO solution with various pH values.
Keywords
Acknowledgements
The financial support of the Testing Foundation of BNU (C18) and the experimental assistance of Z.X. YANG in sample preparation and SEM observation are both greatly appreciated.
Citation
Guo, Y.J., Cheng, W. and Liu, P.S. (2019), "Porous ceramic foam loading titanium dioxide for photocatalytic degradation of the methyl orange solution", Multidiscipline Modeling in Materials and Structures, Vol. 15 No. 6, pp. 1366-1378. https://doi.org/10.1108/MMMS-03-2019-0049
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited