A review of photocatalysts prepared by sol-gel method for VOCs removal
- PMID: 20640156
- PMCID: PMC2904920
- DOI: 10.3390/ijms11062336
A review of photocatalysts prepared by sol-gel method for VOCs removal
Abstract
The sol-gel process is a wet-chemical technique (chemical solution deposition), which has been widely used in the fields of materials science, ceramic engineering, and especially in the preparation of photocatalysts. Volatile organic compounds (VOCs) are prevalent components of indoor air pollution. Among the approaches to remove VOCs from indoor air, photocatalytic oxidation (PCO) is regarded as a promising method. This paper is a review of the status of research on the sol-gel method for photocatalyst preparation and for the PCO purification of VOCs. The review and discussion will focus on the preparation and coating of various photocatalysts, operational parameters, and will provide an overview of general PCO models described in the literature.
Keywords: VOCs; photocatalytic oxidation; sol-gel.
References
-
- Fujishima A, Honda K. Electrochemical photolysis of water at a semiconductor electrode. Nature. 1972;238:37–38. - PubMed
-
- Fox MA, Dulay MT. Heterogeneous photocatalysis. Chem. Rev. 1993;83:341–357.
-
- Hoffmann MR, Martin ST, Choi W, Bahnemann DW. Environmental applications of semiconductor photocatalysis. Chem. Rev. 1995;95:69–96.
-
- Linsebigler AL, Lu G, Yates JT. Photocatalysis on TiO2 surfaces: Principles, mechanisms, and selected results. Chem. Rev. 1995;95:735–758.
-
- Dvoranova D, Brezova V, Mazur M, Malati MA. Investigations of metal-doped titanium dioxide photocatalysts. Appl. Catal. B. 2002;37:91–105.
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