Photocatalytic degradation of rose Bengal by semiconducting zinc sulphide used as a photocatalyst

• Main Authors: Sharma Shweta, Ameta Rakshit, Malkani R.K., Ameta Suresh C.
• Format: Article
• Language: English
• Published: Serbian Chemical Society 2013-01-01
• Series: Journal of the Serbian Chemical Society
• Subjects: semiconductor; photocatalyst; Rose Bengal; zinc sulphide; hydroxyl radical
• Online Access: http://www.doiserbia.nb.rs/img/doi/0352-5139/2013/0352-51391200141S.pdf
• ISSN: 0352-5139

Various semiconductors have been used as photocatalysts for removal of different dyes from their aqueous solutions. Zinc sulphide semiconductor is used in the present investigation as a photocatalyst for the removal of rose Bengal dye. Effect of different parameters, which affect the rate of reaction; like pH, concentration of dye, amount of semiconductor and light intensity have been studied. A mechanism has also been proposed in which hydroxyl radicals are shown as an active oxidizing species.