title: Photodegradation of hazardous dye quinoline yellow catalyzed by TiO2.
abstract: The photocatalytic degradation of hazardous dye quinoline yellow, employing a heterogeneous photocatalytic process using TiO(2) photocatalyst irradiated with 6 W UV light source tungsten lamp, has been studied. The effect of various operational parameters, i.e., dye concentration, photocatalyst concentration, pH of the solution, substrate concentration, and electron acceptor such as hydrogen peroxide on the degradation rate of aqueous solutions of quinoline yellow has been examined. The disappearance of the dye follows a pseudo first order kinetics according to the Langmuir Hinshelwood model. Results show that the use of an efficient photocatalyst and the selection of optimal operational parameters may lead to complete decolorization and to sustainable decrease in the chemical oxygen demand (COD) of the dye waste water.
authors.affiliation: Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247 667, India. Electronic address: vinodfcy@gmail.com.
authors.forename: Vinod Kumar
authors.initials: VK
authors.lastname: Gupta
authors.affiliation: Chemistry Department, Jiwaji University, Gwalior, MP, India.
authors.forename: Rajeev
authors.initials: R
authors.lastname: Jain
authors.affiliation: Chemistry Department, Jiwaji University, Gwalior, MP, India.
authors.forename: Shilpi
authors.initials: S
authors.lastname: Agarwal
authors.affiliation: Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247 667, India.
authors.forename: Arunima
authors.initials: A
authors.lastname: Nayak
authors.affiliation: Chemistry Department, Jiwaji University, Gwalior, MP, India.
authors.forename: Meenakshi
authors.initials: M
authors.lastname: Shrivastava