B. Neppolian et al., Kinetics of photocatalytic degradation of reactive yellow 17 dye in aqueous solution using UV irradiation, J ENVIR S A, 36(2), 2001, pp. 203-213
Citations number
13
Categorie Soggetti
Environment/Ecology
Journal title
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
In this paper photoinduced degradation of reactive yellow 17 (RY 17) dye ha
s been studied employing TiO2 in the form of slurry in a batch reactor. UV
lamps were used as the source for irradiation. The disappearance of the dye
in the solution follows approximately pseudo-first order kinetics. The app
arent rate constant decreases with increase in initial concentration of the
dye. The addition of oxygen, hydrogen peroxide and persulphate ion influen
ces the degradation rate of the dye. The formation of CO2, SO42-, NO3- and
NH4+ ions have been identified in the mineralisation process. The decolouri
sation and mineralisation were followed by UV-Visible spectrophotometer and
high performance liquid chromatography respectively. The results reveal th
at photocatalytic degradation may be a useful technique in the removal of r
eactive dyes in wastewater from textile industries.