title: Decolorization of Acid Red 1 by Fenton-like process using rice husk ash-based catalyst.
abstract: The decolorization of Acid Red 1 (AR1) in aqueous solution was investigated by Fenton-like process. The effect of different reaction parameters such as different iron ions loading on rice husk ash (RHA), dosage of catalyst, initial pH, the initial hydrogen peroxide concentration ([H(2)O(2)](o)), the initial concentration of AR1 ([AR1](o)) and the reaction temperature on the decolorization of AR1 was studied. The optimal reacting conditions were found to be 0.070 wt.% of iron (III) oxide loading on RHA, dosage of catalyst=5.0 g L(-1), initial pH=2.0, [H(2)O(2)](o)=8 mM, [AR1](o)=50 mg L(-1) at temperature 30 degrees C. Under optimal condition, 96% decolorization efficiency of AR1 was achieved within 120 min of reaction.
authors.affiliation: School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
authors.forename: N K
authors.initials: NK
authors.lastname: Daud
authors.forename: B H
authors.initials: BH
authors.lastname: Hameed
mesh_terms: D002384:Catalysis; D003116:Color; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D007700:Kinetics; D012275:Oryza / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry*; D012996:Solutions; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D052584:Xylem / Q000737:chemistry*
chemical_list: C045076:Fenton's reagent; D012235:Rhodamines; D012996:Solutions; D014874:Water Pollutants, Chemical; C022027:lissamine rhodamine B; D006861:Hydrogen Peroxide; D007501:Iron