title: Synthesis of Iron Oxide Micro and Nanoparticles from Aluminum Industry Waste and Its Application in the Decolorization of Reactive Blue 235 Dye.
abstract: Iron oxide micro and nanoparticles were successfully synthesized from Red Mud (RM) using a simple twostep process. RM was characterized using various techniques such as X-Ray Diffractometer (XRD), Fourier Transform- Infra Red (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) analysis and Carbon Hydrogen Nitrogen (CHN) microanalysis. Red mud derived iron oxide micro and nanoparticles (RIMNP) were characterized using techniques such as XRD, FTIR, SEM/EDX, Transmission Electron Microscopy (TEM) and Vibrating Sample Magnetometry (VSM). RIMNP were employed as a Fenton like catalyst for the decolorization of a commonly used textile dye Reactive Blue 235 (RB235) from aqueous solution. The dynamical data obtained at different concentrations of RIMNP fit well with pseudo-second-order kinetic model and 100% dye removal efficiency was obtained at 200 mg L-1 concentration of RIMNP.
authors.affiliation: Department of Chemical Engineering, A.C. College of Technology, Anna University, P.O. Box: 600025, Chennai, Tamil Nadu, India. elavarasijawahar@gmail.com.
authors.forename: Elavarasi
authors.initials: E
authors.lastname: Natarajan
authors.forename: Gomathi P
authors.initials: GP
authors.lastname: Ponnaiah
mesh_terms: D000535:Aluminum; D001391:Azo Compounds / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D005290:Ferric Compounds / Q000737:chemistry*; D007220:Industrial Waste; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D001391:Azo Compounds; D005290:Ferric Compounds; D007220:Industrial Waste; C000499:ferric oxide; D000535:Aluminum