title: Zinc oxide nano-particles--sonochemical synthesis, characterization and application for photo-remediation of heavy metal.
abstract: Zinc oxide nanoparticles have been synthesized sonochemically from zinc acetate solution in aqueous methanol, ethanol and iso-propanol containing about 5 volume% of alcohol. Characterization with FESEM, XRD, AFM and BET surface area shows that the synthesized particles differ in shape and size. ZnO synthesized using isopropanol was observed to be the most crystalline one. The synthesized nanoparticles were used for the photocatalytic reduction of hexavalent chromium in aqueous medium under solar radiation. It was observed that the initial reduction rates varied with the difference in morphology of ZnO crystallites.
authors.affiliation: Department of Chemical Engineering, University of Calcutta, 92, Acharya P.C. Road, Kolkata 700 009, India. prantik.banerjee85@gmail.com
authors.forename: Prantik
authors.initials: P
authors.lastname: Banerjee
authors.forename: Sampa
authors.initials: S
authors.lastname: Chakrabarti
authors.forename: Saikat
authors.initials: S
authors.lastname: Maitra
authors.forename: Binay K
authors.initials: BK
authors.lastname: Dutta
mesh_terms: D000327:Adsorption; D002384:Catalysis; D002857:Chromium / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D010084:Oxidation-Reduction; D010316:Particle Size; D010777:Photochemistry; D013010:Sonication; D013499:Surface Properties; D014867:Water / Q000737:chemistry; D015034:Zinc Oxide / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D014867:Water; D002857:Chromium; D015034:Zinc Oxide