title: Self-assembled mesoporous γ-Al2O3 spherical nanoparticles and their efficiency for the removal of arsenic from water.
abstract: We report a highly efficient synthetic strategy for self-assembled mesoporous γ-Al(2)O(3) materials using sodium salicylate as template. The mesoporous γ-Al(2)O(3) samples synthesized following this strategy have high surface areas (231-497 m(2)g(-1)), consist of crystalline tiny spherical nanoparticles of dimensions ca. 2-10nm and showed high affinity for the adsorption of arsenic from the contaminated aqueous solutions. Efficient synthesis strategy, exceptionally high surface area and high adsorption efficiency of these mesoporous γ-Al(2)O(3) materials for the dissolved arsenic from the contaminated aqueous solutions (in the form of oxyanions of arsenic) could find potential utility in the purification of polluted water.
authors.affiliation: Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
authors.forename: Astam K
authors.initials: AK
authors.lastname: Patra
authors.forename: Arghya
authors.initials: A
authors.lastname: Dutta
authors.forename: Asim
authors.initials: A
authors.lastname: Bhaumik
mesh_terms: D000327:Adsorption; D000537:Aluminum Oxide / Q000737:chemistry*; D001151:Arsenic / Q000302:isolation & purification*; D060587:Groundwater / Q000032:analysis; D008855:Microscopy, Electron, Scanning; D053758:Nanoparticles / Q000737:chemistry*; D016062:Porosity; D012980:Sodium Salicylate / Q000737:chemistry; D013499:Surface Properties; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction
chemical_list: D014874:Water Pollutants, Chemical; D000537:Aluminum Oxide; D001151:Arsenic; D012980:Sodium Salicylate