title: Cerium(III) molybdate nanoparticles: Synthesis, characterization and radionuclides adsorption studies.
abstract: Cerium(III) molybdate nanostructure with average size about 40nm was prepared by adding cerium(III) chloride and ammonium molybdate solutions under varying conditions. The product was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR), thermogravimetric analysis (TGA) and Brunauere Emmette Teller (BET) techniques. Ion exchange capacity of the sample for potassium ion and distribution coefficients (K(d)) for 23 metal ions were determined, the K(d) values for Tl(I), Pb(II), Th(IV), U(VI), and Cs(I) ions were found to be sufficiently high for their removal from various effluents. The adsorption behavior of the sample towards Cs(I)(134) species were studied. Finally, the binary separation of Dy(III)-U(VI), Sm(III)-Th(IV) and Cs(I)-Rb(I) and removal of Cs(I)(134) from the real sample were successfully achieved.
authors.affiliation: NFCRS, Nuclear Science and Technology Institute, Kargher Ave, Tehran, Iran. Taher_yosefy@yahoo.com
authors.forename: Taher
authors.initials: T
authors.lastname: Yousefi
authors.forename: Ali Reza
authors.initials: AR
authors.lastname: Khanchi
authors.forename: Seyed Javad
authors.initials: SJ
authors.lastname: Ahmadi
authors.forename: Mohamad Kazem
authors.initials: MK
authors.lastname: Rofouei
authors.forename: Ramin
authors.initials: R
authors.lastname: Yavari
authors.forename: Reza
authors.initials: R
authors.lastname: Davarkhah
authors.forename: Behzad
authors.initials: B
authors.lastname: Myanji
mesh_terms: D000327:Adsorption; D002563:Cerium / Q000737:chemistry*; D004785:Environmental Pollutants / Q000737:chemistry*; D007474:Ion Exchange; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008670:Metals / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008982:Molybdenum / Q000737:chemistry*; D011850:Radioactive Waste; D011868:Radioisotopes / Q000737:chemistry*; D018505:Waste Management / Q000379:methods
chemical_list: D004785:Environmental Pollutants; D008670:Metals; D011850:Radioactive Waste; D011868:Radioisotopes; C044659:molybdate; D002563:Cerium; D008982:Molybdenum