title: Synthesis, characterization and analytical application of a new inorganic cation exchanger-Titanium(IV) molybdophosphate.
abstract: A novel polyoxometalate-cation exchanger, titanium(IV) molybdophosphate (TMP) has been synthesized under varying conditions. The material was characterized by X-ray diffraction, infrared spectroscopy, inductively coupled plasma and thermogravimetry techniques. Its stability was investigated in water, dilute acids, alkaline solutions, and high temperature up to 750 degrees C. Ion-exchange capacity and distribution coefficients (K(d)) for twenty-nine radionuclides and metal ions have been determined. It was found that the TMP has high affinity for Cs(+), Sr(2+), UO(2)(2+), Ba(2+), Pb(2+), Tl(+), Zn(2+), Rb(2+) and Zr(4+) ions. The results of binary separation of metal ions showed that TMP can be potentially useful for analytical applications.
authors.affiliation: Nuclear Science and Technology Research Institute, Tehran, Iran. yavariramin@yahoo.com
authors.forename: R
authors.initials: R
authors.lastname: Yavari
authors.forename: S J
authors.initials: SJ
authors.lastname: Ahmadi
authors.forename: Y D
authors.initials: YD
authors.lastname: Huang
authors.forename: A R
authors.initials: AR
authors.lastname: Khanchi
authors.forename: G
authors.initials: G
authors.lastname: Bagheri
authors.forename: J M
authors.initials: JM
authors.lastname: He