Synthesis and Characterization of the Layered Zirconium Arsenate Zr2O3(HAsO4)·nH2O

摘要: Abstract Layered sodium zirconium arsenate of composition Zr 2 O 3 (NaAsO 4 )·3H was prepared by the reaction between Zr(OC H 7 ) and in alkaline media (pH > 12) under mild hydrothermal conditions (180–200°C). Two hydrogen forms (ψ-ZrAs) (HAsO )·H O, were acid treatment form. The intercalation n -alkylamines into ψ-ZrAs from gas phase studied. synthesized materials characterized elemental analysis, thermogravimetric infrared spectroscopy powder X-ray diffraction. data indicate that is isostructural to ψ-Zr (HPO )·nH (n = 0.5, 1.5). new compounds exhibit high hydrolytic stability media. ion exchange behavior towards alkali, alkaline-earth, some di- tri-valent metal cations different solutions studied over a wide pH range (2–14) batch technique.