Ion-exchange properties of niobium(V) materials. II. Synthesis and characterization of crystalline niobium(V) phosphate.

スポンサーリンク

概要

• 論文の詳細を見る

• An attempt has been made to synthesize and characterize the crystalline niobium(V) phosphate. The characterization was done on the basis of pH titration, X-ray, XPS, TGA, DSC, and IR studies. It is an ion exchange material which shows about 20% higher chemical stability over the amorphous niobium(V) phosphate. It was found to have a pseudocubical unit cell structure with <I>a</I><SUB>0</SUB>(H)=10.244 Å and a stiff three dimensional zeolytic structure. The empirical formula of the compound was obtained as Nb<SUB>2</SUB>O<SUB>5</SUB>·1.5 P<SUB>2</SUB>O<SUB>5</SUB>·7.5 H<SUB>2</SUB>O. The proposed chemical formula is (NbO)<SUB>2</SUB>(HPO<SUB>4</SUB>)<SUB>3</SUB>·6H<SUB>2</SUB>O (<I>d</I><SUB>110</SUB>=7.23 Å). The exchanger is monofunctional in nature having the maximum exchange capacity of 4.6 meq g<SUP>−1</SUP> for potassium ion at pH 8.5

• 公益社団法人 日本化学会の論文

著者

• Gupta Jai

  Chemistry Section, Z. H. College of Engg. and Technology, Aligarh Muslim University

• Ahmad Anees

  Analytical Laboratory, Chemistry Department, A.M.U.

• Qureshi Mohsin

  Chemical Laboratories, Z. H. College of Engg. and Tech., Aligarh Muslim University

• Khan Hina

  Chemistry Section, Z. H. College of Engg. and Technology, Aligarh Muslim University

関連論文

• Synthesis, dehydration studies, and cation-exchange behavior of a new phase of niobium(V) phosphate.
• Ion-exchange properties of niobium(V) materials. II. Synthesis and characterization of crystalline niobium(V) phosphate.

スポンサーリンク