Structural Consideration of Zirconium Phosphate and its Organic Complexes

Yamanaka, Shōji; Koizumi, M.

doi:10.1346/ccmn.1975.0230613

Cited by 36 publications

(4 citation statements)

References 13 publications

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“…The proposed structure has a greater interlayer spacing than that of -ZrP allowing adsorption of more kinds of organic molecules. 14 In the present study, the phosphate groups of the interlamellar surfaces of a-and 7-ZrP have been esterified through reaction with ethylene oxide.…”

Section: Introductionmentioning

confidence: 97%

Synthesis and characterization of the organic derivatives of zirconium phosphate

Yamanaka¹

1976

Inorg. Chem.

112

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Section: Introductionmentioning

confidence: 97%

Synthesis and characterization of the organic derivatives of zirconium phosphate

Yamanaka¹

1976

Inorg. Chem.

112

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“…a-Zirconium phosphate is a layered compound, with chemical properties similar to those of the smectite clays. 6 This material, and its transition-metal exchanged forms, was recently shown ' to be catalytically active. The small intracrystalline pore sizes of a-zirconium phosphates restrict access to the interlayer region for most reagents.…”

mentioning

confidence: 99%

Formation of chromium interlayers in α-zirconium phosphate

MacLachlan¹,

Bibby²

1989

J. Chem. Soc., Dalton Trans.

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lnterlayered materials with basal spacings 15-26 A, obtained when the half-sodium-exchanged form of x-zirconium bis( hydrogenphosphate) is refluxed with solutions of chromium(iii) acetate, have been studied by thermal analysis, X-ray powder diffraction, electron microscopy, e.s.r. and i.r. spectroscopy; surface areas were also determined. The reaction causes expansion of the interlayer spacing, to a degree depending o n the initial chromium content of the solution and the temperature.The results are interpreted in terms of the formation of a hydrous chromium acetate interlayer species which decomposes on heating between 300 and 400 "C. The surface area of the azirconium phosphate does not change appreciably o n reaction with chromium(iii) acetate indicating that interlayer crowding effects play a dominant role.

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“…2. 23 The zirconium phosphate layer is also composed of two phosphate (PO 4 ) tetrahedral (2 T) sheets and one zirconia (ZrO 2 ) octahedral (O) sheet. The ZrO 6 octahedra are arranged in a hexagonal sheet, and PO 4 tetrahedral units are linked with the ZrO 6 octahedra from both the sides of the sheet.…”

Section: Structural Relationship Between Montmorillonite and Zirconiu...mentioning

confidence: 99%

Ship-in-bottle synthesis of the mixed-layered compounds of clay silicate/zirconium phosphate

et al. 2014

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An attempt was made to synthesize artificial mixed-layered compounds between montmorillonite silicate and α-zirconium phosphate using a ship-in-bottle approach. The interlayer cations of montmorillonite were first exchanged with hydroxy-zirconium oligomeric cations, which were then subjected to a reaction with phosphoric acid or phenylphosphoric acid to develop α-zirconium phosphate layers (Zr(R-OPO3)2; R = H, C6H5) between the clay silicate layers. The attempt of the reaction with phosphoric acid failed; hydroxy-zirconium cations were removed out of the interlayer space, forming α-zirconium phosphate outside of montmorillonite. The phenylphosphate derivative, montmorillonite/Zr(C6H5OPO3)2, with a regular mixed-layered structure has been successfully obtained, showing a basal spacing corresponding to the sum of the thicknesses of the individual layers. When a polyvinyl alcohol (PVA) aqueous solution was used in the preparation of the hydroxy-zirconium exchanged montmorillonite, PVA was incorporated with hydroxy-zirconium complex cations between the silicate layers. The resulting compound can adsorb phosphate ions. Although this is not a mixed-layered compound in the context of this study, the selective and reversible phosphate ion exchange properties are worth noting for future study.

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Structural Consideration of Zirconium Phosphate and its Organic Complexes

Cited by 36 publications

References 13 publications

Synthesis and characterization of the organic derivatives of zirconium phosphate

Synthesis and characterization of the organic derivatives of zirconium phosphate

Formation of chromium interlayers in α-zirconium phosphate

Ship-in-bottle synthesis of the mixed-layered compounds of clay silicate/zirconium phosphate

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