수용액법에 의한 인산 지르코늄 나노입자의 합성
Fabrication of Zirconium Phosphate Nanoparticles through Solution Technique
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Abstract
The a-zirconium phosphate particles as fine as 20 nm were fabricated through solution technique using ZrOCl2 8H2O and H3PO4 as precursors. Stability of α-Zirconium phosphate could be ensured by adding excess phosphoric acid to a stoichiometric composition instead of using reflux route that resulted in coarsening of particles due to an inevitably long aging. The excess phosphorous incorporated in the crystal could be successfully eliminated afterwards through careful washing. Moreover, heavily agglomerated particles are observed before washing, but fairly dispersed state is found out after washing treatment. Thus, it is found that dispersed state as well as phase stability is ensured through proper washing treatment.