关键词:

固相反应, 手性磷酸锌钠, 多孔材料, 结构调控

Abstract:

A novel method for the synthesis of functional material, chiral sodium zincophosphate was studied, and the target product was obtained successfully with Na₃PO₄·12H₂O and inorganic Zn salts as raw materials and PEG-400 as surfactant via a one step low heat solid state reaction.The influence of different kinds of Zn salts, P sources, and pH of the reaction mixture on the formation of the products was investigated.Experimental results indicated that the pH of the mixture was an important factor for regulation of the product structures.Different kinds of Zn salts did not affect the product structure, but different kinds of P sources affected the product structure through regulating pH.The influence of pH on the formation of the products was that when pH of the reaction mixture was about 11, 7～9, about 5, about 3, the products were correspondingly (1) mixture of chiral NaZnPO₄·H₂O (P6₁22) and achiral NaZnPO₄ (OH)［P21/c(14)］, (2) chiral NaZnPO₄·H₂O (P6₁22), (3) achiral NaH (ZnPO₄)₂, (4) achiral Zn₃ (PO₄)₂·4H₂O.The reaction conditions for the synthesis of chiral NaZnPO₄·H₂O (P6₁22) were: Na₃PO₄·12H₂O and inorganic Zn salts as raw materials, PEG-400 as surfactant, pH=7～9, P/Zn=1.18（mol） and the reaction mixture was aged at 50℃ for 6 h.

Key words:

固相反应, 手性磷酸锌钠, 多孔材料, 结构调控