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硼磷酸盐是一类包含硼氧基团(BO4、BO3)和磷氧基团(PO4)的新化合物,目前所报道的硼磷酸盐几乎都在高温高压条件下合成。近几年离子法用于硼磷酸盐的合成逐渐受到关注。基于离子液体的特点,尝试了常压低温下硼磷酸盐的合成,并成功地应用于以离子液体[Emim]Br为溶剂,常压、80～100℃条件下合成纳米硼磷酸盐Zn(H2O)2[BP2O8]·H2O。产物通过X–射线粉末衍射进行了物相表征,并用扫描电镜(SEM)观察其形貌。结果表明,Zn(H2O)2[BP2O8]·H2O可在80℃下,40min内快速形成,通过改变反应时间、温度和陈化时间,研究了其对硼磷酸盐纳米晶体形成及形貌的影响。
Boron phosphates are a new class of compounds that contain boroxyl groups (BO4, BO3) and phosphorous oxygens (PO4). The reported borophosphates are almost synthesized under high temperature and pressure conditions. In recent years, the ion method for the synthesis of boron phosphate gradually attention. Based on the characteristics of ionic liquids, the synthesis of borophosphate under atmospheric pressure and low temperature was tried and successfully applied to the synthesis of borophosphate Zn (H 2 O) with ionic liquid [Emim] Br as solvent at atmospheric pressure at 80 ~ 100 ℃ ) 2 [BP2O8] H2O. The product was characterized by X-ray powder diffraction and its morphology was observed by scanning electron microscopy (SEM). The results show that Zn (H2O) 2 [BP2O8] .H2O can be rapidly formed in 40 min at 80 ℃. The influence of reaction time, temperature and aging time on the formation and morphology of borophosphate nanocrystals was studied .