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采用水溶液合成法制备了具有Keggin型结构的十一镍锆钼杂多酸盐Na6[Ni(Mo11ZrO39)].20H2O(NiZrMo),并对其进行表征及分析.元素分析表明,镍锆钼之间的物质的量之比满足1∶1∶11的关系;热重/差热分析说明合成的杂多酸盐具有比较好的热稳定性并带有20个结晶水;红外光谱、X射线衍射及紫外光谱表征充分表明合成的杂多酸盐其阴离子仍保持Keggin型结构;扫描电镜分析表明,具有比较好的大分子化合物的基本特征和比较规则的晶体结构.以NiZrMo杂多酸盐为催化剂降解酸性绿B(AGB)染料废水,降解率最高可达95.72%.
An aqueous solution synthesis method was used to prepare Na6 [Ni (Mo11ZrO39)] 20H2O (NiZrMo) with the Keggin-type structure and characterized and analyzed. Elemental analysis showed that between nickel, molybdenum and zirconium Of the ratio of the amount of material to meet the relationship of 1: 1: 11; TG / DTA shows that the synthesis of heteropoly acid salt with good thermal stability and with 20 crystal water; infrared spectroscopy, X-ray diffraction and UV spectrum characterization fully shows that the anions of the synthesized heteropolyacid salts still maintain the Keggin structure. Scanning electron microscopy analysis shows that the basic characteristics of the macromolecular compounds and the regular crystal structure are better. NiZrMo heteropolyacid salts are used as catalysts Acid green B (AGB) dye wastewater, the highest rate of 95.72% degradation.