水解聚合铝溶液中Al30形态的研究*

水解聚合铝形态一直是分析、催化、土壤、地球化学、新材料、环境科学和生物毒理学等众多领域研究的前沿和热点。Keggin 结构的Al₃₀ 形态是迄今为止发现的电荷最高的水解铝聚合阳离子,具有独特的分子结构和纳米分子尺寸,它对催化化学、新型功能材料、高效絮凝剂的开发以及铝的水解聚合转化规律研究具有重要意义。本文主要论述了Al₃₀形态的形成、形态分析方法、结构模型以及形成机理等方面的最新研究进展,并对水解聚合铝溶液的研究发展趋势进行了展望。

Progress in the Species of Al30 in Hydrolytic Polymeric Aluminum Solutions

The species distribution in hydrolytic polymeric aluminum solutions is a research focus in the fields of analysis, catalysis, agrology, geochemistry, new materials, environmental science, biotoxicology, etc. The species of Al30 with a structure of Keggin is the biggest polycation ever characterized and is the highest charged polycation discovered so far in hydrolytic polymeric aluminum solutions. It is unique by its molecular structure and size. The molecular size is in the range of nanometer, which is significant for catalytic chemistry, the development of new functional materials and higheffective coagulants and the study of hydrolysis, polymerization and transformation of aluminum salts. The advances in the formation, species analytic methods, molecular structure mode and formation mechanism of Al30 were reviewed in this paper, and the further research trends of hydrolytic polymeric aluminum solutions were reviewed.