Transformation of planar Mögel Al13 to epsilon Keggin Al13 in dissolution process

Hydrolyzed Al(III)-clusters. II: Speciation transformation and stability of Al13 aggregates

“…They are also of interest in several other fields such as catalysis, pharmaceuticals and paper industry [6,7]. However, due to the quite complicated nature of Al(III) hydrolysis, the full possibilities and properties of Al 13 -nanoflocculant remain to be exploited.…”

“…A large amount of investigation and practical application shows that the AlO 4 Al 12 (OH) 24 7+ (simplified as Al 13 ) is the most efficient species in PACl coagulant [9,10]. The content of Al 13 is therefore the main quality index in PACl products besides the basicity B, i.e.…”

“…Among the IPFs, polyaluminum chloride (PACl) is the most efficient, widely applied coagulant and has a mature production technology. PACl containing high content of Al 13 -nanoflocculant (containing more than 70% Al 13 ) and methods to prepare pure Al 13 have become recently the target in the research of nano-IPFs [4,5]. They are also of interest in several other fields such as catalysis, pharmaceuticals and paper industry [6,7].…”

“…The objective of this study is to investigate the role of Al 13 and its aggregates during coagulation with emphasis on the effect of particle size. A previous paper discussed in detail the stability of pure Al 13 [3].…”

“…In some cases, it remains a minor component in the products [2]. The preparation of PACl with high content Al 13 -nanoflocculant (containing more than 70% Al 13 ) has become recently the target in the research of IPFs.…”