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Cation and Anion Retention by Natural and Synthetic Allophane and Imogolite
Adsorption Allophane Anion retention Cation retention Imogolite SiO2/Al2O3 ratio Surface charge
2012/2/6
The negative surface charge of synthetic allophanes with a range of Si/Al ratios decreased and positive charge increased with increasing alumina content at a given pH. The phosphate adsorption capacit...