关键字：extraction/insertion reaction; inverse spinel-type metal oxides; ion-exchange mechanism; Mg2Mn0.5.Ti0.5O4

摘要：An inverse spinet-type metal oxide, magnesium-manganese-titanium oxide (Mg2Mn0.5Ti0.5O4), were prepared using the coprecipitation/thermal crystallization method. The extraction/insertion reaction with this material was investigated by X-ray, saturation capacity of exchange, pH titration, and distribution coefficient (K-d) measurement. The acid treatments of Mg2Mn0.5Ti0.5O4 caused Mg2+ extractions of more than 81%, whereas the dissolutions of Mn4+ and Ti4+ were less than 10%. The experimental results proved that the acid-treated sample has a capacity of exchange 56 mg center dot g(-1) for Li+ in the solution. The chemical analysis showed that the Li+ extraction/insertion progressed mainly by ion-exchange mechanism and surface adsorption.

卷号：26

期号：6

是否译文：否