发现通过热分解Mg-Al层状双氢氧化物（Mg-Al LDH）获得的镁-铝氧化物（Mg-Al氧化物）被去除 锑（哦）6--（Sb（V））由于复水而在溶液中，并与Sb（V）结合形成类勃兰石的结构。尽管随着Mg-Al氧化物含量的增加，Sb的浓度降低，但是Mg / Al摩尔比的差异对该关系影响很小。高电荷密度的共存阴离子可部分防止Mg–Al氧化物去除溶液中的Sb（V）（所以42-- 和 一氧化碳32--）。在这种情况下，Mg-Al氧化物可能会再水化，并与溶液中的Sb（V）竞争性结合以构建类硼锌矿结构或与阴离子重构LDH结构。然而，在具有低电荷密度（CL共存阴离子的情况下-和OH - ），镁-铝氧化物可能再水合和优先结合的Sb（V）在溶液中以构建brandholzite状结构。氯高浓度的-和所以42-- 对Sb浓度的降低影响很小，而高浓度的 一氧化碳32-- 产生了很大的影响。

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Magnesium–aluminum oxide (Mg–Al oxide), obtained by thermal decomposition of a Mg–Al layered double hydroxide (Mg–Al LDH), was found to remove Sb(OH)6- (Sb(V)) in solution because of rehydration, and to combine with Sb(V) to form a brandholzite-like structure. Although the Sb concentration decreased with increasing amounts of Mg–Al oxide, differences in the Mg/Al molar ratio had little effect on this relationship. The removal of Sb(V) in solution by Mg–Al oxide was partially prevented by coexistent anions with high charge densities (SO42- and CO32-). In this case, Mg–Al oxide likely rehydrates and competitively combines with Sb(V) in solution to construct a brandholzite-like structure or with anions to reconstruct the LDH structure. However, in the case of coexistent anions with low charge densities (Cl− and OH−), Mg–Al oxide likely rehydrates and preferentially combines with Sb(V) in solution to construct the brandholzite-like structure. A high concentration of Cl− and SO42- had little effect on the decrease in Sb concentration, whereas a high concentration of CO32- had a large effect.