The porous La(III)- montmorillonite hydrogel beads (La-MMT_hb) with stable structure were fabricated via hydrogen-bond and electrostatic interactions for arsenic removal from water. The structural characteristics of La-MMT_hb and its sorption performances for As(V) were evaluated. The results showed that porous La-MMT_hb were clearly observed by scanning electron microscopy, and the addition of lanthanum significantly increased the specific surface area. The maximum adsorption capacity of La-MMT_hb for As(V) was 58.75 mg/g, reached within 4 h, at the optimum pH of 4 with optimum La dosage of 1%. The mechanism of adsorption can be attributed to the electrostatic forces between La(III) and H₂AsO₄⁻ at pH 4, ion exchange of OH groups on the surface of adsorbent with H₂AsO₄⁻ and complex chelate formation as.-NH₃-H₂AsO₄ and -La-O-As.

通过氢键和静电作用制备了具有稳定结构的多孔La（III）-蒙脱土水凝胶珠（La-MMT_hb），以去除水中的砷。评价了La-MMT_hb的结构特征及其对As（V）的吸附性能。结果显示，通过扫描电子显微镜清楚地观察到多孔La-MMT_hb，并且镧的添加显着增加了比表面积。La-MMT_hb对As（V）的最大吸附容量为58.75 mg / g，在4的最佳pH和1％的最佳La剂量下，在4小时内达到最大吸附容量。吸附的机理可以在La（III）和H之间归因于静电力₂ ASO ₄ ^-在pH 4，O的离子交换吸附剂具有H的表面上H基₂ ASO ₄ ^-和复杂的螯合形成as.-NH ₃ -H ₂ ASO ₄和-La-O-为。