通过原位生长的方法成功制备了腐殖酸(HA)复合UiO-66的纳米材料(HA@UiO-66),通过SEM、XRD、FT-IR、Zeta电位对其进行表征。将HA@UiO-66用于阳离子染料亚甲基蓝(MB⁺)和阴离子染料甲基橙(MO^-)的吸附处理,结果表明,MB⁺和MO^-在HA@UiO-66上的吸附过程符合伪二级动力学和Langmuir等温吸附模型;HA@UiO-66对MB⁺和MO^-的吸附容量都大幅度提高,最大平衡吸附量分别为123.3 mg/g和49.6 mg/g,并且表现出对阳离子染料MB⁺的优先吸附。

Humic acid composited UiO-66 (HA@UiO-66) material is successfully prepared via in-situ growth method,and characterized by means of SEM,XRD,FTIR,and zeta potential.The prepared HA@UiO-66 is used for the adsorption treatment of methylene blue (MB⁺),a cationic dye and methyl orange (MO^-),an anionic dye.Experimental data show that the adsorption of MB⁺ and MO^- by HA@UiO-66 accords with the pseudo-second-order kinetics and Langmuir isotherm adsorption model.The adsorption capacity of HA@UiO-66 for both MB⁺ and MO^- is substantially increased,with the maximum equilibrium adsorption capacities of 123.3 mg·g^-1 and 49.6 mg·g^-1,respectively,showing preferential adsorption for MB⁺ to for MO^-.