The removal of organic dye effluents released from numerous dye-utilizing industries is of increasing concern. In this study, the efficiency of wastewater dye adsorption methods was studied by synthesizing and characterizing MoS₂-COOH @ UiO-66-NH₂ composite based on a novel type of transition metal dichalcogenide/metal-organic frameworks (TMD/MOF) prepared using basic materials such as MoS₂, and UiO-66-NH₂. The fabricated MoS₂-COOH @ UiO-66-NH₂ composite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermal stability (TGA), FT-IR spectroscopy, and Energy Dispersive X-ray mapping analysis. In addition, the surface charge of the nanocomposite was probed with Zeta potential (ζ) measurements using the Dynamic Light Scattering (DLS) technique. TMD/MOF composites, as adsorbents, were investigated under various experimental conditions and their equilibrium adsorption capacity towards MB was found to be up to 253$\mathrm{m}\mathrm{g}\mathrm{g}$⁻¹ (when $\mathrm{p}\mathrm{H}$ = 7.0, contact time was 100 min, the adsorbent dose was 6 mg and initial MB concentration was 75 $\mathrm{m}\mathrm{g}\mathrm{L}$ ^− 1 (30 $\mathrm{m}\mathrm{l}$) Using the pseudo-first-order and pseudo-second-order models to study the kinetic behavior of the adsorption process, a better performance of the pseudo-second-order model in describing the kinetic behavior of the MB and MO adsorption process was observed. In addition, MoS₂-COOH @ UiO-66-NH₂ composites could selectively separate methylene blue from a mixture of MB (methylene blue) and MO (methyl orange) with a separation efficiency of 86%.

从众多染料利用行业中释放的有机染料废水的去除越来越受到关注。本研究通过合成和表征基于新型过渡金属二硫属化物/金属有机骨架 (TMD/MOF) 的MoS ₂ -COOH @ UiO-66-NH ₂复合材料来研究废水染料吸附方法的效率。MoS ₂、UiO-66-NH ₂等基本材料。制备的 MoS ₂ -COOH @ UiO-66-NH ₂通过扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、X 射线衍射 (XRD)、热稳定性 (TGA)、FT-IR 光谱和能量色散 X 射线映射分析对复合材料进行了表征。此外，使用动态光散射 (DLS) 技术通过 Zeta 电位 (ζ) 测量探测纳米复合材料的表面电荷。在各种实验条件下研究了作为吸附剂的 TMD/MOF 复合材料，发现它们对 MB 的平衡吸附容量高达 253$\mathrm{米}\mathrm{G}\mathrm{G}$⁻¹（当$\mathrm{磷}\mathrm{H}$ = 7.0，接触时间为 100 分钟，吸附剂剂量为 6 毫克，初始 MB 浓度为 75 $\mathrm{米}\mathrm{G}\mathrm{升}$ ^{− 1} (30$\mathrm{米}\mathrm{升}$)使用拟一级和拟二级模型研究吸附过程的动力学行为，观察到拟二级模型在描述 MB 和 MO 吸附过程的动力学行为方面具有更好的性能. 此外，MoS ₂ -COOH@UiO-66-NH ₂复合材料可以选择性地从MB（亚甲蓝）和MO（甲基橙）的混合物中分离亚甲蓝，分离效率为86%。