Due to the increasing environmental pollution from the textile industry, synthesizing efficient adsorbents to remove coloring agents from waste streams is of practical interest and importance to chemists and material scientists. Metal-organic framework (MOF) and covalent organic framework (COF) are multidimensional, porous, and crystalline. Owing to their high BET surface area, they are both right choices for dye adsorption. A superior feature of COF materials compared to MOFs is their stability in organic solvents and acidic environments. Herein, considering the importance of the complete removal of acid blue 9 and economic aspects, a new hybrid of aminated chromium-based MOF and triazine-based COF (MIL-101-NH₂@COF) was synthesized and used for the removal of the dye from textile wastewater. These materials were characterized by FT-IR spectra, PXRD, elemental analysis, and BET. Since the hybrid adsorbent had a mesoporous structure of a large surface area for nitrogen adsorption, it would be the right candidate for solving the coloring agent pollution problem. Some essential parameters, such as pH, contact time, temperature, and adsorbent dosage, were optimized. The optimum condition was pH = 2, absorbent dosage 0.01 g, contact time 90 min, and temperature 35 °C. The obtained maximum adsorption capacity was 256 mg g⁻¹. The experimental results, in general, agree with those of the Langmuir model and the pseudo-second-order kinetics, suggesting that acid blue 9 was adsorbed to the hybrid adsorbent in monolayers due to its chemical affinity.

由于纺织工业对环境的污染日益严重，合成有效的吸附剂以从废料流中去除着色剂对化学家和材料科学家具有实际意义和重要性。金属有机骨架（MOF）和共价有机骨架（COF）是多维的，多孔的和结晶的。由于它们的高BET表面积，它们都是染料吸附的正确选择。与MOF相比，COF材料的优越之处在于它们在有机溶剂和酸性环境中的稳定性。在此，考虑到完全去除酸蓝9的重要性和经济方面的考虑，胺化铬基MOF和三嗪基COF的新混合物（MIL-101-NH ₂（COF）被合成并用于从纺织废水中去除染料。这些材料通过FT-IR光谱，PXRD，元素分析和BET进行表征。由于杂化吸附剂具有大面积的氮吸附介孔结构，因此它是解决着色剂污染问题的正确选择。优化了一些基本参数，例如pH，接触时间，温度和吸附剂用量。最佳条件为pH = 2，吸收剂量为0.01 g，接触时间为90分钟，温度为35°C。获得的最大吸附容量为256 mg g ^-1。通常，实验结果与Langmuir模型的结果和拟二级动力学吻合，这表明酸性蓝9由于其化学亲和力而被吸附在单层杂化吸附剂中。