Abstarct: In this dissertation, ZIF-67 (Zeolitic imidazolate frxamework) was synthesized and characterized by FT-IR, SEM and XRD analyzes. ZIF-67 was then modified with 3-aminopropyl trimethoxysilane to synthesize NH2-ZIF-67. Synthesized materials ZIF-67 and NH2-ZIF-67 were used to remove Direct Red 23 dye. The effect of adsorbent, solution pH and initial concentration of contaminants on dye removal was studied. The results showed that the modified adsorbent (NH2-ZIF-67) has a higher ability to remove dye than the raw adsorbent (ZIF-67). The amount of dye adsorption is high at lower pH values. The percentage of DR23 dye removal was complete under optimal conditions. Increasing the amount of adsorbent and decreasing the pH increases the percentage of dye removal and increasing the concentration of contaminants reduces the percentage of pollutant removal in the process. Dye removal kinetics were investigated with pseodu-first-order, pseodu-second-order and intraparticle diffiusion models. Dye removal followed pseodu-second-order kinetics. Experimental data were also matched with the Langmuir, Freundlich and Tempkin isotherms. The pollutant removal process follows the Langmuir isotherm. The results showed that NH2-ZIF-67 as a modified adsorbent with high adsorption capacity can be a suitable alternative for dye removal of aqueous solutions.