چكيده به لاتين
In this work, CA/MOF-derived Porous Carbon (CA/MDPC) adsorptive ultrafiltration membranes were synthesized. These efficient biodegradable membranes were fabricated and their performance for the removal of a cationic dye, methylene blue (MB), was investigated. The membrane’s physical and chemical properties were characterized by FTIR, Contact angle, SEM, AFM and TGA analysis. The performance of the membranes was studied via batch and continuous experiments. The influence of various parameters such as PEG loading, NPs loading, contact time, pH and initial dye concentration on the dye removal capability of the membranes was investigated. It is found that the optimum performance parameters (rejection of 98.2% and permeance of 76.03 l/m2.h.bar) were obtained for membrane containing 2wt.% of MOF-derived Porous Carbon nanoparticles. The optimum sample was used to study the adsorption mechanism via isotherms and kinetics models. Finally, membrane reusability was studied via subsequent adsorption-regeneration cycles. The obtained results demonstrated that MB removal efficiency of optimal adsorptive membrane reduced from 98.2% to 87.9% after 5 cycles. As a result, the CA/MDPC adsorptive ultrafiltration membranes can be potentially utilized for dye removal applications.
