A bimetallic (Copper/cobalt) embedded poly (acrylamide) hydrogel for the synergistic catalytic degradation of methylene blue dye

Abstract

Herein, the synergistic catalytic degradation efficiency of polyacrylamide hydrogel embedded with copper and cobalt ions was studied over methylene blue (MB) dye. The morphology of the bimetallic hydrogel was analyzed by FTIR, SEM, and EDX. Fourier transform infrared spectroscopy (FTIR) was used to investigate the chemical composition. To explore the efficiency of CuCo@PAM catalyst for the MB dye degradation, all critical parameters such as mass, dye concentration, H 2 O 2 , temperature, and pH were studied and optimized. The maximum MB oxidative catalytic efficiency, under optimal conditions, for bimetallic hydrogel (CuCo@PAM) was found to be 97% which was 23% more than Cu@ PAM and 17.9% more than Co@PAM, for hydrogel with copper was 74% and hydrogel with cobalt was 79.1%. Therefore, this signifies the synergistic catalytic degradation characteristics exhibited by the bimetallic hydrogel (CuCo@PAM). Based on the experimental results, the regression analysis was conducted for the catalytic degradation of MB dye process. The stability and reusability catalyst was achieved up to three consecutive cycles.