Green Synthesis of Zinc Oxide Nanoparticles (ZnO NPs) and Adsorption with Cibacron Brillant Yellow (CBY) dye

Abstract

In this work, zinc oxide (ZnO) nanoparticles are synthesized by the green synthesis. scanning electron microscopy measurements, X-ray diffraction technique to determine their crystal structure, and FTIR are used to analyze the ZnO nanoparticles. The green synthesis ZnO nanoparticles perform as a good adsorbent for the Cibacron Brillant Yellow (CBY) dye in aqueous solutions. The effects of adsorbent mass, contact time, temperature, and dye concentration of Cibacron Brillant Yellow (CBY) were investigated. The dye isotherm adsorption of Cibacron Brillant Yellow (CBY) exhibited an excellent Compatibility with Freundlich isotherm models The ΔS, ΔH, and ΔG parameters were calculated using a thermodynamic research, yielding 0.01486493 kJ/mol, 63.955422 J/mol K, and -19.3636279 kJ/mol, respectively. The kinetic analysis also revealed that the adsorption was pseudo-first-order.