The effect of Acetic Acid Ratio in the Electrodeposition Process of Chitosan/ZnO

Abstract

Chitosan is a material that sensitive to the environmental changes and has been used in the developing of sensor. The fabrication of chitosan/ZnO composite was prepared using the electrodeposition method over PCB plate. ZnO content was variated to be 10, 20 and 30 wt.% also the composite was prepared in acetic acid 2 and 5%. The aim of the present study is to evaluate the preparation process of chitosan/ZnO composite with acetic acid concentration as the independent variable in this research. The XRD data showed a peak at 2θ; 30.8 that confirmed the presence of ZnO in the composite. The FTIR spectra showed the presence of ZnO can be found at 550 cm-1 and the acetic acid concentration influenced the intensities of the composites. The surface morphology of composite that prepared using acetic acid 2% has a smoother surface than the composite that prepared using acetic acid 5%. The voltage response of chitosan/ZnO composite that prepared using acetic acid 5% showed the highest value (0,1525 V) than the composite that prepared using acetic acid 2% (0,0581 V).