EFFECT OF OPERATIONAL PARAMETERS ON DEGRADATION OF JANUS GREEN B FROM AQUEOUS SOLUTION USING ZnO/ZHC/AC COMPOSITE

Abstract

This paper reports the synthesis of zinc oxide and zinc hydroxide carbonate
loaded on activated carbon (ZnO/ZHC/AC composite) for degradation of Janus
Green B (JGB). The ZnO/ZHC/AC sample was prepared by hydrothermal method
with the presence of hexamethylene tetramine (HMTA) at the pH = 8.0 without
calcination process. As-prepared sample was characterized by XRD, FE-SEM, BET
and N2 adsorption/desorption isotherms. In particularly, the effects of
operational parameters such as dosage catalyst, initial dye concentration, initial
pH and light irradiation were investigated in detail. In addition, the
photodegradation rate of JGB on the catalyst was also evaluated by using the
pseudo-first-order model.