TEKSTİL BOYAR MADDESİNİN METAL MODİFİYELİ KİTOSAN BİLYELER KULLANILARAK FOTOKATALİTİK OKSİDASYON PROSESİ İLE ARITIMI

In this study, cobalt, iron (II), iron (III) and copper metals were determined to be loaded into the chitosan biopolymer obtained from chitin produced by biosynthesis in nature to be used as a catalyst in the photocatalytic oxidation process to remove the dyestuff, and peroxymonosulfate (PMS) was selected as the oxidant. After the determined metals were loaded into the prepared chitosan beads, the photocatalytic process was studied with the solutions prepared at 20 mg/L concentration using direct orange 46 dye, catalysts loaded with four different metals and PMS, and the removal data measured with a spectrophotometer were recorded. In the light of these studies, since it was observed that cobalt-loaded chitosan beads accelerated the reactions and gave very good results, studies were continued with these catalysts at 50 and 100 mg/L concentrations. Studies were also carried out to optimize the amount of catalyst and PMS, to observe the efficiency whether light was used in the process or not, and to compare the effect of UVA or UVA LED lights when light was required. Finally, the same processes were applied to real wastewater of a textile company, using cobalt-loaded chitosan beads as catalysts. As a result, it was observed that high efficiency was achieved by using cobalt-loaded chitosan beads as catalysts in the photocatalytic process.