Isolation of β-Chitosan from Squid Bone as Raw Material to Synthesize of Hybrid Photocatalysts TiO2-Chitosan

Abstract

Synthesis of hybrid photocatalyst of TiO2-chitosan has been done. Chitosan as a raw material was chitosan-β obtained from chitosan isolation from squid bone. Chitosan from squid bone has a soft structure and very little to contain minerals and other impurities so easily obtained. Hybrid photocatalyst TiO2-chitosan was synthesized by a sol-gel method in which the incorporation of chitosan as a supporting material and TiO2 having a function as a photocatalytic agent was dispersed on the β-chitosan surface. The hybrid of TiO2-chitosan photocatalysts was characterized by FTIR and SEM/EDX shows the functional groups and surface morphologies of hybrid photocatalyst TiO2-chitosan covered by uniformly distributed TiO2 nanoparticles. The FTIR spectrum showed the O-Ti-O absorption bands at the wavenumber of 678.98 cm-1 and the typical absorption of chitosan the -OH at the wavenumbers of 3425.58 cm-1, 3834.49 cm-1, and 3873.06 cm-1, respectively.