Photocatalytic removal of cu (Ii) in an aquatic solution using tio2-chitosan nanocomposites

Photocatalytic removal of Cu(II) in aquatic solutions using TiO2-chitosan nanocomposite had been studied. The photocatalytic process was carried out using a batch system in a closed reactor equipped with a UV lamp. The results show that the percentage of photocatalytic removal of Cu(II) by TiO2 – chitosan nanocomposite was higher than that of TiO2 bulk catalyzing. Under solution containing 20 mg/L of Cu(II), pH 7, three hours of contact time, and employing 20 mg TiO2chitosan nanocomposite, the Cu(II) removal was successfully done up to 94.55. The maximum adsorption capacity was obtained under nanocomposite with the highest amount of chitosan(TiO2-chit 0.13). The highest kinetic constant was obtained with nanocomposite containing the highest amount of TiO2 (TiO2-chit 1.3). The method offers high reusability up to three times, with a percentage of more than 50 of Cu(II) removal. © 2020, Universitas Jenderal Soedirman. All rights reserved.