Photocatalytic activity of nano-clinoptilolite particles containing NiO semiconductor in the photodegradation of a cephalexin real sample

NiO was incorporated into nano particles of clinoptiloite by ion exchanging the zeolite in a nickel nitrate aqueous solution followed by calcinations process. All raw and modified samples were characterized by XRD, FT-IR, DRS, SEM, and TEM. The prepared catalyst was used in the photocatalytic degradation ofcephalexin (CEX) and the best experimental parameters were obtained as: 0.2 g L-1 of the catalyst, 50 times diluted of the initial cephalexin solution and pH = 4.5. The degradation extent was monitored by UV-Vis spectroscopy and the results were confirmed by HPLC and the chemical oxygen demand (COD).

کلیدواژه ها:

NiO ، Nano-clinoptilolite ، Photodegradation ، Heterogeneous catalysis