Adsorption and Photocatalytic Degradation of Pharmaceutical Amoxicillin using TiO2 Nanoparticles in Aqueous Solutions: Oxidative Coupling as Spectrophotometric Method

Abstract

           Determination of Amoxicillin(AMX) drug using the oxidative coupling reaction of 4-amino antipyrine (4AAP) in the found  of K₃[Fe(CN)₃] in the basic medium to give a red-colored chromophore that estimated spectrophotmetrically at 508 nm. at 25^oC.The good reagent concentration of  4-amino antipyrine of 0.3gm/100 ml and use potassium ferricyanide as  oxidant of   0.3gm/100 ml. the photo catalytic degredation of an aqueous solution of Amoxicillin has studied in the  several conditions in the found of TiO2 Nano-particles Titanium dioxide suspension. The affect of several factor like weight of titanium dioxide, Amoxicillin concentration. Data appeared that, the photocatalytic degradation method was great at the beginning and then decreased with time. The  photo catalytic degradation efficiency raise  through increasing catalyst loading from 0.05 g to 0.2 g and  lowering with the raise  in catalyst loading. Appeared  that the rate of photo  catalytic degredation was increased with decreasing AMX  drug concentration. also  study  Removal percentage  (E%) of a real sample (mixture of pharmacauticals compounds) from aqueous solution  find when time raise the absorption lowering  and give greater removal percentage  (E%) .