Photocatalytic Degradation of Cephalexin By Ag/Ag2o/Tio2 Catalyst Thin Film in A Spinning Disc Reactor

This study investigated the photodegradation of cephalexin (cpx) using a spinning disc photocatalytic reactor (sdpr)# to this end, visible light-activated ag/ag2o/tio2 thin film was immobilized on a ceramic disc by the sol-gel spin coating method# the response surface methodology (rsm) on the basis of the central composite design (ccd) was utilized to evaluate the impact of the operational factors (e#g# illumination duration, rotational speed, solution flow rate, and initial cpx concentration) on the efficiency of cpx photodegradation# the removal efficiency in optimal conditions for cpx was obtained 96#06% upon implementing the following conditions: illumination time: 60 min, the rotational speed: 215 rpm, the solution flow rate: 0#6 l/min, and initial cpx concentration: 30 mg/l#