TY - JOUR JF - Journal of Hazardous Materials SP - 445 EP - 449 Y1 - 2010/// N1 - cited By 377 N2 - The study examined the effect of operating conditions (zinc oxide concentration, pH and irradiation time) of the UV/ZnO photocatalytic process on degradation of amoxicillin, ampicillin and cloxacillin in aqueous solution. pH has a great effect on amoxicillin, ampicillin and cloxacillin degradation. The optimum operating conditions for complete degradation of antibiotics in an aqueous solution containing 104, 105 and 103 mg/L amoxicillin, ampicillin and cloxacillin, respectively were: zinc oxide 0.5 g/L, irradiation time 180 min and pH 11. Under optimum operating conditions, complete degradation of amoxicillin, ampicillin and cloxacillin occurred and COD and DOC removal were 23.9 and 9.7, respectively. The photocatalytic reactions under optimum conditions approximately followed a pseudo-first order kinetics with rate constant (k) 0.018, 0.015 and 0.029 min-1 for amoxicillin, ampicillin and cloxacillin, respectively. UV/ZnO photocatalysis can be used for amoxicillin, ampicillin and cloxacillin degradation in aqueous solution. © 2009 Elsevier B.V. All rights reserved. A1 - Elmolla, E.S. A1 - Chaudhuri, M. SN - 03043894 VL - 173 TI - Degradation of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution by the UV/ZnO photocatalytic process AV - none KW - Amoxicillin; Aqueous solutions; Irradiation time; Operating condition; Optimum conditions; Optimum operating conditions; Photocatalytic process; Photocatalytic reactions; Pseudo-first order kinetics KW - Antibiotics; Degradation; Irradiation; Photocatalysis; Rate constants; Solutions; Zinc; Zinc oxide KW - pH effects KW - amoxicillin; ampicillin; antibiotic agent; cloxacillin; zinc oxide KW - antibiotics; aqueous solution; catalysis; chemical oxygen demand; degradation; dissolved organic carbon; irradiation; zinc KW - analytic method; aqueous solution; article; chemical oxygen demand; chemical reaction kinetics; drug degradation; drug structure; irradiation; pH; photocatalysis; ultraviolet radiation KW - Amoxicillin; Ampicillin; Anti-Bacterial Agents; Biodegradation KW - Environmental; Catalysis; Chromatography KW - High Pressure Liquid; Cloxacillin; Hydrogen-Ion Concentration; Kinetics; Medical Waste; Photochemistry; Solutions; Spectrophotometry KW - Ultraviolet; Time Factors; Ultraviolet Rays; Water; Zinc Oxide UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-71749086081&doi=10.1016%2fj.jhazmat.2009.08.104&partnerID=40&md5=c148f9323e0964138a67df2924bfef2c ID - scholars1311 IS - 1-3 ER -