Biotemplated copper oxide catalysts over graphene oxide for acetaminophen removal: Reaction kinetics analysis and cost estimation. (12th October 2021)

• Record Type: Journal Article
• Authors: Palas, Burcu; Ersöz, Gülin; Atalay, Süheyda
• Is Part Of: Chemical engineering science. Volume 242(2021)
• Publication Date: 2021-10-12
• Subjects: Biomimetic catalyst -- Catalytic wet air oxidation -- Cost estimation -- Pharmaceutical removal -- Reaction kinetics model; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; Chemical engineering; Periodicals; Electronic journals; 660
• DOI: 10.1016/j.ces.2021.116593
• Languages: English
• ISSNs: 0009-2509

Abstract

Graphical abstract: Highlights: Graphene oxide supported biomimetic CuO catalysts were prepared. CWAO performances of the biomimetic catalysts were tested. 52.1% TOC removal and 96.2% acetaminophen degradation efficiencies were achieved. The degradation kinetics was found to fit Langmuir-Hinshelwood model. Heat of adsorption and adsorption entropy were calculated. Abstract: TCuOX-GO (TCuO: Tomato skin inspired copper oxide; GO: Graphene oxide; X, weight percentage of copper oxide: 10, 50, and 90) catalysts were prepared and their performances on acetaminophen removal were tested in catalytic wet air oxidation (CWAO) process. Copper oxide particles were synthesized from tomato skin biotemplates to contribute valorization of food wastes and the development of ecofriendly catalysts. The most effective catalyst was determined as TCuO50-GO. Under the optimum conditions 52.1% TOC removal and 96.2% acetaminophen degradation efficiencies were achieved. The acetaminophen degradation kinetics was found to fit Langmuir-Hinshelwood model. The heat of adsorption and adsorption entropy were calculated as −19148.8 J/mol (for oxygen), −10380.9 J/mol (for acetaminophen), −10.17 J/molK (for oxygen), and −14.5 J/molK (for acetaminophen), respectively. The use of biomimetic catalysts in CWAO process and investigation of treatment cost and reaction kinetics in the presence of the biomimetic catalysts are the main original approaches of this study.