Photocatalytic Oxidation of Four Model Mercaptans from Aquatic Environment Using Ag-ZnO Nanocomposite Thin Film for Odor Control
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Abstract
In this study, Ag-ZnO nanocomposite thin film catalysts coated on glass prepared by a simple spin-coating method were used to mineralize four model mercaptans, 2-Mercaptobenzoxazole (MBO), 2-Mercaptobenzimidazole (MBI), 3-Mercapto-1,2,4-triazole (MT) and 2-Mercaptopyrimidine (MP) for odor control. Ag-ZnO nanocomposite thin film was characterized by means of X-ray diffraction (XRD), scanning electron microscopy/energy dispersive X-ray spectrometry (SEM/EDX). It was found that these mercaptans underwent photocatalytic degradation in the presence of Ag-ZnO nano-composite thin film, and the optimum catalyst was Ag-ZnO with 0.064 molar percent of Ag. The rate of photocatalytic process carried out with Ag-ZnO thin film as well as the relationship between the operational parameters. This fundamental research about the photocatalytic reaction provides essential knowledge with potential to further develop a new process for mercaptan degradation in odor control.
© 2016 by Walter de Gruyter Berlin/Boston
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Artikel in diesem Heft
- Sterilization Techniques for Soil Remediation and Agriculture Based on Ozone and AOP
- Autonomous Water Treatment Installation Energized from PV Panels
- Design of In Situ Fenton Oxidation Based on the Integration of Experimental and Numerical Modelling
- Photocatalytic Reduction Reaction in Air Using Au Nanoparticle-Loaded TiO2
- Thin Layers of Photocatalytic TiO2 Prepared by Inkjet Printing of a Sol-gel Precursor
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- Photocatalytic Oxidation of Four Model Mercaptans from Aquatic Environment Using Ag-ZnO Nanocomposite Thin Film for Odor Control
- Hydrothermal Preparation and Comparative Study of Halogen-doping TiO2 Photocatalysts
- Degradation of Textile Dyes, Dyebaths and Dyeing Wastewater by Homogeneous and Heterogeneous Sonophotolysis
- The Role of Oxidative Treatment on the Trivalent Cation Complexation Properties of Natural Organic Matter
- Combined Biological and Chemical Treatment of Anaerobically Digested Distillery Wastewater
