Hydrogen Peroxide/Iron Oxide -Induced Catalytic Oxidation of Organic Compounds
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Mirat D. Gurol
Abstract
This paper describes a novel heterogeneous catalytic oxidation process involving the use of hydrogen peroxide (H2O2) with granular size iron oxide particles (α-FeOOH) in aqueous phase. The generation of hydroxyl radical (•OH) in the process is demonstrated through the use of a probe chemical, n-chlorobutane (BuCl). Based on the experimental evidence, it is concluded that the •OH, which is produced through the interaction of H2O2 with the surface sites, reacts with solutes adsorbed on the goethite surface, causing oxidation of the organic compounds. The generation rate of •OH increases slightly with increasing pH in the range of 5-9. The oxidation rate of BuCl by •OH is relatively insensitive to the level of bicarbonate ion in subject water due to low affinity of bicarbonate for the surface. Phosphate, on the other hand, inhibits the oxidation rate by preferential adsorption on the surface. This new process provides a viable alternative to the existing oxidation technologies, especially when water has high alkalinity, and/or it is desired to selectively oxidize target compounds that have high affinity for the surface.
© 2016 by Walter de Gruyter Berlin/Boston
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- Streamer Corona Discharge Induced by Laser Pulses During LIF Measurements in a DC Non-thermal Plasma Reactor for NO Oxidation
- Destruction of Volatile Organic Compounds in Air by a Superimposed Barrier Discharge Plasma Reactor and Activated Carbon Filter Hybrid System
- The Photodecomposition of Acetaldehyde in Gas Phase Using Immobilized TiO2 on Porous α-Al2O3 Tube
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- Homogeneous Photoreactions for AOTs: Reactor Analysis and Design
- A Laboratory Reactor for Photocatalytic Studies in Slurry Operation
- Optical Characteristics of Capillary U-tube Ar-Hg High Frequency Glow Discharge Plasmas and its Application for Ammonia Compound Contaminated Water Treatments
- Gas-Phase Photocatalytic Degradation of Trichloroethylene -Relation with Photochemical Reactions
- Hydrogen Peroxide Cleaning of Asphalt from Surfaces The Accelerating Rate Calorimetry (ARC™) Study: The Effect of Silica Gel and Solution pH on Hydrogen Peroxide Decomposition
- Characteristics of Ring-to-Cylinder Type Electrode System on Pulsed Discharge in Water
- Nitrogen Oxides Removal by Using Plate Type Reactor Combined with Catalysts
- A Comparison of the Activity of Titanium Dioxide Photocatalysts for the Oxidation of Ethanol in Air
- TiO2 Photocatalytic Oxidation of Butyraldehyde, Ethylbenzene and PCE in the Air through Concentric Reactors
