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Effect of TiO2 Precursor on the Photoactivity of Fe-C-TiO2 Photocatalysts for Acid Red (AR) Decomposition
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Beata Tryba
Published/Copyright:
December 8, 2016
Abstract
Fe-C-TiO2 photocatalysts were prepared by mechanical mixing of TiO2 with FeC2O4 and heating at 400-800°C in a pipe furnace under Ar atmosphere. Three different kinds of TiO2 were used for preparation, P25 of Degussa Company (Germany), TytanpolⓇ A11 and hydrolysed titania (TiO(OH)2), obtained from Police Factory in Poland. It was proved, that the higher carbon deposition through the carbonization of oxalate was achieved on TiO2 having the higher BET surface area (TiO(OH)2). The presence of rutile phase in TiO2 P25 caused fast transformation of anatase to metallic iron and different iron titanate phases, such as: FeTiO3, Fe3O4 and Fe2TiO4, no anatase phase was observed above 500°C. TytanpolⓇ A11 having anatase phase was rather chemically stable and has been poorly modified. In case of modification of the TiO(OH)2, anatase coexisted with Fe3O4 and FeTiO3 phases, in samples heated above 600°C insignificant amount of rutile appeared. High photodecomposition of AR under UV/H2O2 was observed on Fe-C-TiO2 photocatalysts prepared from TiO(OH)2 at 500 and 600°C, consisted mostly from anatase, Fe3O4 and FeTiO3 phases. It is postulated that the presence of carbon in Fe-C-TiO2 photocatalyst is important for combination of photocatalysis and photo-Fenton processes and preparation of Fe-C-TiO2 having high photoactivity can be achieved by modification of small size TiO2 particles through the heating with FeC2O4 in inert atmosphere.
Received: 2007-2-20
Accepted: 2007-4-11
Published Online: 2016-12-8
Published in Print: 2007-7-1
© 2016 by Walter de Gruyter Berlin/Boston
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Keywords for this article
Fe-C-TiO2 photocatalyst;
photocatalysis;
photo- Fenton;
Acid Red photodecomposition
Articles in the same Issue
- Simple Models for the Control of Photo-Fenton by Monitoring H2O2
- Kinetic Model of the Nitrogen Oxide Removal Process by Ozone
- Dependency of Advanced Oxidation Performance on the Contaminated Water Feed Mode for Ozonation Combined with Electrolysis Using a Two-compartment Electrolytic Flow Cell
- Actinometry Measurement of Oxygen Dissociation Degree in a Microwave Discharge Plasma and Effect of Electron Energy Distribution Function
- Titanium Oxidation by Microwave Discharge Oxygen Plasma and Relationship with Plasma Parameters
- Preparation of TiO2/C Photocatalyst by Ethanol Modification of Hydrolysed Titania TiO(OH)2 in a Pressure Reactor
- Effect of TiO2 Precursor on the Photoactivity of Fe-C-TiO2 Photocatalysts for Acid Red (AR) Decomposition
- Enhancing the Reuse of Treated Effluent by Photocatalytic Process
- Effect of Reagent Addition Order in Catalyzed H2O2 Propagations (CHP) Treatment Systems
- Mass Transfer of Ozone in a Hybrid Ozonation-Membrane System
- Parametric Survey for Efficient DeNOx by Direct Decomposition of NO Using an Intermittent DBD Generated by a One-Cycle Sinusoidal Power Source
- Efficient NO Removal from Diesel Exhausts Gases by a Combination of Ozone Injection and Exhaust Gas Recirculation
- Duty Factor Effect on Ozone Production Using Dielectric Barrier Discharge Reactor Driven by IGBT Pulse Modulator
- Epoxidation of 1-butene-3-ol with Hydrogen Peroxide under Autogenic and Atmospheric Pressure
- Characterization of Oxygen-Fed Ozonizer Based on Pulsed Streamer Discharge
- Plasma-Catalytic Processes in Gliding Discharges
- New Method for the Synthesis of a Photocatalyst by Using Intercalation of Amines in K2Ti4O9
- Photocatalytic Oxidation of Pharmaceutical compounds: Kinetics and Pathways for Ibuprofen, Clofibric Acid, Diclofenac and Naproxen
- Photocatalytic Decolorization of Reclaimed Water Using Photocatalyst Coated Black Light with Spiral Fluid Flow System
- Characterization of Anodized Titanium Oxide Film and Photocatalytic Decomposition of Methylene Blue with Microcurrent
- Effect of Platinum on the Decomposition Efficiency and Apparent Quantum Yield of Photocatalysis of Isopropanol in an Annular Photoreactor
- Photocatalytic Degradation of 4-Chlorophenol Using TiO2 and Pt-TiO2 Nanoparticles Prepared by Sol-Gel Method
- Photocatalytic Oxidation of H2S on TiO2 and TiO2-ZrO2 Thin Films
- Degradation of Benzo[a]pyrene using TiO2 and Ag-loaded BiVO4 Photocatalysts: Evaluation by the Ames Mutagenicity Assay
- Effects of Operational Factors on the Atrazine Degradation in a Fixed Nano-TiO2 Photocatalytic Reactor
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- Preparation of TiO2 and TiO2/SiO2 Films on Polyester Granules for Photocatalytic Applications
- Ferric Reduction and Oxalate Mineralization with Fered-Fenton Method
- Inactivation of Waterborne Pathogens Using Solar Photocatalysis
- Gaseous Electrical Discharge-Induced Degradation of Organic Compound in Wastewater: UV Irradiation and Ozonation Effect
- Modeling the Diffusion Mechanism and the Reaction Kinetics for the Photocatalytic Degradation of Acid Red 151 Aqueous Solutions by ZnO: Comparison of Linear and Non-Linear Methods
