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Preparation of TiO2/C Photocatalyst by Ethanol Modification of Hydrolysed Titania TiO(OH)2 in a Pressure Reactor
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Magdalena Janus
Veröffentlicht/Copyright:
8. Dezember 2016
Abstract
A new way of preparation of TiO2/C photocatalyst by a pressure technique has been proposed. Hydrolysed titania TiO(OH)2 (supplied by Chemical Factory Police in Poland) was used as a source of TiO2. TiO2/C was obtained by treating of TiO(OH)2 with ethanol under pressure of 10 bar in a pressure reactor for 4 hours at a temperature of 180 °C. The building of carbon structures in the form of the alkene groups was proved by FTIR/DRS measurements, a new vibration in the region of 1520-1380 cm-1 appeared on the FTIR spectrum of TiO2/C photocatalyst. The photocatalytic activity of TiO2/C photocatalyst was tested for the azo dyes decomposition (Reactive Red, Reactive Black and Direct Green) under either UV or artificial solar light irradiation. The decantability of the photocatalysts in dye solutions after the photocatalytic process was measured. The photoactivity of prepared TiO2/C was compared to the hydrolysed titania and a commercial TiO2 Degussa P25. Introducing of carbon to TiO2 improved both, the photoactivity of TiO2 under UV irradiation and its ability for sedimentation. The both, hydrolysed titania and TiO2/C photocatalyst revealed a better photoactivity for dyes decomposition under artificial solar light irradiation than Degussa P25, Reactive Red spread on the surface of TiO(OH)2 was decolourised after 4 hours of artificial solar light irradiation while on P25 surface this process took 72 hours.
Received: 2007-3-3
Accepted: 2007-4-21
Published Online: 2016-12-8
Published in Print: 2007-7-1
© 2016 by Walter de Gruyter Berlin/Boston
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Artikel in diesem Heft
- 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
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- 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
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- 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
