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Alex Ibhadon1, G.M.Greenway and P. Falaras3

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Presentation on theme: "Alex Ibhadon1, G.M.Greenway and P. Falaras3"— Presentation transcript:

1 Alex Ibhadon1, G.M.Greenway and P. Falaras3
1Faculty of Science and the Environment, University of Hull 2Department of Chemistry, University of Hull, Cottingham Road, Hull, United Kingdom 3National Centre of Scientific Research, Institute of Physical Chemistry Athens , Greece Abstract This paper reports the synthesis, characterisation and application of titania based catalysts for environmental VOC remediation in the gas phase and solution. Advanced oxidation processes, heterogeneous catalysis

2 BINARY METAL OXIDE COMPOSITE NANOSTRUCTURES
Composite nanostructures and particles (RuO2, SiO2, TiO2 ,etc) Synthesis and Characterization Optimization of Catalyst properties Multi-functionality Reactor design to accommodate Catalyst Gas-Phase studies Solution Phase studies

3 Environmental Applications

4 EXAMPLES OF TiO2 CATALYSTS
Films – deposit unto glass substrates Deposition unto Tiles/Ceramics Pastes - coated unto glass spheres Particles - PBR application TiO2 Foams – solution and gas phase Composite nanostructures Hybrids Other semiconductors

5 Scanning Electron Microscopy TiO2 Film

6 CHARACTERIZATION OF TiO2 FILMS WITH AFM

7 Packed Bed Photoreactor

8 Solution Phase Photocatalysis
Kansal et all

9 Treatment of Industrial Effluents: Azo -Dye Degradation
Degradation pH dependent Foam – initial stages very fast, absorption Optimum catalyst load Optimum pollutant concentration Reactor design Kinetics, radiation modelling Problems of light absorption Problems of light scattering

10 Kinetics of Degradation

11 Effect of pH on Adsorption
Chantal Guillard , , a, Hinda Lachheba, b, Ammar Houasb, Mohamed Ksibib, Elimame Elalouib and Jean-Marie Herrmanna

12 Methyl Orange Degradation

13 Methyl Orange Degradation

14 Methyl Orange Degradation

15 Gas-Phase Degradation of BTX

16 Degradation of BTX

17 Conclusion Surface Processes Surface Area, specific surface Area
Radiation absorption measurement and modelling Kinetics – Langmuir – early stages of reaction Composite material characterization Applications

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