声明
Contents
Abstract
摘要
Chapter one General Introduction
Chapter two Literature Review
2.1.Photocatalysis
2.1.1.Homogeneous photoeatalysis
2.1.2.Heterogeneous photocatalysis
2.2.Photocatalytic Materials
2.3.Titanium dioxide
2.3.1.Occurrence and structural properties
2.3.2.Electronic structure
2.3.3.Photocatalytic properties of Titanium dioxide
2.3.4.Enhanced PhotocataIytic Activity
2.3.5.Preparation methods
2.4.Characterization techniques
2.4.1.UV-vis spectroscopy
2.4.2.Fourier transforms infrared spectroscopy(FTIR)
2.4.3.X-ray Diffraction
2.4.4.Brunauer,Emmett Teller(BET)
2.4.5.X-ray photoelectron spectroscope(XPS)
2.4.6.Photoluminescence Spectroscopy
2.5.Application of nanomaterials
2.5.1.Chemical applications
2.5.2.Optical and electronic applications
2.5.3.Magnetic applications
2.5.4.Metal and ceramics applications
2.5.5.Biological applications
2.5.6.Environmental application
Chapter Three Research on Carbon-doped Titanium Dioxide Thin Films
3.1.Introduction
3.2.Materials and methods
3.2.1.Materials
3.2.2.Synthesis of visible-light-activated C-TiO2 films
3.2.3.Characterization of the C-TiO2 films
3.2.4.Photocatalytic degradation experiment
3.2.5.Detection of hydroxyl radicals
3.3.Results and discussion
3.3.1.X-ray diffraction studies
3.3.2.UV-vis diffuse reflectance spectra
3.3.3.X-ray photoelectron spectroscope
3.3.4.Fourier transforms infrared(FT-IR)spectroscopy
3.3.5.Photoluminescence spectra
3.3.6.Photocatalytic activity of C-TiO2 thin film
3.4.Conclusions
Chapter four Research on TiO2/Fe2O3 nanoparticles
4.1.Introduction
4.2.Materials and Methods
4.2.1.Chemicals
4.2.2.Samples preparation
4.2.3.Characterization
4.2.4.Activity test
4.3.Results and discussion
4.3.1.Photocatalytic activity tests
4.3.2.Characterization tests
4.3.3.Photocatalytic mechanism
4.4.Conclusions
Chapter five Research on CN-TiO2 Modified with OMS-2
5.1.Introduction
5.2.Materials and methods
5.2.1.Chemieals
5.2.2.Synthesis of Daylight-Activated CN-TiO2/OMS-2 Samples
5.2.3.Characterization of Synthesized CN-TiO2/OMS-2 Samples
5.2.4.Photocatalytie Evaluation with Methyl orange under Daylight
5.3.Resuits and Discussion
5.3.1.Characterization tests
5.3.2.Photocatalytic Activity of CN-TiO2/OMS-2 Samples
5.3.3.Photocatalytic Mechanism
5.4.Conclusions
Chapter six Research on Ag/C-TiO2
6.1.Introduction
6.2.Materials and methods
6.2.1.Materials
6.2.2.Synthesis of C-TiO2
6.2.3.Photoreduction of silver nanoparticles over the C-TiO2 substrate
6.2.4.Characterization of the Ag/C-TiO2
6.2.5.Photocatalytic degradation experiment
6.3.Results and Discussion
6.3.1.Characterization results
6.3.2.Photocatalytic activity
6.4.Conclusion
Chapter seven Summary and Conclusions
References
ACKNOWLEDGEMENTS
List of publications