声明
摘要
Abstract
Chapter 1 Literature Review
1．1 Introduction
1．1．1 Sunlight
1．1．2 Semiconductor Photocatalysis
1．1．3 Preparation Methods of Photocatalysts
1．2 Commonly-used Titania Photocatalysts
1．2．2 TiO2 and Concepts of Photocatalysis
1．3 Visible-Light-Responsive Photocatalysts
1．3．1 Noble Metal Doping
1．3．2 Non-Metal Doping
1．3．3 Heterojunction Composites
1．4 Bismuth Titanium Oxide(Bi4Ti3O12)Photocatalyst
1．4．1 Research Status of Bi4Ti3O12
1．4．2 Existing Problems of Bi4Ti3O12
1．5 Aim of This Work
Chapter 2 Experimental
2．2．2 Synthesis of Catalyst Support Nanosheets
2．3 Ag-loading onto Bi4Ti3O12
2．3．1 X wt％ AgNO3-loading(X=0．5，0．75，1．0，1．5，2．0)
2．4 Photoreactor
Chapter 3 Photocatalyst Characterization
3．1 Characterization Techniques
3．1．3 X-ray Photoelectron Spectroscopy(XPS)
3．1．4 UV-Vis(Ultraviolet-Visible Spectrophotometry)
3．1．5 PL(Photoluminescence Spectroscopy)
3，1．7 EDS(Energy Dispersive X-ray Spectroscopy)
3．1．9 Brunauer-Emmett-Teller(BET)
3．2 Photocatalyst Characterization
3．2．2 Phase Composition
3．2．3 Binding Energies
3．2．4 Light Absorption
3．2．5 Study of Half-Lives of Catalysis
3．2．6 Photoluminescence Emission
3．2．7 Study of Catalyst Morphology
3．2．8 Surface Area
Chapter 4 Photocatalytic Performance
4．1 Photocatalytic Activity by Changing Rate of Silver
4．2 Photocatalytic Activity Changing Nanosheet Structure
4．3 Photocatalytic Activity Changing pH Values of RhB Solution
4．4 Photocatalytic Activity by Changing of Titanium Source
4．5 Photocatalystic Mechanism
5．1 Conclusions
References
Acknowledgements
Brief Introduction of the Author and Supervisor
