| Abstract | 第3-4页 |
| 摘要 | 第5-8页 |
| Chapter Ⅰ introduction and literature reviews | 第8-24页 |
| 1.1 Introduction | 第8-11页 |
| 1.2 Overview of Photocatalytic Reaction Research | 第11-23页 |
| 1.2.1 Principles of Photocatalysis | 第12-13页 |
| 1.2.2 Catalyst Structure | 第13页 |
| 1.2.3 Photocatalytic reaction mechanism | 第13-16页 |
| 1.2.4 Semiconductor-type photocatalysts | 第16-17页 |
| 1.2.5 Niobium oxides Photocatalyst | 第17-19页 |
| 1.2.6 Modification of Nb_2O_5 for harvesting visible light | 第19页 |
| 1.2.7 Photocatalytic Applications | 第19-22页 |
| 1.2.8 Present status and issues | 第22-23页 |
| 1.3 The Aims of my research | 第23页 |
| 1.4 Dissertation outlines | 第23-24页 |
| Chapter Ⅱ Design and characterization techniques for Nb_2O_5 toward visible lightresponse | 第24-38页 |
| 2.1 Morphologies and surface areas of Nb_2O_5 crystals | 第24-25页 |
| 2.2 Band-gap change | 第25-28页 |
| 2.3 Characterization Techniques | 第28-38页 |
| 2.3.1 X-Ray Diffraction | 第28-30页 |
| 2.3.2 Electron microscope(EM) | 第30-32页 |
| 2.3.3 X-Ray Photoelectron Spectroscopy(XPS) | 第32-34页 |
| 2.3.4 Ultraviolet-visible diffuse reflectance spectroscopy | 第34-36页 |
| 2.3.5 Brunauere-Emmette-Teller(BET) | 第36-37页 |
| 2.3.6 Fourier-transform infrared spectroscopy(FT-IR) | 第37-38页 |
| Chapter Ⅲ Preparation and characterization of visible light excitedphotocatalysts from Nb_2O_5 | 第38-54页 |
| 3.1 Experimental Materials | 第38页 |
| 3.2 Experimental Apparatus | 第38-39页 |
| 3.3 Preparation of C,N co-modified Nb_2O_5 nanowires | 第39页 |
| 3.4 Physical and chemical properties of as prepared photocatalysis | 第39-50页 |
| 3.4.1 Morphology and structure characterization | 第40-44页 |
| 3.4.2 Synthesis processes | 第44-50页 |
| 3.5 Optical and photo electrochemical properties of C,N co-modified Nb_2O_5 | 第50-51页 |
| 3.6 XPS analysis | 第51-54页 |
| Chapter Ⅳ Photocatalytic performance in RhB degradation | 第54-62页 |
| 4.1 Experimental Materials | 第54页 |
| 4.2 Experimental Apparatus | 第54-55页 |
| 4.3 Photocatalytic activity experiment | 第55-56页 |
| 4.4 Results and Discussion | 第56-62页 |
| 4.4.1 Photocatalytic performance | 第56-58页 |
| 4.4.2 Photodegradation for RhB over C,N co-modified Nb_2O_5 nanowires aftercalcination at different temperature | 第58-59页 |
| 4.4.3 Stability of the catalyst | 第59页 |
| 4.4.4 Mechanism of the photocatalysis of C,N co-modified Nb_2O_5 | 第59-62页 |
| Chapter Ⅴ Conclusion | 第62-64页 |
| References | 第64-76页 |
| Published Papers and joined Scientific Researches | 第76-78页 |
| Published Papers | 第76-78页 |
| ACKNOWLEDGEMENTS | 第78页 |
