ABSTRACT | 第5-7页 |
Chapter 1: Introduction | 第12-32页 |
1.1. Background | 第12-13页 |
1.2. Progress in the research on TiO_2 and SrTiO_3 | 第13-29页 |
1.2.1. Principle of photocatalytic degradation of organic pollutants | 第13-14页 |
1.2.2. Principle of photocatalytic hydrogen evolution from water | 第14-16页 |
1.2.3. TiO_2 and SrTiO_3 | 第16-17页 |
1.2.4. Drawbacks of TiO_2 and SrTiO_3 | 第17-18页 |
1.2.5. Enhancement of photocatalytic activity of TiO_2 and SrTiO_3 | 第18-25页 |
1.2.5.1. Reducing recombination of e~-/h~+ pair | 第18-21页 |
1. Modifying with metal | 第18-19页 |
2. Doping with metal or non-metal elements | 第19页 |
3. Coupling with other semiconductors | 第19-21页 |
1.2.5.2. Adding electron donors into the reaction solution | 第21-22页 |
1.2.5.3. Study on the visible photocatalysts based on TiO_2 and SrTiO_3 | 第22-25页 |
1. TiO_2 and SrTiO_3 doped with metal or non-metal | 第22-23页 |
2. TiO_2 and SrTiO_3 sensitized with dyes or narrow ban gap semiconductor | 第23-25页 |
1.3. Carbon nanotubes | 第25-29页 |
1.3.1. Classification and structure of carbon nanotubes | 第26-28页 |
1.3.2. Electronic properties of carbon nanotubes | 第28页 |
1.3.3. Modification of carbon nanotubes | 第28-29页 |
1.4. Thesis overview and objectives | 第29-32页 |
Chapter 2: Experimental procedures and characterisation techniques | 第32-40页 |
2.1. Preparation of photocatalysts | 第32-34页 |
2.1.1. Preparation of SrTiO_3 photocatalyst | 第32页 |
2.1.2. Preparation of CuO-SrTiO_3 photocatalyst | 第32-33页 |
2.1.3. Preparation of Cu-SrTiO_3 photocatalyst | 第33页 |
2.1.4. Preparation of Pt-SrTiO_3 photocatalyst | 第33页 |
2.1.5. Preparation of MWNTs loaded with CuO(CuO-MWNTs) | 第33-34页 |
2.1.6. Preparation of Si-doped TiO_2 photocatalyst | 第34页 |
2.2. Preparation of working electrodes | 第34-36页 |
2.2.1. Preparation of glassy carbon electrodes coated with CuO-MWNTs | 第34-35页 |
2.2.2. Preparation of ITO coated with CuO-MWNTs electrodes | 第35页 |
2.2.3. Preparation of ITO coated with Si-TiO_2 electrodes | 第35-36页 |
2.3. Characterization techniques | 第36页 |
2.4. Photoelectrochemical measurements | 第36-37页 |
2.4.1. Electrochemical measurements of CuO-MWNTs electrodes | 第36-37页 |
2.4.2. Photoelectrochemical measurements of Si-TiO_2/ITO electrodes | 第37页 |
2.5. Photocatalytic water splitting experiments | 第37-38页 |
2.5.1. Photocatalytic water splitting experiments of CuO-SrTiO_3 photocatalyst | 第37-38页 |
2.5.2. Photocatalytic water splitting experiments of Cu-SrTiO_3 photocatalyst | 第38页 |
2.5.3. Photocatalytic water splitting experiment of photocatalytic system containing Eosin Y,MWNTs and CuO | 第38页 |
2.6. Quantem yield of hydrogen evolution | 第38-39页 |
2.7. Photodegradation experiments | 第39-40页 |
Chapter 3: Effect of CuO loading on the photocatalytic effciency of SrTiO_3 for hydrogenevolution | 第40-57页 |
3.1. Introduction | 第40-41页 |
3.2. Results and discussion | 第41-55页 |
3.2.1. Characterization of photocatalyst | 第41-44页 |
3.2.2. Effect of loading amount of CuO on hydrogen evolution activity over SrTiO_3 | 第44-46页 |
3.2.3. Effects of type and concentration of electron donors on hydrogen evolution overCuO-SrTiO_3 | 第46-47页 |
3.2.4. Effect of reaction temperature on hydrogen evolution over CuO-SrTiO_3 | 第47-48页 |
3.2.5. Effect of amount of photocatalyst on hydrogen evolution | 第48-49页 |
3.2.6. Photocatalytic hydrogen evolution activity of 1.5% CuO-SrTiO_3 | 第49-54页 |
3.2.7. Stability of the photocatalyst | 第54页 |
3.2.8. Quantum yield of hydrogen evolution | 第54-55页 |
3.3. Conclusions | 第55-57页 |
Chapter 4: Effect of metallic Cu-loading on the photocatalytic effciency of SrTiO_3 forhydrogen evolution | 第57-70页 |
4.1. Introduction | 第57-58页 |
4.2. Results and discussion | 第58-69页 |
4.2.1. Structure and component confirmation of the Cu-SrTiO_3 photocatalyst | 第58-60页 |
4.2.2. Photocatalytic activity of hydrogen evolution over 0.5% Cu-SrTiO_3 | 第60-65页 |
4.2.3. Effect of loading amount of Cu on the photocatalytic activity of SrTiO_3 | 第65-66页 |
4.2.4. Effect of concentration of methanol on the photocatalytic activity of 0.5% Cu-SrTiO_3 | 第66-67页 |
4.2.5. Effect of reaction temperature on the photocatalytic activity of 0.5% Cu-SrTiO_3 | 第67-68页 |
4.2.6. Effect of the dosage of 0.5% Cu-SrTiO_3 on its photocatalytic activity | 第68-69页 |
4.3. Conclusions | 第69-70页 |
Chapter 5: Effect of CuO on the catalytic activity of the photocatalytic systemcontaining Eosin Y, multiwalled carbon nanotubes and CuO for photocatalytichydrogen evolution | 第70-82页 |
5.1. Introduction | 第70-71页 |
5.2. Results and discussion | 第71-81页 |
5.2.1. Structure characterization | 第71-73页 |
5.2.2. Photocatalytic activity of the photocatalytic system containing Eosin Y andCuO-MWNTs for hydrogen evolution under visible light irradiation | 第73-75页 |
5.2.3. Electrochemical behavior | 第75-81页 |
5.2.3.1. Cyclic voltammetry | 第76-78页 |
5.2.3.2. Electrochemical impedance spectroscopy | 第78-81页 |
5.3. Conclusions | 第81-82页 |
Additional chapter (Chapter 6): Effect of Si doping on the photoelectrochemicalproperty and photocatalytic activity of TiO_2 nanoparticles | 第82-92页 |
6.1. Introduction | 第82-83页 |
6.2. Results and discussion | 第83-91页 |
6.2.1. Photocatalyst characterization results | 第83-87页 |
6.2.2. Photoelectrochemical characteristics | 第87-89页 |
6.2.3. Photocatalytic degradation activity of MO over 15% Si-TiO_2 and P25 | 第89-91页 |
6.3. Conclusions | 第91-92页 |
Chapter 7: General conclusions | 第92-95页 |
References | 第95-120页 |
致谢 | 第120-121页 |
攻读博士学位期间发表论文情况 | 第121-122页 |
卷内备考表 | 第122页 |