| ABSTRACT | 第2-4页 |
| 摘要 | 第5-14页 |
| Chapter 1: Introduction and literature review | 第14-33页 |
| Introduction | 第14-17页 |
| 1.1 Origin | 第17页 |
| 1.2 Synthesis Process | 第17-18页 |
| 1.3 Physicochemical properties of chitosan | 第18-19页 |
| 1.4 Chitosan-metal composites for various ions removal | 第19-28页 |
| 1.4.1 Chitosan-Fe for Cr(Ⅵ) removal | 第20-21页 |
| 1.4.2 Chitosan-Fe(Ⅲ) for reducing Cr(Ⅵ) to nontoxic Cr(Ⅲ) | 第21页 |
| 1.4.3 Chitosan-Fe membranes for As(V) removal | 第21-22页 |
| 1.4.4 Chitosan-Fe(Ⅲ) for As(Ⅲ) removal | 第22-23页 |
| 1.4.5 Chitosan-Fe(Ⅲ) for As(Ⅲ) and As(V) removal | 第23页 |
| 1.4.6 Al-chitosan-Fe for F- removal | 第23-24页 |
| 1.4.7 Chitosan–Fe-S-C for the removal of Cu(Ⅱ) | 第24页 |
| 1.4.8 La-chitosan beads for the removal of F- | 第24-25页 |
| 1.4.9 Zr entrapped chitosan beads for the removal of F- | 第25页 |
| 1.4.10 Nd modified chitosan for the removal of F- | 第25-26页 |
| 1.4.11 Ti–Al binary metal oxide chitosan for the removal of F- | 第26页 |
| 1.4.12 Chitosan-Ni(OH)_2 beads for the removal of boron | 第26-28页 |
| 1.5 Chitosan-metal composites for dye removal | 第28-31页 |
| 1.5.1 Chitosan-MgO composite for the removal of Methyl Orange | 第28-29页 |
| 1.5.2 Chitosan-Fe(Ⅲ) for the removal of Reactive Red 120 | 第29页 |
| 1.5.3 Chitosan-Cu-Fe for the removal of Reactive Black 5 | 第29-30页 |
| 1.5.4 Magnetic chitosan-Fe(Ⅲ) for the removal of C. I. Acid Red | 第30页 |
| 1.5.5 Diatomite/chitosan-Fe(Ⅲ) for the removal of Direct Orange 2 GL | 第30-31页 |
| 1.6 Summary | 第31-33页 |
| Chapter 2: Some important factors in the preparation of chitosan-metal complex for theremoval of dyes in aqueous solution | 第33-55页 |
| 2.1 Introduction | 第33-35页 |
| 2.2 Materials and Methods | 第35-38页 |
| 2.2.1 Chemicals | 第35-36页 |
| 2.2.2 Synthesis of chitosan-metal complexes | 第36页 |
| 2.2.3 Removal procedures of dyes | 第36-37页 |
| 2.2.4 Adsorption isotherms measurements | 第37页 |
| 2.2.5 Characterization | 第37-38页 |
| 2.2.6 Analysis | 第38页 |
| 2.3 Results and Discussion | 第38-54页 |
| 2.3.1 The effect of metal center in chitosan-metal complex on dye adsorption | 第38-40页 |
| 2.3.2 The effect of counter ions in chitosan-metal complex on dye adsorption | 第40-43页 |
| 2.3.3 Effect of crosslinking on chitosan-metal complexes for dye adsorption | 第43-45页 |
| 2.3.4 The FTIR spectra of chitosan-metal complexes | 第45-47页 |
| 2.3.5 pH sensitivity of chitosan-metal complexes | 第47-49页 |
| 2.3.6 The sensitivity of ionic environment | 第49-51页 |
| 2.3.7 The adsorption capacity of crosslinked CS-Fe-SO4 complex | 第51-54页 |
| 2.4 Summary | 第54-55页 |
| Chapter 3: Enhanced catalytic ability of chitosan-Cu-Fe bimetal complex for the removalof dyes in aqueous solution | 第55-85页 |
| 3.1 Introduction | 第55-57页 |
| 3.2 Materials and Methods | 第57-61页 |
| 3.2.1 Chemicals | 第57-58页 |
| 3.2.2 Preparation of chitosan metal complex | 第58-59页 |
| 3.2.3 Preparation of Chitosan-Cu and Chitosan-Fe complexes | 第59页 |
| 3.2.4 Removal procedures of dyes | 第59-60页 |
| 3.2.5 Characterization | 第60页 |
| 3.2.6 Analysis | 第60-61页 |
| 3.3 Results and Discussion | 第61-84页 |
| 3.3.1 Effect of Cu and Fe ions in the polymer matrix of chitosan | 第61-63页 |
| 3.3.2 Kinetic of RB 5 adsorption by chitosan complex | 第63-66页 |
| 3.3.3 Isotherms of RB 5 adsorption by chitosan complex | 第66-68页 |
| 3.3.4 Heterogeneous catalytic oxidation with chitosan complex | 第68-71页 |
| 3.3.5 pH sensitivity of chitosan complex | 第71-73页 |
| 3.3.6 Structure study of chitosan-metal complex | 第73-78页 |
| 3.3.7 Effect of the coexisting ions and adsorption of other anionic dyes | 第78-80页 |
| 3.3.8 The reusability of chitosan-Cu-Fe complex | 第80页 |
| 3.3.9 Possible mechanism | 第80-84页 |
| 3.4 Summary | 第84-85页 |
| Chapter 4: The Fenton modification of chitosan and its sandwich model for Cr(Ⅵ) adsorption | 第85-105页 |
| 4.1 Introduction | 第85-87页 |
| 4.2 Materials and Methods | 第87-90页 |
| 4.2.1 Chemicals | 第87页 |
| 4.2.2 Preparation of the Fenton modified chitosan | 第87-88页 |
| 4.2.3 Removal procedure for Cr(Ⅵ) | 第88-89页 |
| 4.2.4 Characterization | 第89页 |
| 4.2.5 Effect of pH | 第89页 |
| 4.2.6 Chromium analysis | 第89页 |
| 4.2.7 Effect of interfering ions | 第89-90页 |
| 4.2.8 Adsorption experiments | 第90页 |
| 4.3 Results and Discussion | 第90-104页 |
| 4.3.1 Kinetic study by Fenton modified chitosan | 第90-95页 |
| 4.3.2 pH effect | 第95-96页 |
| 4.3.3 Isotherm study | 第96-99页 |
| 4.3.4 Effect of the coexisting Ions | 第99-100页 |
| 4.3.5 Morphology | 第100-102页 |
| 4.3.6 Proposed mechanism | 第102-104页 |
| 4.4 Summary | 第104-105页 |
| Chapter 5: Conclusion and future work | 第105-109页 |
| 5.1 Conclusions | 第105-107页 |
| 5.2 Future perspectives | 第107-109页 |
| References | 第109-132页 |
| Acknowledgements | 第132页 |
