ABBREVIATIONS
1. Introduction
1.1. Hazards of Methylene blue and Methyl orange
1.1.1. Dyes removal methods
1.2 Classification and properties of two dimensional semiconductor materials
1.2.1. Graphene and graphene based two dimensional semiconductor materials
1.2.2. Transition metal dichalcogenides two dimensional semiconductor materials
1.2.3. Hexagonal boron nitride and h-BN based two dimensional semiconductor materials
1.2.4. Two dimensional semiconductor graphite phase carbon nitride and its composites
1.3. Synthesis of two dimensional semiconductor materials
1.3.1. Mechanical exfoliation
1.3.2. Chemical vapor deposition
1.3.3. Ball milling method
1.3.4. Hydrothermal method
1.4. Characterization techniques of two dimensional semiconductor materials
1.5. Optimization of pollutants removal process by artificial intelligence
1.6. Applications of different two dimensional semiconductor materials in environmental remediation and monitoring
1.6.1. Applications in dyes removal
1.6.2. Applications in heavy metals removal
1.6.4. Applications in gas sensors
1.6.5. Applications in photocatalysis and electrocatalysis
1.7. Main objectives of the present work
2. Synthesis of mesoporous rGO/Fe/Co and Fe3O4/rGO/N-F codoped TiO2 nanohybrids
2.1. Experimental section
2.1.1. Materials
2.2. Synthesis of nanohybrids
2.2.1. Preparation of GO
2.2.2. Synthesis of rGO/Fe/Co nanohybrids
2.2.3. Fabrication of rGO/N-F-TiO2 nanocomposites
2.2.4. Synthesis of mesoporous Fe3O4/rGO/N-F codoped TiO2 nanocomposites
2.3. Characterization of mesoporous rGO/Fe/Co and Fe3O4/rGO/N-F codoped TiO2 nanohybrids
2.4. Results and Discussion
2.4.1. Characterization of the rGO/Fe/Co nanohybrids
2.4.2 Characterization of Fe3O4/rGO/N-F codoped TiO2 nanocomposites
2.5. Summary
3. Study on the decontamination of methylene blue (MB) by mesoporous rGO/Fe/Co nanohybrids
3.1 Preparation of dye solution
3.2 Batch decontamination experiments
3.3 Experimental design
3.3.1 Central Composite Design (CCD)
3.3.2 ANN modeling
3.3.3 ANN-GA and ANN-PSO modeling optimization
3.3.4 Recycling ability
3.4 Experimental results
3.4.1. BP-ANN model
3.4.2. Predicting the MB decontamination efficiency by CCD, ANN-PSO, and ANN-GA
3.5 Adsorption kinetics
3.6 Adsorption isotherm
3.7. Thermodynamics study
3.8. Regeneration of rGO/Fe/Co nanohybrids
3.9. Summary
4. Study on photodegradation of methyl orange by mesoporous Fe3O4/rGO/N-F codoped TiO2 nanocomposites
4.1 Preparation of dye solution
4.2. Photocatalytic degradation of MO under ultraviolet light
4.3. Recycling ability
4.4. Experimental design
4.4.1. Box-Behnken design
4.4.2. Artificial Neural Network
4.4.3. Optimization Using ANN-GA and ANN-PSO Models
4.5. Experimental Results
4.5.1. Box-Behnken analysis
4.5.2. BP-ANN Model
4.5.4. Comparison among analysis of variance, GBRT, Garson method and RF
4.5.5. Comparison between experimental results and predicted values of RBF
4.6. Kinetics
4.7. Recyclability of Fe3O4/rGO/N-F codoped TiO2 nanocomposites
4.8. Summary
5. Conclusion
6. Further Prospects
参考文献
附录
致谢
声明
贵州师范大学;
