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石墨烯负载零价纳米铁去除水中重金属的研究

ABBREVIATIONS第6-7页
中文摘要第7-9页
Abstract第9-10页
1. Introduction第11-32页
    1.1. Hazards of lead and cadmium第11-12页
    1.2. Removal methods of Pb(Ⅱ) and Cd(Ⅱ)第12-14页
    1.3. Optimization of removal processes第14-25页
        1.3.1. Orthogonal design第14-15页
        1.3.2. Response surface methodology第15-17页
        1.3.3. Uniform design第17-18页
        1.3.4. Artificial neural networks第18-25页
    1.4. Application of ANN in the optimization of pollutants removal第25-30页
        1.4.1. Nutrients removal第25-26页
        1.4.2. Heavy metals removal第26-28页
        1.4.3. POPs removal第28-29页
        1.4.4. Other pollutants removal第29-30页
    1.5. Main objectives of the present study第30-32页
2. Preparation of nZVI, GO and nZVI/rGO第32-44页
    2.1. Experimental section第32-34页
        2.1.1. Experimental materials第32页
        2.1.2. Experimental instruments第32页
        2.1.3. Preparation of graphene oxide第32页
        2.1.4. Preparation of nanoscale zero-valent iron第32-33页
        2.1.5. Preparation of nZVI/rGO composites第33页
        2.1.6. Characterization第33页
        2.1.7. Batch experimental program第33-34页
    2.2. Results and discussion第34-43页
        2.2.1. Characterization of nZVI and nZVI/r GO第34-40页
        2.2.2. Effect of operating parameters on Pb(Ⅱ) removal efficiency第40-41页
        2.2.3. Effect of operating parameters on Cd(Ⅱ) removal efficiency第41-43页
    2.3. Summary第43-44页
3. RSM modeling and optimization第44-60页
    3.1. Results and discussion第45-59页
        3.1.1. Modeling and optimization for the Pb(Ⅱ) removal efficiency第45-52页
        3.1.2. Modeling and optimization for the Cd(Ⅱ) removal efficiency第52-59页
    3.2. Summary第59-60页
4. ANN-GA modeling and optimization第60-70页
    4.1. Results and discussion第61-68页
        4.1.1. Modeling and optimization for the Pb(Ⅱ) removal efficiency第61-64页
        4.1.2. Modeling and optimization for the Cd(Ⅱ) removal efficiency第64-67页
        4.1.3. Comparison of RSM and hybrid ANN-GA第67-68页
    4.2. Summary第68-70页
5. Isotherm, thermodynamic and kinetic studies第70-88页
    5.1. Isotherm study第70-76页
        5.1.1. Isotherm study for the removal of Pb(Ⅱ)第71-74页
        5.1.2. Isotherm study for the removal of Cd(Ⅱ)第74-76页
    5.2. Thermodynamic study第76-78页
        5.2.1. Thermodynamic study for the removal of Pb(Ⅱ)第76-77页
        5.2.2. Thermodynamic study for the removal of Cd(Ⅱ)第77-78页
    5.3. Kinetic study第78-82页
        5.3.1. Kinetic study for the removal of Pb(Ⅱ)第79-80页
        5.3.2. Kinetic study for the removal of Cd(Ⅱ)第80-82页
    5.4. Removal mechanism for the heavy metals第82-86页
        5.4.1. Removal mechanism for Pb(Ⅱ)第82-84页
        5.4.2. Removal mechanism for Cd(Ⅱ)第84-86页
    5.5. Summary第86-88页
6. Conclusion第88-90页
7. Prospects第90-91页
References第91-109页
致谢第109-110页
附录第110-112页

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