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石墨烯负载铁基材料去除水中Hg和Se的研究

摘要第6-7页
Abstract第7-8页
1. Introduction第9-27页
    1.1. Hazards of Hg and Se(Ⅳ)第9-10页
    1.2. Graphene-supported iron-based composites第10-12页
    1.3. Methods of preparation and characterization第12-13页
        1.3.1. Preparation of graphene-supported iron-based composites第12页
        1.3.2. Characterization techniques第12-13页
    1.4. Optimization of removal processes第13-14页
    1.5. Analysis of equilibrium isotherms and adsorption kinetics第14-17页
        1.5.1. Equilibrium isotherms第14-15页
        1.5.2. Removal kinetics第15-17页
    1.6. Application of graphene-supported iron-based composites for the removal ofpollutants第17-23页
        1.6.1. Removal of organic pollutants第17-20页
        1.6.2. Removal of heavy metals第20-23页
    1.7. Regeneration and reusability第23-26页
    1.8. Main objectives of the present study第26-27页
2. Experimental section第27-34页
    2.1. Preparation of graphene-supported iron-based composites第27-29页
        2.1.1. Experimental materials and instruments第27页
        2.1.2. Synthesis of GO, nZVI/rGO and Fe_3O_4/rGO第27-28页
        2.1.3. Characterization第28页
        2.1.4. Batch experimental program第28-29页
    2.2. Results and discussion第29-34页
        2.2.1. Characterization of nZVI/rGO第29页
        2.2.2. Characterization of Fe_3O_4/rGO第29-33页
        2.2.3. Summary第33-34页
3. RSM modeling and optimization第34-39页
    3.1. Results and discussion第35-38页
        3.1.1. Modeling and optimization for the removal of Se(Ⅳ) by nZVI/rGO第35-36页
        3.1.2. Modeling and optimization for the removal of Hg ions by Fe_3O_4/rGO第36-38页
    3.2. Summary第38-39页
4. ANN-GA modeling and optimization第39-49页
    4.1. Results and discussion第41-47页
        4.1.1. Modeling and optimization for the removal of Se(Ⅳ) by nZVI/rGO第41-45页
        4.1.2. Modeling and optimization for the removal of Hg ions by Fe_3O_4/rGO第45-47页
    4.2. Summary第47-49页
5. Isotherm, thermodynamic and kinetic studies第49-62页
    5.1. Isotherm study第49-53页
        5.1.1. Isotherm study for the removal of Se(Ⅳ) by nZVI/rGO第50-51页
        5.1.2. Isotherm study for the removal of the Hg ions by the Fe_3O_4/rGO第51-53页
    5.2. Kinetic study第53-56页
        5.2.1. Kinetic study for the removal of Se(Ⅳ) by nZVI/rGO第54-55页
        5.2.2. Kinetic study for the removal of Hg ions by Fe_3O_4/rGO第55-56页
    5.3. Study of thermodynamic and regeneration第56-58页
        5.3.1. Thermodynamic study第56-57页
        5.3.2. Regeneration study第57-58页
    5.4. Removal mechanism for the heavy metals第58-60页
        5.4.1. Removal mechanism for Se(Ⅳ)第58页
        5.4.2. Removal mechanism for Hg ions第58-60页
    5.5. Summary第60-62页
6. Conclusion第62-64页
7. Prospects第64-65页
References第65-76页
致谢第76-77页
附录第77-79页

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