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氧化锰基材料催化臭氧氧化酚类混合污染物的活性物种及反应路径研究

摘要第5-7页
Abstract第7-9页
1. Introduction第19-42页
    1.1 Water pollution and phenolic compounds contained wastewater第19-20页
    1.2 Phenolic compounds as pollutants第20-21页
    1.3 Treating method for phenols contained wastewater第21-26页
        1.3.1 Biological Treatments第21-22页
        1.3.2 Physical Treatments第22-24页
        1.3.3 Chemical Treatments第24-26页
    1.4 Ozonation第26-32页
    1.5 Catalytic ozonation第32-40页
        1.5.1 Homogeneous catalytic ozonation第32-33页
        1.5.2 Heterogeneous catalytic ozonation第33-37页
        1.5.3 Manganese based polymorphs and composites materials第37-40页
    1.6 Goal第40-41页
    1.7 Thesis Stracture第41-42页
2. Materials synthesis and characterization第42-57页
    2.1 Matrials and catalyst preparation methods第42-48页
        2.1.1 Materials第42-44页
        2.1.2 Catalyst preparation methods第44-48页
    2.2 Catayst structure characterization第48-56页
        2.2.1 X-ray diffraction(XRD)第49-50页
        2.2.2 Scanning electron microscopy(SEM)第50-51页
        2.2.3 Transmission electron microscopy(TEM)第51-52页
        2.2.4 Energy dispersed x-ray spectroscopy(EDS)第52页
        2.2.5 Inductively coupled plasma optical emission spectrometry(ICP)第52页
        2.2.6 N_2 physical adsorption第52-53页
        2.2.7 Attenuated total reflectance Fourier transforms infrared spectroscopy (ATR-FTIR)第53-54页
        2.2.8 Electron paramagnetic resonance(EPR)第54页
        2.2.9 Cyclic Voltammetry(CV)第54-55页
        2.2.10 Point of zero charge(pH_(pzc))第55页
        2.2.11 Average oxidation state (AOS)第55-56页
    2.3 Catalytic ozonation第56-57页
3. Synthesis of different phases of MnO_2 and their activities for 4-NP ozonation第57-70页
    3.1 Synthesis and characterization第58-61页
        3.1.1 Synthesis of α-,β-,δ-,γ-, λ-and ε-MnO_2第58-60页
        3.1.2 Characterization of α-, β-,δ-,γ-,λ- and ε-MnO_2第60页
        3.1.3 Catalytic activity test第60-61页
    3.2 Results and discussion第61-69页
        3.2.1 p-nitrophenol degradation with MnO_2第65-67页
        3.2.2 Reactive species and reaction mechanism第67-69页
    3.3 Summary第69-70页
4. Preparation of high surface area mesoporous α-MnO_2 for catalytic ozonation of 4-NP第70-81页
    4.1. Catalyst synthesis第71-72页
        4.1.1 Catalyst Characterization第72页
        4.1.2 p-nitrophenol degradation第72页
    4.2 Results and discussion第72-80页
        4.2.1 Materials Characterization第72-75页
        4.2.2 Catalytic degradation of 4-NP第75-76页
        4.2.3 Impact of ozone dosage第76-77页
        4.2.4 Catalytic stability第77-78页
        4.2.5 Reaction mechanism第78-80页
    4.3 Summary第80-81页
5. Synthesis of different valences of MnO_x and catalytic ozoantion of phenolic mixture第81-97页
    5.1. Materials and methods第82-84页
        5.1.1 Synthesis of MnO_2, Mn_2O_3 and Mn_3O_4第82-83页
        5.1.2 Characterization of MnO_2, Mn_2O_3 and Mn_3O_4第83页
        5.1.3 Catalytic activity experiment第83-84页
    5.2 Results and discussion第84-96页
        5.2.1 Materials characterization第84-86页
        5.2.2 Mixture of phenolic compounds degradation第86-87页
        5.2.3 Phenol degradation第87-89页
        5.2.4 p-chlorophenol degradation第89页
        5.2.5 p-cresol degradation第89-90页
        5.2.6 TOC removal phenolic mixture第90-91页
        5.2.7 Reaction kinetics in ozonation and catalytic ozonation第91-92页
        5.2.8 The interaction of phenols in the mixed solution第92-93页
        5.2.9 Reactive species and attacking patterns第93-96页
    5.3 Summary第96-97页
6. Phenolic mixture degradation with Fe_3O_4/MnO_2 composite and degradation mechanism第97-119页
    6.1 Materials and methods第98-101页
        6.1.1 Synthesis of MnO_2,Fe_3O_4 and Fe_3O_4/MnO_2第99-100页
        6.1.2 Characterization of MnO_2, Fe_3O_4 and Fe_3O_4/MnO_2第100页
        6.1.3 Catalytic activity experiment第100-101页
    6.2 Results and discussion第101-110页
        6.2.1 Structural characterization of catalysts第101-105页
        6.2.2 Catalytic ozonation of phenolic mixture第105-107页
        6.2.3 Effective pH for stability of catalyst第107-108页
        6.2.4 Catalyst activity for phenolic mixture第108-110页
    6.3 Reaction mechanism of Fe_3O_4/MnO_2 catalytic ozonation第110-118页
        6.3.1 ATR-FTIR第110-111页
        6.3.2 CV第111-113页
        6.3.3 Quenching Experiments第113-115页
        6.3.4 Reaction pathway of phenolic mixture第115-118页
    6.4 Summary第118-119页
7. Conclusions and prospects第119-121页
    7.1 General conclusions第119-120页
    7.2 Prospects第120-121页
List of abbreviations第121-122页
REFERENCES第122-147页
CURRICULAM VITA第147-151页
ACKNOWLEDGEMENTS第151页

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