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钒酸铋基光催化材料的设计、制备及光催化性能研究

摘要第5-7页
Abstract第7-9页
Chapter 1 Introduction第24-52页
    1.1 Vanadium resources and products in China第24-25页
        1.1.1 Vanadium resources in China第24页
        1.1.2 Vanadium products in China第24-25页
    1.2 Water pollution and energy challenge第25-26页
    1.3 Photocatalysis第26-37页
        1.3.1 Development of photocatalysis第27-28页
        1.3.2 Photocatalytic reactions第28-29页
        1.3.3 Applications第29-30页
        1.3.4 Important aspects of photocatalyst第30-37页
            1.3.4.1 Band gap第30-32页
            1.3.4.2 Crystal structure第32-33页
            1.3.4.3 Size effect第33-34页
            1.3.4.4 Morphology effect第34-35页
            1.3.4.5 Degradation第35-36页
            1.3.4.6 Charge recombination第36-37页
    1.4 Choice of photocatalyst and BiVO_4第37-48页
        1.4.1 Historical background第40页
        1.4.2 Important features of BiVO_4第40-46页
            1.4.2.1 Structural properties第40-42页
            1.4.2.2 Electronic structure第42-44页
            1.4.2.3 Optical properties第44-46页
        1.4.3 Synthesis process of BiVO_4第46-48页
    1.5 Strategy to improve the photocatalytic performance第48-49页
    1.6 Hypothesis第49-50页
    1.7 Objectives第50-52页
Chapter 2 Brief Comparison of Different Methods for Preparing第52-72页
    2.1 Introduction第52-53页
    2.2 Experiment第53-54页
        2.2.1 Co-precipitate method第53页
        2.2.2 Sol-gel method第53页
        2.2.3 Hydrothermal method by using surfactant第53-54页
        2.2.4 Characterization第54页
        2.2.5 Evaluation of photocatalytic activity第54页
    2.3 Results and discussion第54-70页
        2.3.1 Co-precipitate method第54-59页
            2.3.1.1 Structure and morphology characteristics第54-56页
            2.3.1.2 Specific surface areas analysis第56-57页
            2.3.1.3 Optical properties第57-58页
            2.3.1.4 Photocatalytic analysis第58-59页
        2.3.2 Sol-gel method第59-64页
            2.3.2.1 Structure and morphology characteristics第59-61页
            2.3.2.2 Specific surface areas analysis第61页
            2.3.2.3 Optical properties第61-63页
            2.3.2.4 Photocatalytic Analysis第63-64页
        2.3.3 Hydrothermal method by using surfactant第64-70页
            2.3.3.1 Structure and Morphology Characteristics第64-67页
            2.3.3.2 Specific surface areas analysis第67-68页
            2.3.3.3 Optical properties第68页
            2.3.3.4 Photocatalytic analysis第68-70页
    2.4 Conclusions第70-72页
Chapter 3 Surfactant-Free Synthesis of m-BiVO_4 and TheirPhotocatalytic Activity for Dye Degradation第72-94页
    3.1 Introduction第72页
    3.2 Experiment第72-74页
        3.2.1 Hydrothermal method without using surfactant for sphere第72-73页
        3.2.2 Solvothermal method without using surfactant for nanoribbons第73页
        3.2.3 Analysis of hydroxyl radicals第73-74页
        3.2.4 Active species trapping第74页
    3.3 Results and discussion第74-92页
        3.3.1 Microspheres第74-82页
            3.3.1.1 Structure and morphology characteristics第74-78页
            3.3.1.2 Optical properties第78-79页
            3.3.1.3 Photocatalytic analysis第79-82页
        3.3.2 Nanoribbons第82-92页
            3.3.2.1 Structure and morphology characteristics第82-84页
            3.3.2.2 Specific surface areas analysis第84-85页
            3.3.2.3 Optical properties第85-86页
            3.3.2.4 Photocatalytic analysis第86-92页
            3.3.2.5 Possible photocatalytic reaction mechanism第92页
    3.4 Conclusions第92-94页
Chapter 4 Z-Scheem 2D m-BiVO_4 Networks Decorated by g-C_3N_4Nanosheets Heterostructured Photocatalyst第94-114页
    4.1 Introduction第94-95页
    4.2 Experiment第95-97页
        4.2.1 Characterization第96页
        4.2.2 Fabrication of electrodes for photoelectrochemical measurements第96-97页
        4.2.3 Photoelectrochemical water oxidation measurements第97页
    4.3 Results and discussion第97-112页
        4.3.1 Structure and morphology characteristics第97-99页
        4.3.2 Specific surface areas analysis第99-101页
        4.3.3 X-ray photoelectron spectroscopy (XPS)第101-102页
        4.3.4 Optical properties第102-103页
        4.3.5 Degradation of MB第103-107页
        4.3.6 Water oxidation activity measurements第107-108页
        4.3.7 Identification of intermediates and the proposed degradation pathway第108-110页
        4.3.8 Possible photocatalytic reaction mechanism第110-112页
    4.4 Conclusions第112-114页
Chapter 5 Photocatalytic Mechanism and PhotocatalyticPerformance of 3D m-BiVO_4, 3D-3D m-BiVO_4 /rGO and m-BiVO_4/g-C_3N_4 Composite第114-136页
    5.1 Introduction第114-115页
    5.2 Experiment第115-116页
    5.3 Results and discussion第116-134页
        5.3.1 Structure and Morphology Characteristics第116-123页
        5.3.2 Optical properties第123-125页
        5.3.3 Photocatalytic analysis第125-129页
        5.3.4 Water oxidation activity measurements第129-130页
        5.3.5 Identification of intermediates and the proposed degradation pathway第130-132页
        5.3.6 Possible photocatalytic reaction mechanism第132-134页
    5.4 Comparison among photocatalyst under same conditions第134-135页
    5.5 Conclusions第135-136页
Chapter 6 m-BiVO_4 Based Photocatalyst@Support Materials withSuperior Reusability as Photocatalyst第136-154页
    6.1 Introduction第136-137页
    6.2 Experiment第137-138页
        6.2.1 m-BiVO_4/rGO coated@CFC第137页
        6.2.2 m-BiVO_4 hollow sphere coated@carbon fiber第137-138页
        6.2.3 Characterization第138页
    6.3 Results and discussion第138-152页
        6.3.1 m-BiVO_4/rGO coated@CFC第138-141页
            6.3.1.1 Structure and morphology characteristics第138-139页
            6.3.1.2 Photocatalytic analysis第139-141页
        6.3.2 m-BiVO_4 hollow sphere coated@carbon fiber第141-152页
            6.3.2.1 Structure and morphology characteristics第141-142页
            6.3.2.2 Mechanism of coating@carbon fiber第142-145页
            6.3.2.3 Specific surface areas analysis第145页
            6.3.2.4 Optical properties第145-146页
            6.3.2.5 Photocatalytic analysis第146-152页
    6.4 Conclusions第152-154页
Chapter 7 Summary and perspectives第154-158页
    7.1 Summary第154-156页
    7.2 Perspectives第156-158页
List of acronyms and symbols第158-160页
References第160-178页
Acknowledgements第178-180页
Curriculum vitae第180-181页

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