Fabrication of Metal Vanadates（M x V y O z ,M=Bi,Cu）and Silv
发布时间：2020-12-15 11:38
地球上最丰富的能源是太阳光。利用太阳能进行绿色能源生产和环境修复,从根本上解决了能源安全和环境污染两大难题。光电化学（PEC）是一种借助半导体材料,将太阳光转化为可储存的氢燃料的水分解技术,是一种温和、绿色、可再生的现代的技术。另一方面,尽管能源危机愈演愈烈,但环境污染问题的日益加剧又是当前人类生存面临的又一大威胁。众多的环境污染中,水污染严重影响着地球上人类的日常活动,造成了严重的经济损失。因此利用可以吸收太阳光的半导体净化废水,是一种很有前景的污水处理技术。太阳能制氢和废水处理新技术商业化的瓶颈在于其制造成本。PEC技术和废水处理系统的成本主要取决于所使用的前驱体材料和制造方法。尽管一些低成本材料在太阳能水分解和废水处理方面显示出不错的活性和稳定性,但其制备方法复杂,价格昂贵以及无法大规模使用。在本文中,我们介绍了一种新颖且高效的原位燃烧方法,制备了具有低成本的三元氧化物材料MxVyOz（M=Bi,Cu）薄层光电极和新型多功能（PAN）/AgBr/Ag静电纺丝纤维膜用于光催化以及废水处理领域。首先,我们利用原位燃烧方法制备了钒酸铋（BiVO4）光阳极。燃烧过程中的放热反应可以加速溶...
【文章来源】：山东大学山东省 211工程院校 985工程院校 教育部直属院校
【文章页数】：157 页
【学位级别】：博士
【文章目录】：
Acknowledgements
List of abbreviations
ABSTRACT
Chinese Abstract （摘要）
Chapter #1 Introduction & research background
1.1 Energy crisis and environmental pollution
1.2 Harvesting solar light for hydrogen production from water
1.2.1 Hydrogen as an alternative to fossil fuels
1.2.2 Water as a green and abundant source of hydrogen
1.2.3 Electrochemical （EC） water splitting
1.2.4 Photocatalytic （PC） water splitting
1.2.5 Photoelectrochemical （PEC） water splitting
xVyO2 based photoelectrodes for PEC water splitting"> 1.2.6 Metal vanadate MxVyO2 based photoelectrodes for PEC water splitting
1.3 Harvesting solar light for wastewater treatment
1.3.1 Water scarcity
1.3.2 Types of water pollutants
1.3.3 Waste water treatment systems
1.3.4 Photocatalytic decontamination of wastewater
1.4 References
Chapter #2 An in-situ combustion method for scale-up fabrication of BiV04 photoanodes withenhanced long-term photostability for unassisted solar water splitting
2.1 Introduction
2.2 Experimental section
2.2.1 Materials
2.2.2 Characterization
4 and MOD-BiVO4 photoanodes"> 2.2.3 Fabrication of the COM-BiVO4 and MOD-BiVO4 photoanodes
4 photoanodes"> 2.2.4 Deposition of cocatalysts on combustion processed COM-BiVO4 photoanodes
2.2.5 Photoelectrochemical measurements
2.2.6 Tandem design and side-by-side design of the PEC-PV cell
2.2.7 Fabrication of a PEC-PV device
2.2.8 Calculations
2.3 Results and discussions
4 photoanodes"> 2.3.1 Combustion synthesis of the BiVO4 photoanodes
2.3.2 Discussion of the combustion process and a comparison with the MOD-preparedsample
4 photoanodes for the oxidation ofsulfite"> 2.3.3 Photoelectrochemical performance of the BiVO4 photoanodes for the oxidation ofsulfite
4photoanode and their long-term photostability for oxygen evolution"> 2.3.4 Cocatalyst deposition, scale-up fabrication of the combustion processed BiVO4photoanode and their long-term photostability for oxygen evolution
2.3.5 A PEC-PV cell for unassisted solar water splitting
2.4 Conclusions
2.5 References
xVyOx （β-Cu2V2O7 and γ-Cu3V2O8） photoanodes filmsfor photoelectrochemical water splitting">Chapter #3 Facile preparation of two efficient CuxVyOx （β-Cu2V2O7 and γ-Cu3V2O8） photoanodes filmsfor photoelectrochemical water splitting
3.1 Introduction
3.2 Experimental
3.2.1 Materials
xVyOz photoanodes"> 3.2.2 Preparation of CuxVyOz photoanodes
3.2.3 Characterization
3.2.4 Photoelectrochemical measurements
3.3 Results and discussions
3.3.1 Synthesis, micro-electronic structure and physiochemical characterization
3V2O8 and γ-Cu2V2O7 photoanodes"> 3.3.2 PEC water splitting performances of γ-Cu3V2O8 and γ-Cu2V2O7 photoanodes
3.4 Conclusions
3.5 References
Chapter #4 Efficient decontamination of multi-component wastewater by hydrophilic electrospunPAN/AgBr/Ag fibrous membrane
4.1 Introduction
4.2 Experimental
4.2.1 Fabrication of PAN/AgBr/Ag fibrous membranes
4.2.2 Characterization
4.2.3 Photocatalytic activity
4.2.4 Antibacterial test
4.2.5 Filtration performance
4.2.6 Computational details
4.3 Results and discussions
4.3.1 Physicochemical characterization and electronic structure of the PAN/AgBr/Agfibrous membrane
4.3.2 Photocatalysis, sterilization and filtration properties of PAN/AgBr/Ag fibrousmembrane
4.3.3 Overall performance of PAN/AgBr/Ag fibrous membrane towards simulatedwastewater
4.4 Conclusions
4.5 References
Conclusions
Innovations and limitations
Publications
学位论文评阅及答辩情况表
本文编号：2918202
【文章来源】：山东大学山东省 211工程院校 985工程院校 教育部直属院校
【文章页数】：157 页
【学位级别】：博士
【文章目录】：
Acknowledgements
List of abbreviations
ABSTRACT
Chinese Abstract （摘要）
Chapter #1 Introduction & research background
1.1 Energy crisis and environmental pollution
1.2 Harvesting solar light for hydrogen production from water
1.2.1 Hydrogen as an alternative to fossil fuels
1.2.2 Water as a green and abundant source of hydrogen
1.2.3 Electrochemical （EC） water splitting
1.2.4 Photocatalytic （PC） water splitting
1.2.5 Photoelectrochemical （PEC） water splitting
xVyO2 based photoelectrodes for PEC water splitting"> 1.2.6 Metal vanadate MxVyO2 based photoelectrodes for PEC water splitting
1.3 Harvesting solar light for wastewater treatment
1.3.1 Water scarcity
1.3.2 Types of water pollutants
1.3.3 Waste water treatment systems
1.3.4 Photocatalytic decontamination of wastewater
1.4 References
Chapter #2 An in-situ combustion method for scale-up fabrication of BiV04 photoanodes withenhanced long-term photostability for unassisted solar water splitting
2.1 Introduction
2.2 Experimental section
2.2.1 Materials
2.2.2 Characterization
4 and MOD-BiVO4 photoanodes"> 2.2.3 Fabrication of the COM-BiVO4 and MOD-BiVO4 photoanodes
4 photoanodes"> 2.2.4 Deposition of cocatalysts on combustion processed COM-BiVO4 photoanodes
2.2.5 Photoelectrochemical measurements
2.2.6 Tandem design and side-by-side design of the PEC-PV cell
2.2.7 Fabrication of a PEC-PV device
2.2.8 Calculations
2.3 Results and discussions
4 photoanodes"> 2.3.1 Combustion synthesis of the BiVO4 photoanodes
2.3.2 Discussion of the combustion process and a comparison with the MOD-preparedsample
4 photoanodes for the oxidation ofsulfite"> 2.3.3 Photoelectrochemical performance of the BiVO4 photoanodes for the oxidation ofsulfite
4photoanode and their long-term photostability for oxygen evolution"> 2.3.4 Cocatalyst deposition, scale-up fabrication of the combustion processed BiVO4photoanode and their long-term photostability for oxygen evolution
2.3.5 A PEC-PV cell for unassisted solar water splitting
2.4 Conclusions
2.5 References
xVyOx （β-Cu2V2O7 and γ-Cu3V2O8） photoanodes filmsfor photoelectrochemical water splitting">Chapter #3 Facile preparation of two efficient CuxVyOx （β-Cu2V2O7 and γ-Cu3V2O8） photoanodes filmsfor photoelectrochemical water splitting
3.1 Introduction
3.2 Experimental
3.2.1 Materials
xVyOz photoanodes"> 3.2.2 Preparation of CuxVyOz photoanodes
3.2.3 Characterization
3.2.4 Photoelectrochemical measurements
3.3 Results and discussions
3.3.1 Synthesis, micro-electronic structure and physiochemical characterization
3V2O8 and γ-Cu2V2O7 photoanodes"> 3.3.2 PEC water splitting performances of γ-Cu3V2O8 and γ-Cu2V2O7 photoanodes
3.4 Conclusions
3.5 References
Chapter #4 Efficient decontamination of multi-component wastewater by hydrophilic electrospunPAN/AgBr/Ag fibrous membrane
4.1 Introduction
4.2 Experimental
4.2.1 Fabrication of PAN/AgBr/Ag fibrous membranes
4.2.2 Characterization
4.2.3 Photocatalytic activity
4.2.4 Antibacterial test
4.2.5 Filtration performance
4.2.6 Computational details
4.3 Results and discussions
4.3.1 Physicochemical characterization and electronic structure of the PAN/AgBr/Agfibrous membrane
4.3.2 Photocatalysis, sterilization and filtration properties of PAN/AgBr/Ag fibrousmembrane
4.3.3 Overall performance of PAN/AgBr/Ag fibrous membrane towards simulatedwastewater
4.4 Conclusions
4.5 References
Conclusions
Innovations and limitations
Publications
学位论文评阅及答辩情况表
本文编号：2918202
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