Synthesis And Characterization Of Some Nanostructured Materials For Visible Light Driven Photo Processes
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Synthesis And Characterization Of Some Nanostructured Materials For Visible Light Driven Photo Processes
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Author : Rania Elhadi Adam
language : en
Publisher: Linköping University Electronic Press
Release Date : 2020-03-18
Synthesis And Characterization Of Some Nanostructured Materials For Visible Light Driven Photo Processes written by Rania Elhadi Adam and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-18 with categories.
Nanostructured materials for visible light driven photo-processes such as photodegradation of organic pollutants and photoelectrochemical (PEC) water oxidation for hydrogen production are very attractive because of the positive impact on the environment. Metal oxides-based nanostructures are widely used in these photoprocesses due to their unique properties. But single nanostructured metal oxide material might suffer from low efficiency and instability in aqueous solutions under visible light. These facts make it important to have an efficient and reliable nanocomposite for the photo-processes. The combination of different nanomaterials to form a composite configuration can produce a material with new properties. The new properties which are due to the synergetic effect, are a combination of the properties of all the counterparts of the nanocomposite. Zinc oxides (ZnO) have unique optical and electrical properties which grant it to be used in optoelectronics, sensors, solar cells, nanogenerators, and photocatalysis activities. Although ZnO absorbs visible light from the sun due to the deep level band, it mainly absorbs ultraviolet wavelengths which constitute a small portion of the whole solar spectrum range. Also, ZnO has a problem with the high recombination rate of the photogenerated electrons. These problems might reduce its applicability to the photo-process. Therefore, our aim is to develop and investigate different nanocomposites materials based on the ZnO nanostructures for the enhancement of photocatalysis processes using the visible solar light as a green source of energy. Two photo-processes were applied to examine the developed nanocomposites through photocatalysis: (1) the photodegradation of organic dyes, (2) PEC water splitting. In the first photo-process, we used the ZnO nanoparticles (NPs), Magnesium (Mg)-doped ZnO NPs, and plasmonic ZnO/graphene-based nanocomposite for the decomposition of some organic dyes that have been used in industries. For the second photo-process, ZnO photoelectrode composite with different silver-based semiconductors to enhance the performance of the ZnO photoelectrode was used for PEC reaction analysis to perform water splitting. The characterization and photocatalysis experiment results showed remarkable enhancement in the photocatalysis efficiency of the synthesized nanocomposites. The observed improved properties of the ZnO are due to the synergetic effects are caused by the addition of the other nanomaterials. Hence, the present thesis attends to the synthesis and characterization of some nanostructured materials composite with ZnO that are promising candidates for visible light-driven photo-processes.
Nanostructured Materials For Visible Light Photocatalysis
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Author : Arpan Kumar Nayak
language : en
Publisher: Elsevier
Release Date : 2021-10-10
Nanostructured Materials For Visible Light Photocatalysis written by Arpan Kumar Nayak and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-10 with Technology & Engineering categories.
Nanostructured Materials for Visible Light Photocatalysis describes the various methods of synthesizing different classes of nanostructured materials that are used as photocatalysts for the degradation of organic hazardous dyes under visible light irradiation. The first three chapters include a general introduction, basic principles, mechanisms, and synthesis methods of nanomaterials for visible light photocatalysis. Recent advances in carbon, bismuth series, transition metal oxide and chalcogenides-based nanostructured materials for visible light photocatalysis are discussed. Later chapters describe the role of phosphides, nitrides, and rare earth-based nanostructured-based materials in visible light photocatalysis, as well as the characteristics, synthesis, and fabrication of photocatalysts. The role of doping, composites, defects, different facets, morphology of nanostructured materials and green technology for efficient dye removal under visible-light irradiation are also explored. Other topics covered include large-scale production of nanostructured materials, the challenges in present photocatalytic research, the future scope of nanostructured materials regarding environmental hazard remediation under visible light, and solar light harvesting. This book is a valuable reference to researchers and enables them to learn more about designing advanced nanostructured materials for wastewater treatment and visible-light irradiation. - Covers all the recent developments of nanostructured photocatalytic materials - Provides a clear overview of the mechanism of visible light photocatalysis and the controlled synthesis of nanostructured materials - Assesses the major challenges of creating visible light photocatalysis systems at the nanoscale
Proceedings Of 11th International Conference On Advanced Materials Processing 2017
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Author : ConferenceSeries
language : en
Publisher: ConferenceSeries
Release Date :
Proceedings Of 11th International Conference On Advanced Materials Processing 2017 written by ConferenceSeries and has been published by ConferenceSeries this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
September 7-8 2017 Edinburgh, Scotland Key Topics : Advanced Materials Engineering, Advanced Ceramics and Composite Materials, Polymers Science and Engineering, Advancement in Nanomaterials Science And Nanotechnology, Metals, Metallurgy and Materials, Optical, Electronic and Magnetic Materials, Advanced Biomaterials, Bio devices & Tissue Engineering, Materials for Energy application& Energy storage, Carbon Based Nanoscale Materials, Entrepreneurs Investment Meet, Materials Processing and characterization, Processing and Fabrication of Advanced Materials, Emerging Areas of Materials Science, Materials Based Engineering Design and Control, Materials Engineering and Performance, Materials Science and Engineering, Needs, Priorities and Opportunities For Materials, Material Properties at High Temperature Applications, Coatings and Surface Engineering, Functional Materials, Materials For Engineering and Environmental Sustainability,
Photocatalytic Semiconductors
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Author : Aracely Hernández-Ramírez
language : en
Publisher: Springer
Release Date : 2014-11-17
Photocatalytic Semiconductors written by Aracely Hernández-Ramírez and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-17 with Science categories.
This critical volume examines the different methods used for the synthesis of a great number of photocatalysts, including TiO2, ZnO and other modified semiconductors, as well as characterization techniques used for determining the optical, structural and morphological properties of the semiconducting materials. Additionally, the authors discuss photoelectrochemical methods for determining the light activity of the photocatalytic semiconductors by means of measurement of properties such as band gap energy, flat band potential and kinetics of hole and electron transfer. Photocatalytic Semiconductors: Synthesis, Characterization and Environmental Applications provide an overview of the semiconductor materials from first- to third-generation photocatalysts and their applications in wastewater treatment and water disinfection. The book further presents economic and toxicological aspects in the production and application of photocatalytic materials.
Research Anthology On Synthesis Characterization And Applications Of Nanomaterials
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Author : Management Association, Information Resources
language : en
Publisher: IGI Global
Release Date : 2021-03-19
Research Anthology On Synthesis Characterization And Applications Of Nanomaterials written by Management Association, Information Resources and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-19 with Technology & Engineering categories.
The use of nanotechnologies continues to grow, as nanomaterials have proven their versatility and use in many different fields and industries within the scientific profession. Using nanotechnology, materials can be made lighter, more durable, more reactive, and more efficient leading nanoscale materials to enhance many everyday products and processes. With many different sizes, shapes, and internal structures, the applications are endless. These uses range from pharmaceutics to materials such as cement or cloth, electronics, environmental sustainability, and more. Therefore, there has been a recent surge of research focused on the synthesis and characterizations of these nanomaterials to better understand how they can be used, their applications, and the many different types. The Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials seeks to address not only how nanomaterials are created, used, or characterized, but also to apply this knowledge to the multidimensional industries, fields, and applications of nanomaterials and nanoscience. This includes topics such as both natural and manmade nanomaterials; the size, shape, reactivity, and other essential characteristics of nanomaterials; challenges and potential effects of using nanomaterials; and the advantages of nanomaterials with multidisciplinary uses. This book is ideally designed for researchers, engineers, practitioners, industrialists, educators, strategists, policymakers, scientists, and students working in fields that include materials engineering, engineering science, nanotechnology, biotechnology, microbiology, drug design and delivery, medicine, and more.
Concepts Of Semiconductor Photocatalysis
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Author : Mohammed Muzibur Rahman
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-12-18
Concepts Of Semiconductor Photocatalysis written by Mohammed Muzibur Rahman and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-18 with Science categories.
This book "Concepts of Semiconductor Photocatalysis" contains recent research on the preparation, characterization, and potential applications of the semiconductor photocatalyst. This research is promising and has received a lot of interest in the last few decades. The book covers advanced topics on the optical, physical, structural, and electro-catalysis and photo-catalysis applications. Development of new and noble efficient technology is pointing researchers toward the safe, facile, non-toxic, eco-friendly route of synthesis-to-applications, which can be used for manufacture at a large scale. This book presents an overview of the current photocatalyst fundamental theory, substantial applications, and use of the research worldwide. It is an important book for research organizations, government research-centers, academic libraries, and R
Graphene Based Photocatalysts For Hydrogen Production And Environmental Remediation
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Author : Muhammad Nihal Naseer
language : en
Publisher: Springer Nature
Release Date : 2024-09-27
Graphene Based Photocatalysts For Hydrogen Production And Environmental Remediation written by Muhammad Nihal Naseer and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-09-27 with Science categories.
This book delves into the cutting-edge applications of graphene-based photocatalysts, unveiling their immense potential in addressing two critical global challenges: sustainable hydrogen production and environmental remediation. Through insightful analysis of the state of the art, the book highlights the remarkable capabilities of these innovative materials in harnessing the power of light to drive chemical reactions. By exploring the synthesis, characterization, and mechanisms of graphene-based photocatalysts, the book provides knowledge not only about the fundamental concepts but also recent advancements in water splitting for hydrogen generation, as well as the degradation of persistent organic pollutants and greenhouse gases. With its extensive coverage and interdisciplinary approach, this resource is tailored for a diverse readership, including materials scientists, chemists, photocatalysis experts, environmental engineers, and professionals working in the fields of renewable energy, water treatment, and environmental remediation.
Photo Catalytic Control Technologies Of Flue Gas Pollutants
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Author : Jiang Wu
language : en
Publisher: Springer
Release Date : 2018-09-20
Photo Catalytic Control Technologies Of Flue Gas Pollutants written by Jiang Wu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-20 with Science categories.
This book introduces the theory and applications of nanometer photocatalysis, and it briefly presents the concept of photocatalysts, photocatalytic reaction mechanisms and kinetics, and photocatalytic reactor design. In addition, the use of photocatalysis in the control of flue-gas pollutants is discussed in detail. The book also describes how a photocatalytic reactor is designed and implemented to evaluate the photocatalytic oxidation capacity of different photocatalysts on elemental mercury in a simulated flue gas. After that, the effect of photocatalysts on the SO2, NOx and Hg removal in the flue gas is studied. Photocatalytic cleaning technology can be applied not only in gas pollutant cleaning at power plants, but also in wastewater purification. Readers gain a comprehensive understanding of possible mercury emission control methods and the industrial applications of these technologies.
Semiconductor Photocatalysis
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Author : Wenbin Cao
language : en
Publisher: BoD – Books on Demand
Release Date : 2016-08-24
Semiconductor Photocatalysis written by Wenbin Cao and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-24 with Science categories.
Photocatalysis is a hot topic because it is an environmentally friendly approach toward the conversion of light energy into chemical energy at mild reaction environments. Also, it is well applied in several major areas such as water splitting, bacterial inactivation, and pollutants elimination, which is a possible solution to energy shortage and environmental issues. The fundamental knowledge and the frontier research progress in typical photocatalytic materials, such as TiO2-based and non-TiO2-based photocatalysts, are included in this book. Methods to improve the photocatalytic efficiency and to provide a hint for the rational design of the new photocatalysts are covered.
Process Systems Engineering
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Author : Edwin Zondervan
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2022-10-03
Process Systems Engineering written by Edwin Zondervan and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-03 with Science categories.
Process systems engineering (PSE) is a discipline that delivers tools for guided decision-making in the development of new processes and products. Proven successful in the pharmaceutical-, food- and water sectors, it has also breached the field of energy systems. The future energy systems aim to be more efficient, cost-effective, environmentally benign, and interconnected. The design and operation is extremely challenging for decision-makers, engineers, and scientists and here lies a crucial role for the process systems engineer.