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Author: Materials Research Society. Meeting
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 296
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Book Description
The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners. This book studies the effect of nanometer-scale structure and confinement on degradation processes and analyzes the experimental and theoretical approaches used to estimate the lifetime of nanostructured and nanoconfined materials in various environments.
Author: Materials Research Society. Meeting
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 296
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Book Description
The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners. This book studies the effect of nanometer-scale structure and confinement on degradation processes and analyzes the experimental and theoretical approaches used to estimate the lifetime of nanostructured and nanoconfined materials in various environments.
Author: Mircea Chipara
Publisher: Cambridge University Press
ISBN: 9781107408913
Category : Technology & Engineering
Languages : en
Pages : 286
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Book Description
As more advanced materials find their way into daily life, a better understanding of degradation processes is required, allowing us to more accurately predict their lifetime and further increase their performance, reliability. While degradation processes are initiated at molecular (subnanometer) scale, the nanostructure and nanoconfinement of materials alter the degradation processes occurring in materials at micron or larger scales, and eventually trigger new degradation routes. This book studies the effect of nanometer-scale structure and confinement on degradation processes and analyzes the experimental and theoretical approaches used to estimate the lifetime of nanostructured and nanoconfined materials in various environments. Various topics are addressed - from electronic, optical, structural, and magnetic nanomaterials to space, chemical, biological and medical applications. There is also an emphasis on the time dependence associated with artificial treatments involving electrical currents, annealing, and irradiation by various sources, such as gamma radiation and ions.
Author: Pardeep Singh
Publisher: Elsevier
ISBN: 0128185996
Category : Technology & Engineering
Languages : en
Pages : 432
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Book Description
Nano-Materials as Photocatalysts for Degradation of Environmental Pollutants: Challenges and Possibilities contains both practical and theoretical aspects of environmental management using the processes of photodegradation and various heterogeneous catalysts. The book's main focus is on the degradation of harmful pollutants, such as petrochemicals, crude oils, dyes, xenobiotic pharmaceutical waste, endocrine disrupting compounds, and other common pollutants. Chapters incorporate both theoretical and practical aspects. This book is useful for undergraduate or university students, teachers and researchers, especially those working in areas of photocatalysis through heterogeneous catalysts. The primary audience for this book includes Chemical Engineers, Environmental Engineers and scientists, scholars working on the management of hazardous waste, scientists working in fields of materials science, and Civil Engineers working on wastewater treatment. Reviews recent trends in the photodegradation of organic pollutants Offers a bibliometric analysis of photocatalysis for environmental abatement Includes many degradation mechanisms of organic pollutants using various catalysts Includes examples on the degradation of organic pollutants from various sources, e.g., pharmaceuticals, dyes, pesticides, etc. Discusses the effect of nanocatalysts on soil, plants and the ecosystem
Author: Rania Elhadi Adam
Publisher: Linköping University Electronic Press
ISBN: 9179298788
Category :
Languages : en
Pages : 107
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Book Description
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.
Author: Mohindar Seehra
Publisher: BoD – Books on Demand
ISBN: 9535133713
Category : Technology & Engineering
Languages : en
Pages : 225
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Book Description
There continues to be a worldwide interest in the size-dependent properties of nanostructured materials and their applications in many diverse fields such as catalysis, sensors, energy conversion processes, and biomedicine to name a few. The eleven chapters of this book written by different researchers include four chapters on the different methods of fabrication of specific materials followed by characterization of their properties, and the remaining seven chapters focusing on the fabrications and applications including three chapters on biomedical applications, two chapters on sensors, one chapter on solar cells, and one chapter on the use of nanoparticles in herbicides. These chapters provide up-to-date reviews useful for current and future researchers in these specific areas.
Author:
Publisher:
ISBN: 9781925823677
Category :
Languages : en
Pages :
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Book Description
A large variety of degradation environments have varying degrees of effect on the properties and performance of polymeric materials. In order to sustain the usefulness of the polymeric materials over longer periods of time, it is of vital importance to understand the various ageing and degradation phenomena taking place when the materials are subjected to different degradation environments. In this respect, the current books presents deep insights into the ageing and degradation processes of various commercially important polymeric nanomaterials. The book is a valuable reference for polymer, chemical and materials engineers, as well as practicing scientists and researchers in both academia and industry. It is also a useful resource for postgraduate university students in chemical, polymer and materials disciplines, along with interdisciplinary streams. For more details, please visit https://centralwestpublishing.com.
Author: Gil Alberto Batista Gonçalves
Publisher: Springer Nature
ISBN: 3030337456
Category : Technology & Engineering
Languages : en
Pages : 311
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Book Description
This book report the advances in the synthesis of new nanomaterials for the remediation of natural waters, groundwaters, and wastewaters. The authors describe synthetic routes for the assembly of different nanomaterials for the removal of contaminants by adsorption, catalytic degradation, and antibacterial activity. The hazardous effects of nanomaterials in aquatic ecosystems are discussed. This book presents the trends in the development of advanced technologies available in the market based on nanomaterials for more efficient water remediation. The authors also discuss sustainable management of water resources according to the new technologies developed and the improved efficiency of remediation processes.
Author: Roberto Comparelli
Publisher: MDPI
ISBN: 3039213814
Category : Science
Languages : en
Pages : 134
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Book Description
Photoactive nanomaterials have been receiving increasing attention due to their potential application in the light-driven degradation of water and gas-phase pollutants. However, to exploit the great potential of photoactive materials and access their properties requires fine-tuning of their size/shape-dependent chemical–physical properties, and on the ability to integrate them in photoreactors or to deposit them onto large surfaces. Therefore, the synthetic approach as well as post-synthesis manipulation could strongly affect the final photocatalytic properties of the nanomaterial. The aim of the present Special Issue is to report on the most recent progress towards the application of photoactive nanomaterials and nanomaterial-based coatings in pollutant degradation, paying particular attention to cases close to real application: scalable synthetic approaches to nanocatalysts, preparation of nanocatalyst-based coatings, degradation of real pollutants and bacterial inactivation, and application in building materials.
Author: Mu. Naushad
Publisher: Springer
ISBN: 3030044777
Category : Science
Languages : en
Pages : 391
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Book Description
This book provides a wide-range exploration on the ongoing research and developmental events in environmental nanotechnology. Emerging nanomaterials and its technology have been known to offer unique advantages and are continually showing promising potential attracting continuous global attention. This work thus discusses experimental studies of various nanomaterials along with their design and applications and with specific attention to chemical reactions and their challenges for catalytic systems. It will make a noteworthy appeal to scientists and researchers working in the field of nanotechnology for environmental sciences.
Author: Shakeel Ahmed
Publisher: Springer Nature
ISBN: 9819705428
Category :
Languages : en
Pages : 535
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Book Description
