colloidal metal oxide nanoparticles

Colloidal Metal Oxide Nanoparticles
Author:
Publisher: Elsevier
Release Date: 2019-10-16
Pages: 608
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Colloidal Metal Oxide Nanoparticles: Synthesis, Characterization and Applications is a one-stop reference for anyone with an interest in the fundamentals, synthesis and applications of this interesting materials system. The book presents a simple, effective and detailed discussion on colloidal metal oxide nanoparticles. It begins with a general introduction of colloidal metal oxide nanoparticles, then delves into the most relevant synthesis pathways, stabilization procedures, and synthesis and characterization techniques. Final sections discuss promising applications, including bioimaging, biosensing, diagnostic, and energy applications—i.e., solar cells, supercapacitors and environment applications—i.e., the treatment of contaminated soil, water purification and waste remediation. Provides the most comprehensive resource on the topic, from fundamentals, to synthesis and characterization techniques Presents key applications, including biomedical, energy, electronic and environmental Discusses the most relevant techniques for synthesis, patterning and characterization

Some New Aspects Of Colloidal Systems In Foods
Author: Jafar Milani
Publisher: BoD – Books on Demand
Release Date: 2019-03-20
Pages: 98
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Some New Aspects of Colloidal Systems in Foods is a new book on food emulsions, which provides in-depth coverage of some new aspects of food colloids. The coverage includes confident overviews of theoretical issues as well as descriptions of new techniques and recent colloid research findings. Specific topics include the role of electrostatic and steric forces in the stabilization of food colloids, antioxidants in food emulsions, nanoemulsions, and nanostructured colloids in food science. This book can be used as a specialized text for graduate students and researchers in food science and technology. In addition, it will serve as a reference text for advanced students in chemistry, engineers, biochemists, nutritionists, and analytical chemists in the food industry and research.

Recent Trends In Surface And Colloid Science
Author: Bidyut K. Paul
Publisher: World Scientific
Release Date: 2012
Pages: 350
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Colloid and surface science is a fascinating interdisciplinary field, where modern development and knowledge of physics, chemistry, biology, material science, pharmacy and engineering have been extensively adopted, with ample scope for fundamental research and extensive potential for application. The progress of research in this important field has been remarkable during the last four decades, and it has greatly benefited society. With a summary of recent advances in this multifaceted field, Recent Trends in Surface and Colloid Science provides critical information and presents the basic concepts of organized systems in relation to their practical significance.

Solution Processed Metal Oxide Thin Films For Electronic Applications
Author: Zheng Cui
Publisher: Elsevier
Release Date: 2020-06-11
Pages: 180
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Solution Processed Metal Oxide Thin Films for Electronic Applications discusses the fundamentals of solution processing materials chemistry techniques as they are applied to metal oxide materials systems for key device applications. The book introduces basic information (materials properties, materials synthesis, barriers), discusses ink formulation and solution processing methods, including sol-gel processing, surface functionalization aspects, and presents a comprehensive accounting on the electronic applications of solution processed metal oxide films, including thin film transistors, photovoltaic cells and other electronics devices and circuits. This is an important reference for those interested in oxide electronics, printed electronics, flexible electronics and large-area electronics. Provides in-depth information on solution processing fundamentals, techniques, considerations and barriers combined with key device applications Reviews important device applications, including transistors, light-emitting diodes, and photovoltaic cells Includes an overview of metal oxide materials systems (semiconductors, nanomaterials and thin films), addressing materials synthesis, properties, limitations and surface aspects

Metal Oxide Nanoparticles In Organic Solvents
Author: Markus Niederberger
Publisher: Springer Science & Business Media
Release Date: 2009-09-17
Pages: 217
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Metal Oxide Nanoparticles in Organic Solvents discusses recent advances in the chemistry involved for the controlled synthesis and assembly of metal oxide nanoparticles, the characterizations required by such nanoobjects, and their size and shape depending properties. In the last few years, a valuable alternative to the well-known aqueous sol-gel processes was developed in the form of nonaqueous solution routes. Metal Oxide Nanoparticles in Organic Solvents reviews and compares surfactant- and solvent-controlled routes, as well as providing an overview of techniques for the characterization of metal oxide nanoparticles, crystallization pathways, the physical properties of metal oxide nanoparticles, their applications in diverse fields of technology, and their assembly into larger nano- and mesostructures. Researchers and postgraduates in the fields of nanomaterials and sol-gel chemistry will appreciate this book’s informative approach to chemical formation mechanisms in relation to metal oxides.

Nanoparticles
Author: Vincent M. Rotello
Publisher: Springer Science & Business Media
Release Date: 2004-01
Pages: 284
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

"The book presents a distinctly chemical approach to nanoparticle research. Nanoparticles: Building Blocks for Nanotechnology integrates synthesis, methods and applications to provide an exciting view of nanoparticle science for researchers in the areas of: inorganic, organic, biological, and physical chemistry; materials science; electrical engineering; physics; polymer science; colloid science. It should also appeal to material scientists and physicists who realize the need and benefit of contributions to further develop this field."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved

Adsorption Of MS2 On Oxide Nanoparticles Affects Chlorine Disinfection And Solar Inactivation
Author:
Publisher:
Release Date: 2015
Pages:
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Abstract: Adsorption on colloidal particles is one of the environmental processes affecting fate, transport, viability or reproducibility of viruses. This work studied colloidal interactions (adsorption kinetics and isotherms) between different oxide nanoparticles (NPs) (i.e., TiO2, NiO, ZnO, SiO2, and Al2 O3 ) and bacteriophage, MS2. The results shows that that all oxide NPs exhibited strong adsorption capacity for MS2, except SiO2 NPs, which is supported by the extended Derjaguin and Landau, Verwey and Overbeek (EDLVO) theory. Moreover, the implication of such colloidal interactions on water disinfection is manifested by the observations that the presence of TiO2 and ZnO NPs could enhance MS2 inactivation under solar irradiation, whereas NiO and SiO2 decreased MS2 inactivation. By contrast, all of these oxide NPs were found to mitigate chlorine disinfection against MS2 to different extent, and the shielding effect was probably caused by reduced free chlorine and free MS2 in the solution due to sorption onto NPs. Clearly, there is a pressing need to further understand colloidal interactions between engineered NPs and viruses in water to better improve the current water treatment processes and to develop novel nanomaterials for water disinfection. Graphical abstract: Metal oxide nanoparticles have intriguing colloidal interactions with bacteriophage, which affects viral fate under solar irradiation and chlorine disinfection. Highlights: Adsorption of MS2 toward oxide NPs depended on surface characteristics. MS2 inactivation by solar irradiation was enhanced by TiO2 and ZnO NPs while reduced by other oxides. The presence of oxide NPs reduced the efficacy of chlorine disinfection against MS2.

Nanoparticles
Author: Ramanathan Nagarajan
Publisher: Amer Chemical Society
Release Date: 2008
Pages: 449
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

The book summarizes recent advances in methods to synthesize, stabilize, passivate and functionalize diverse nanoparticles from metals, metal oxides, semiconductors, polymers, organics and biomolecules. A wide range of potential applications with nanoparticles as building blocks are described.

Metal Oxide Nanoparticle Preparation By Pulsed Laser Ablation Of Metallic Targets In Liquid
Author: Valery A. Svetlichnyi
Publisher:
Release Date: 2016
Pages:
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

The basic mechanisms of pulsed laser ablation in liquids (PLAL) as a method for the synthesis of nanoparticles (NPs) were considered. Physical and chemical processes occurring during the PLAL that determine the formation, composition and structure of the nanoparticles obtained are described. The influence of the composition and properties of the target material, the solvent and the characteristics of the laser irradiation on the efficiency of the synthesis of nanoparticles is discussed. Separately, an influence of the absorption and scattering (including nonlinear) of laser radiation in the dispersion of nanoparticles on the primary synthetic processes and secondary transformations inside the colloidal solution is examined. The specificity of the characterization of the colloidal solutions of oxide particles produced by PLAL is highlighted. The most promising practical applications of nanomaterials obtained are identified and the examples of their successful use in catalytic research and biomedicine are provided.

Fabrication And Characterisation Of Multilayer Thin Film Using Self Assembly Of Colloidal Gold And Silica Nanoparticles
Author: Zaheer Abbas Khan
Publisher: GRIN Verlag
Release Date: 2016-06-20
Pages: 108
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Doctoral Thesis / Dissertation from the year 2011 in the subject Materials Science, Asian Insitute of Technology, language: English, abstract: A novel approach of multilayered thin film based on layer-by-layer deposition using colloidal nanoparticles was carried out in this work. The films were made by the self-assembly of oppositely charged metal and dielectric nanoparticles, alternately capped with polymers. Synthesized colloidal suspensions of gold nanoparticles (~20nm) and silica nanoparticles (~30nm) were used as the building blocks for the self-organisation of the films. Capping with PDDA and chitosan was used effectively to control the optical absorption of the surface plasmon resonance peaks of the gold nanoparticles. Using different combinations of layer formation, absorption characteristics in the near-ultraviolet (NUV), green and blue region were controlled through capping and varying the thickness of the film. Capping with chitosan or PDDA reduced the absorption peak of the coated silica nanoparticles in a similar fashion. Peak absorption in the UV range was achieved by assembling bare silica nanoparticles layers onto layers of gold nanoparticles. Transmission color was controlled (less than 1% color distance per added bi-layer) by changing the film thickness. Optical modeling of multilayer thin films constructed with oppositely charged nanoparticles helped us to understand phenomenon such as surface plasmon resonance, absorbance, transmittance and reflectance. Maxwell-Garnett effective medium theory in this case is applied in quasi-static limit to multilayer composite consisting of host material silica and inclusion material gold nanoparticles. Maxwell Garnett optical simulations is correlated with experimental spectra obtained for the thin film composites. The thickness of layers, size and spacing of metal inclusion is varied to alter the optical properties for the required device applications. The multilayered thin film of gold and silica resembles a structure consisting of large charge sheets of metal separated by a dielectric layer. When the applied electric potential reaches a threshold value, it drives the electrons to tunnel through the charge sheets producing a rectification effect. Therefore current-voltage measurements of the multilayer thin films were performed to calculate the threshold voltages. The electrical capacitance in these multilayer devices was modified with the change in thickness of the dielectric layers between two conducting layers and calculated by capacitance-voltage measurements of multilayer stack. [...]

Colloid Process Engineering
Author: Matthias Kind
Publisher: Springer
Release Date: 2015-04-22
Pages: 398
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This book deals with colloidal systems in technical processes and the influence of colloidal systems by technical processes. It explores how new measurement capabilities can offer the potential for a dynamic development of scientific and engineering, and examines the origin of colloidal systems and its use for new products. The future challenges to colloidal process engineering are the development of appropriate equipment and processes for the production and obtainment of multi-phase structures and energetic interactions in market-relevant quantities. The book explores the relevant processes and for controlled production and how they can be used across all scales.

Nano Optics And Near Field Optical Microscopy
Author: Anatoly V. Zayats
Publisher: Artech House
Release Date: 2009
Pages: 361
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This groundbreaking book focuses on near-field microscopy which has opened up optical processes at the nanoscale for direct inspection. Further, it explores the emerging area of nano-optics which promises to make possible optical microscopy with true nanometer resolution. This frontline resource helps you achieve high resolution optical imaging of biological species and functional materials. You also find guidance in the imaging of optical device operation and new nanophotonics functionalities.

Dekker Encyclopedia Of Nanoscience And Nanotechnology
Author: James A. Schwarz
Publisher: CRC Press
Release Date: 2004
Pages: 4014
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Encyclopedia Of Surface And Colloid Science
Author: P. Somasundaran
Publisher: CRC Press
Release Date: 2006
Pages: 6675
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Probing The Internal Environment Of Hollow Metal Oxide Nanoparticles
Author: Noelle Marie Drugan Kamp
Publisher:
Release Date: 2009
Pages: 242
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Near Critical And Supercritical Hydrothermal Flow Synthesis Of Metal Oxide Nanoparticles And Hybrid Metal Oxide Nanoparticles Presenting Clickable Anchors
Author: Daschner de Tercero, Maren
Publisher: KIT Scientific Publishing
Release Date: 2014-11-26
Pages: 298
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

"The continuous hydrothermal flow synthesis of functionalized and non-functionalized nanoparticle dispersions was pursued. Besides improving the understanding of the relationship between process variables and the resulting nanoparticle dispersions, the usability of this process was extended by introducing clickable organic modifiers, a step toward the development of a convenient and versatile process for the synthesis of metal oxide nanoparticles with universal anchors on their surface."--Publisher's website.

Colloidal Nanoparticles In Biotechnology
Author: Abdelhamid Elaissari
Publisher: John Wiley & Sons
Release Date: 2008-05-16
Pages: 450
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Dr. Abdelhamid Elaissari, internationally respected author and researcher, reports on and analyzes a broad range of important findings from new studies on the use of colloidal nanoparticles in biomedical, food, and environmental diagnostics and analyses. Throughout the presentation, the book uses a blend of classical tools, including optical microscopy, atomic force microscopy, microsystems, and microfluidics, to help you take full advantage of colloidal nanoparticles for your own research and applications.

Nanocomposite Structures And Dispersions
Author: Ignac Capek
Publisher: Elsevier
Release Date: 2006-09-19
Pages: 312
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Nanocomposite Structures and Dispersions summarizes the fundamentals and mechanistic approaches in preparation and characterization of colloidal nanoparticles and dispersions, providing the readers a systematic and coherent picture of the field. The book serves as an introduction to the interesting field of nanoscience based on polymer and metal colloidal nanoparticles, and also presents the basic knowledge of polymer colloids preparation. It places a special emphasis on polymer, inorganic and metal nanomaterials classified as nanoparticles, nanocrystals, nanorods, nanotubes, nanobelts, etc. deals with the chemistry of the reaction approaches by which polymer and metal particles are synthesized. The book explores both organic (synthetic and natural) and inorganic materials, as well as their hybrids. It describes in detail terms, definitions, theories, experiments, and techniques dealing with synthesis of polymer and metal particles. It also discusses a variety of synthetic approaches including emulsion, miniemulsion and microemulsion approaches, homogeneous and heterogeneous nucleation approaches under mild and high temperatures. There is also a chapter on modification and passivation of colloidal particles. This book would be of interest to chemical engineers, polymer chemists, organic chemists, colloid chemists, materials scientists and nanotechnologists. Although the text discusses nanoscience and nanotechnology from the viewpoint of a chemist, it would also appeal to those just entering the field and experts seeking information in other sub-fields. Serves as a general introduction for those just entering the field and experts seeking information in other sub-fields Variety of synthetic approaches is described including emulsion, miniemulsion and microemulsion approaches, hogeneous and heterogeneous nucleation approaches under mild and high temperatures Focused on both the organic (synthetic and natural) and inorganic materials, and their hybrids

Design And Understanding Of Selective Catalysts Using Colloidal Nanoparticle Synthesis
Author: Cody James Wrasman
Publisher:
Release Date: 2020
Pages:
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Catalysts are a critical component of the chemical industry that produces products that we rely on every day. A common geometry for industrial catalysts is comprised of metal nanoparticles dispersed on oxide supports. Numerous works have shown how control over the geometry of this catalyst motif can be leveraged to create catalysts with improved catalytic activity, selectivity, and stability. However, traditional catalyst synthesis techniques often do not provide the required control over important catalyst parameters such as nanoparticle size and alloy nanoparticle composition. In the works outlined in this thesis, colloidal synthesis is used to produce highly uniform nanoparticles with precise control over their geometry. First, a seed-mediated colloidal synthetic technique was developed to produce dilute (or single atom) alloy nanoparticles. Electron microscopy, UV-Vis spectroscopy, and X-ray absorption measurements were used to verify the formation of Pd/Au and Pd/Ag alloy nanoparticles with control over the Pd ensemble size down to single atoms. The Pd/Au nanoparticles were then used to carry out selective oxidation of alcohols in the presence of hydrogen and oxygen with attention paid to the impact of Pd ensemble size within Au on activity. It was found that Pd/Au alloy nanoparticles outperformed both pure metals, with the most dilute levels of Pd offering the largest improvement in catalytic activity while maintaining nearly complete selectivity to the desired product. Beyond improving catalytic activity, this work shows how the ability to tune several catalyst parameters independently enables better understanding of catalytic mechanisms. In particular, the mechanism of selective oxidation reactions in which a selective oxidant, likely hydrogen peroxide, is created from a mixture of hydrogen and oxygen over Au and Pd/Au catalysts are described. Through systematic testing, it was demonstrated that while Au nanoparticles need an interface with a metal oxide to produce the selective oxidant, Pd/Au nanoparticles carried out selective oxidation without contact with metal oxides. Furthermore, this work shows that once mobile oxidants are produced, they are able to diffuse through the catalytic bed do different catalytic sites. Beyond selective oxidation, this thesis describes how colloidal Ru nanoparticles can be used to determine the number of sites on an oxide support capable of hosting single metal atoms. This finding has implications for the creation of highly dispersed catalysts that exhibit reaction selectivity unique from nanoparticle catalysts. Despite its ability to create highly uniform catalysts, colloidal synthesis is currently mostly confined to the laboratory scale due to the relatively high cost and small scale at which nanoparticles are produced. While other groups are working to translate batch processes into continuous flow systems, little has been done to address the waste of expensive synthesis solvents that drive up the cost of colloidal nanoparticles. To address solvent waste, this work examines processes for recycling nanoparticle synthesis solvents and demonstrates the potential to produce uniform mono and bimetallic nanoparticles over many reuses. This work opens the door to closed loop processes where the colloidal nanoparticles are produced continuously requiring only metal precursors and a small amount of surfactants. Such a process would allow superior colloidal nanoparticle catalysts developed in the laboratory to be translated to more industrially relevant scales. Together, the projects outlined in this thesis demonstrate the potential of colloidally synthesized nanoparticles to improve the activity of selective catalytic reactions and to uncover mechanistic insights in complex, multi-site transformations. It also provides a scheme for how these and other laboratory scale discoveries can be transferred to industrial application.

Nanoscience And Nanotechnology
Author: Vicki H. Grassian
Publisher: John Wiley & Sons
Release Date: 2008-12-19
Pages: 512
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This comprehensive book covers various aspects of nanoscience and nanotechnology and what is known about the potential environmental and health impacts. Divided into three main sections, the book addresses the toxicity of nanomaterials, fate and transport of nanomaterials in the environment, and occupational health aspects of nanotechonology.