Physical Adsorption At Solid Liquid Interfaces
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Physical Adsorption At Solid Liquid Interfaces
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Author : Rameshbhai Manibhai Patel
language : en
Publisher:
Release Date : 1970
Physical Adsorption At Solid Liquid Interfaces written by Rameshbhai Manibhai Patel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with categories.
Understanding The Adsorption At Solid Liquid Interface And Its Consequences On Interfacial Phenomena
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Author : Nishad Dhopatkar
language : en
Publisher:
Release Date : 2017
Understanding The Adsorption At Solid Liquid Interface And Its Consequences On Interfacial Phenomena written by Nishad Dhopatkar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Adhesion categories.
Physical adsorption at solid-liquid interface is an effective way to dynamically alter the surface properties text/italics{in-situ} and is prevalent in biology, geoscience, biotechnology, catalysis, food processing, agriculture, textiles, coatings, adhesives and lubricants, and cosmetics Over the last century an extensive framework of the thermodynamics and kinetics of adsorption as well as the intermolecular forces that govern the physical interactions between the substrate, solute, and solvent has been established, helping elucidate the structure of adsorbates. However, there lacks an understanding of the connection between the local conformation of the adsorbed molecules and its influence on the macroscopic interfacial phenomena. In this research we have employed vibrational spectroscopy techniques namely the interface-selective non-linear sum frequency generation (SFG) and linear attenuated total reflectance Fourier transform infrared (ATR-FTIR) in conjugation with contact mechanics to develop the molecular level insights into macroscopic phenomena of wetting, adhesion, and sliding friction. We study the interfacial structure of small molecules (surfactants and solvents) as well as macromolecules adsorbed on model surfaces of sapphire (aluminum oxide) and silicone dioxide. Using SFG, we discovered a strongly coordinated ice-like water layer confined between two charged surfaces, under hydration pressures, formed by the adsorption of a cationic surfactant (cetyl trimethyl ammonium bromide, CTAB) on dissimilar hydrophobic surfaces (phenylethyl trichlorosilane, PETS self-assembled monolayer, and polydimethylsiloxane elastomer, PDMS). This strongly coordinated water structure forms past the surfactant concentration needed for a monolayer surface coverage and is observed to reduce the sliding friction. Correlating interface-selective spectroscopy with hydration forces, and their macroscopic manifestation on adhesion and friction requires us to reconsider how we understand water under confinement and its significance in more complicated interfacial processes prevalent in biology, chemistry, and engineering. To investigate the adsorption of a basic polymer (PMMA) on acidic surfaces in carbon tetrachloride (neutral), Chloroform (acidic), and acetone (basic) solvents, we used SFG and ATR-FTIR to build on to the established concept of acid-base interactions that explains limited adsorption from basic and acidic solutions compared to neutral solution due to competitive interactions. We show that besides the differences in adsorbed amount, chains adsorbed from an acidic solvent adopt a flat conformation with a much smaller ratio of segments of loops and tails to trains compared to those adsorbed from a neutral solvent. Surface interaction parameters alone cannot predict the differences in conformation of chains adsorbed from acidic or neutral solvents. Such differences in the static and dynamic conformations have consequences in understanding the exchange kinetics, colloidal stabilization, chromatographic separations, adhesion and friction, and stabilization of nanocomposites. The adsorption of polyelectrolytes driven by Coulombic interactions becomes complicated when mixed with oppositely charged surfactant which modulates the net charge and solubility of polyelectrolytes in water resulting in a characteristic bulk phase diagram. We have investigated the adsorption from pre-mixed solutions of a cationic polysaccharide (PQ10) and the anionic surfactant sodium dodecyl sulfate (SDS), on an amphoteric alumina surface using quartz crystal microbalance with dissipation (QCMD). By tuning the surface charge of the amphoteric alumina, we confirmed the importance of electrostatic interactions on the adsorption on a hydrophilic charged surface, a suggestion that was made earlier solely based on the measurements on negatively charged surfaces. We also directly correlate the bulk phase transitions at the interface adsorption by observing a maximum extent of adsorption on both negatively and positively charged surfaces from a solution corresponding to the maximum turbidity. Using the Voight based viscoelastic model, QCMD also provided information on the viscosity, shear modulus, and thickness of the adsorbed polymeric complex, findings of which were corroborated by underwater atomic force microscopy (AFM) measurements. Shifting gears from adsorption to understanding the polymer thin films surface structure in different environments, we used SFG to observe the surface restructuring of an amphiphilic glassy homopolymer poly(alpha-hydroxy-n-butyl acrylate, PHNB) from hydrophobic to aqueous environment. We observed relative changes in ordering of hydrophobic and hydroxyl pendant groups upon going from air to water at different temperatures showing their impact on wetting of the polymer surface observed by means of dynamic contact angles measurement.
Adsorption Of Inorganics At Solid Liquid Interfaces
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Author : Marc A. Anderson
language : en
Publisher: Ann Arbor Science Publishers
Release Date : 1981
Adsorption Of Inorganics At Solid Liquid Interfaces written by Marc A. Anderson and has been published by Ann Arbor Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Science categories.
Surface Chemistry Of Solid And Liquid Interfaces
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Author : Husnu Yildirim Erbil
language : en
Publisher: Wiley-Blackwell
Release Date : 2006-11-17
Surface Chemistry Of Solid And Liquid Interfaces written by Husnu Yildirim Erbil and has been published by Wiley-Blackwell this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-11-17 with Science categories.
A detailed understanding of the chemistry of surfaces and interfaces is required by many research personnel in the chemical and life science industries, as surfaces and interfaces play a critical role in many of the processes they seek to influence. Surface Chemistry of Solid and Liquid Interfaces provides a concise and easily accessible introduction to this fascinating subject. With a smooth evolution of ideas from familiar physical chemistry principles, the student can develop a sophisticated understanding of the chemistry of surfaces and interfaces. The book is also highly relevant to new researchers in industry and newly emerging nanotechnology field who often encounter surface and interface chemistry and need to be conversant with the principles and investigative tools, without being specialists.
Adsorption At Solid Liquid Interfaces Studied With Surfaces Sensitive Techniques
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Author : Lei Wang
language : en
Publisher:
Release Date : 2016
Adsorption At Solid Liquid Interfaces Studied With Surfaces Sensitive Techniques written by Lei Wang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Adsorption From Solution At The Solid Liquid Interface
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Author : G. D. Parfitt
language : en
Publisher:
Release Date : 1983
Adsorption From Solution At The Solid Liquid Interface written by G. D. Parfitt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Science categories.
Non-electrolytes. Adsorption of small molecules. Adsorption from mixtures of miscible liquids. Adsorption of nonionic surfactants. Adsorption of polymers. Electrolytes. Adsorption of small ions. Adsorption of ionic surfactants. Adsorption of dyes. Adsorption of polyelectrolytes from dilute solution.
Adsorption From Solution
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Author : R. H. Ottewill
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Adsorption From Solution written by R. H. Ottewill and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.
Adsorption From Solution discusses the significance of adsorption behavior in thermodynamic terms, with emphasis on the interplay between enthalpic and entropic contributions to the free energy. This book examines the role of simple models and of elementary thermodynamic and statistical mechanical arguments in relation to the concept of surface phase. Organized into 22 chapters, this book starts with an overview of the theoretical model for the solid/liquid interface. This text then proceeds with a discussion of the general thermodynamic treatment of adsorption from mixed solvents, which is designed to apply in situations where adsorbed species may be regarded as distinct from their bulk counterparts. Other chapters discuss the adsorption from solutions of various interfaces of liquid/gas, liquid/liquid, or liquid/solid. The final chapter deals with the roles of adsorption from solution in controlling other phenomena, such as liquid–liquid displacement, wetting, and the forces between colloidal particles. Physicists, chemists, and materials scientists will find this book extremely useful.
Adsorption From Solutions Of Non Electrolytes
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Author : J. J. Kipling
language : en
Publisher: Academic Press
Release Date : 2013-10-22
Adsorption From Solutions Of Non Electrolytes written by J. J. Kipling and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
Adsorption from Solutions of Non-Electrolytes provides a general discussion of the subject, which has so far been given little or no attention in current textbooks of physical chemistry. A general view of the subject is particularly needed at a time when we wish to see how far it will be possible to use theories of solutions to explain the phenomena of adsorption. The book opens with an introductory chapter on the types of interface, aspects of adsorption from solution, types of adsorption, and classification of systems. This is followed by separate chapters on experimental methods, adsorption at the liquid-solid interface, adsorption from completely miscible and partially liquids, adsorption of gases and solids from solution, adsorption of polymers, and adsorption in multicomponent systems. Subsequent chapters deal with factors influencing competitive adsorption at the liquid-solid interface. adsorption at the liquid-vapor and liquid-liquid interface, kinetics and thermodynamics of adsorption from the liquid phase, the use of columns in adsorption, and use of adsorption from solution to measure surface area.
Surface And Interface Science Volumes 7 And 8
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Author : Klaus Wandelt
language : en
Publisher: John Wiley & Sons
Release Date : 2020-03-30
Surface And Interface Science Volumes 7 And 8 written by Klaus Wandelt and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-30 with Science categories.
In ten volumes, this unique handbook covers all fundamental aspects of surface and interface science and offers a comprehensive overview of this research area for scientists working in the field, as well as an introduction for newcomers. Volume 1: Concepts and Methods Volume 2: Properties of Elemental Surfaces Volume 3: Properties of Composite Surfaces: Alloys, Compounds, Semiconductors Volume 4: Solid-Solid Interfaces and Thin Films Volume 5: Solid-Gas Interfaces I Volume 6: Solid-Gas Interfaces II Volume 7: Liquid and Biological Interfaces Volume 8: Interfacial Electrochemistry Volume 9: Applications of Surface Science I Volume 10: Applications of Surface Science II Content of Volumes 7 & 8: * Probing Liquid/Solid Interfaces at the Molecular Level * Structure and Dynamics of Liquid-Solid Interfaces * Adsorption of Biomolecules * Liquid Surfaces * Surfaces of Ionic Liquids * Superhydrophobicity * Cell Penetrating Peptides Targeting and Distorting Biological Membranes * Theory of Solid/Electrolyte Interfaces * Metal/Electrolyte Interfaces: An Atomic View * X-Ray Spectroscopy at Electro-Catalytic Interfaces * Fundamental Aspects of Electro-Catalysis * Non-Linear Processes at Solid/Liquid Interfaces
Adsorption At Solid Liquid Interfaces
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Author : Bogdan Baranowski
language : en
Publisher:
Release Date : 1997
Adsorption At Solid Liquid Interfaces written by Bogdan Baranowski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.