Download or read book Spectroscopic Considerations on Molecular Adsorption at the Solid liquid Interface written by Andrew Francis Bowfield and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spectroscopic Studies of Molecules Adsorbed at the Solid liquid Interface written by Susanne Maree Heard and published by . This book was released on 1983 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Infrared Spectroscopic Studies of Adsorption at the Solid Liquid Interface written by K. Marshall and published by . This book was released on 1975 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Infrared Spectroscopic Studies of Adsorption at the Solid liquid Interface written by Kenneth Marshall and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surfactant Adsorption and Surface Solubilization written by Ravi Sharma and published by . This book was released on 1995 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents recent progress in the understanding of competitive adsorption. Describes adsolubilization and adsorption at the solid-liquid interface. Discusses kinetics of adsorption at liquid-liquid interfaces. Examines the structure of adsorbed layers.

Download or read book Adsorption From Solution written by R. H. Ottewill and published by Elsevier. This book was released on 2012-12-02 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Adsorption of Polymers and Surfactants from Solution Onto the Solid liquid Interface written by Alexander Couzis and published by . This book was released on 1992 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spectroscopy and Dynamics of Single Molecules written by and published by Elsevier. This book was released on 2019-08-14 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectroscopy and Dynamics of Single Molecules: Methods and Applications reviews the most recent developments in spectroscopic methods and applications. Spectroscopic techniques are the chief experimental methods for testing theoretical models and research in this area plays an important role in stimulating new theoretical developments in physical chemistry. This book provides an authoritative insight into the latest advances in the field, highlighting new techniques, current applications, and potential future developments An ideal reference for chemists and physicists alike, Spectroscopy and Dynamics of Single Molecules: Methods and Applications is a useful guide for all those working in the research, design, or application of spectroscopic tools and techniques across a wide range of fields. - Includes the latest research on ultrafast vibrational and electronic dynamics, nonlinear spectroscopies, and single-molecule methods - Makes the content accessible to researchers in chemistry, biophysics, and chemical physics through a rigorous multi-disciplinary approach - Provides content edited by a world-renowned chemist with more than 30 years of experience in research and instruction

Download or read book Understanding the Adsorption at Solid Liquid Interface and Its Consequences on Interfacial Phenomena written by Nishad Dhopatkar and published by . This book was released on 2017 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Fifth International Conference on the Spectroscopy of Biological Molecules written by T. Theophanides and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series of Conferences on the Spectroscopy of Biological Molecules aims to stimulate research and development in this area of Science. The relationship between the structure and the biological activity of such materials as proteins, lipids, and nucleic acids is fundamental. The 5th European Conference on the Spectroscopy of Biological Molecules (ECSBM) is held at the Hotel Poseidon Club, Loutraki, Greece, on 5-10 September 1993. The scientific contents are remained the same as in the past conferences. Emphasis is given to vibrational spectroscopy, mainly infrared and Raman applied to the study of structure and dynamics of proteins, nucleic acids, porphyrins, carbohydrates, membranes, etc. Most of the contributions describe molecular dynamics and excitation processes, in particular the electronic-vibrational excitations, which are studied by Fr-Raman, Fourier Transform Infrared (Fr-IR) coupled often with microscopy and chromatography. Contributions also include Fr-Raman and FT-IR instrumentation and new developments in this area, and applications in Biology and Medicine. Furthermore, there is a plenary lecture in Mass Spectrometry and its applications in biomedical analysis, and a session devoted to Nuclear Magnetic Resonance (NMR) and its application in the study of biological molecules. Several contributions are devoted to other methods, such as CD, optical absorption, fluorescence and molecular graphics simulations. This volume of ECSBM contains shon articles by the invited and contributed lectures as well as from the Poster presentations from many European and non-European countries.

Download or read book Study of Adsorption at the Liquid Solid Interface by Spectroscopic Techniques written by M. J. D. Low and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report of a project concerned with the general topic of adsorption at the liquid-solid interface. Publications resulting from the work are: (1) The Fundamental Infrared Spectrum of the Ammonium Ion in Aqueous Solution. (2) Infrared Study of Adsorption in situ at the Liquid/Solid Interface. IV. The Utility of Internal Reflection Techniques. (3) Infrared Study of Adsorption in situ at the Liquid/Solid Interface. V. Adsorption of Octadecanol, Octadecylamine, and Octadecanedioic Acid on Silica, and a Criterion of Considering Competitive Adsorption. (4) Infrared Spectra of Water in Aqueous Solutions Using Internal Reflection Spectroscopy. (5) Quantitative Analysis of Aqueous Nitrite/Nitrate Solution by Infrared Internal Reflectance Spectrometry. (6) Infrared Internal Reflection Spectra of Methanol-Water Mixtures.

Download or read book In situ Spectroscopic Studies of Adsorption at the Electrode and Electrocatalysis written by Shi-Gang Sun and published by Elsevier. This book was released on 2011-08-11 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-Situ Spectroscopic Studies of Adsorption at the Electrode and Electrocatalysis is a new reference on in-situ spectroscopic techniques/applications, fundamentals of electrocatalysis at molecule level, and progresses within electrochemical surface science. Presenting both essential background knowledge at graduate level and original research within the fields of spectroscopy, electrochemistry, and surface science. Featuring 15 chapters by prominent worldwide scholars, based on their recent progress in different aspects of in-situ spectroscopy studies, this book will appeal to a wide audience of scientists. In summary this book is highly suitable for graduates learning basic concepts and advanced applications of in-situ spectroscopy, electrocatalysis and electrode adsorptions.* Written by the most active scientists in the fields of spectroscopy, electrochemistry and surface science* Essential background knowledge for graduate students* A modern reference of cutting-edge scientific research

Download or read book Adsorption from Solution at the Solid liquid Interface written by G. D. Parfitt and published by . This book was released on 1983 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Vibrational Spectroscopy of Competitive Adsorption at a Liquid Solid Interface Using IR Visible Sum Frequency Generation written by J. Miragliotta and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical IR-Visible sum-frequency generation (SFG), a surface vibrational spectroscopy, has been used to study competitive adsorption at a hydroxylated ZrO2 surface in contact with a number of binary solutions. This technique is similar to surface second harmonic generation (SHG) in that it is forbidden (in the dipole approximation) in spatial regions possessing inversion symmetry. Therefore, systems consisting of an interface bound by centrosymmetric media give rise to a nonlinear response which is dominated by that of the interfacial region. In addition to being surface specific, the SFG signal from the liquid/solid interface can be resonantly enhanced when the incident IR laser source used in the generation process is tuned through a vibrational mode in the adsorbed species, provided the mode is both Raman and IR active. This vibrational information allows identification of the adsorbed molecule as well as measurements of surface coverage, molecular orientation, and adsorbate interactions for a number of the two-component liquid systems.

Download or read book Molecular Adsorption at Solid liquid Interfaces Using Self assembled Monolayer Films written by Seok-Won Lee and published by . This book was released on 1999 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Functionalization of Oxide Surfaces Insights Into the Mechanism of Molecular Adsorption at the Solid Liquid Interface written by Paul Schwarz and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biointerface Characterization by Advanced IR Spectroscopy written by C.-M. Pradier and published by Elsevier. This book was released on 2011-09-02 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: "There is an increasing interest in research and applications of biosensors and bio-compatability in relation to environmental protection, food and medical safety, implants, early detection of diseases and pollutant detection. This book describes how to characterise amino acids, protein or bacterial strain adsorption on metal and oxide surfaces by using infrared spectroscopy, in a vacuum, in the air or in an aqueous medium. Features description of the principles, experimental setups and parameter interpretation, and the theory for several advanced IR-based techniques for interface characterisation Contains examples which demonstrate the capacity, potential and limits of the IR techniques Helps finding the most adequate mode of analysis."--Publisher.