Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 13 of 13 for “"Kinetics of Adsorption"”.
-
AN EXPERIMENTAL STUDY OF THE EFFECTS OF SUBSTRATE POROSITY, MORPHOLOGY, AND FLEXIBILITY ON THE EQUILIBRIUM THERMODYNAMICS AND KINETICS OF ADSORPTION FOR ATOMIC AND MOLECULAR ADSORBATES
<p>Five systems consisting of different sorbate-sorbent combinations were studied using experimental volumetric adsorption techniques. Multiple adsorption isotherms were measured at low temperatures and low pressures for all of the systems studied which included CO2 adsorption on single walled …
-
Adsorption/Desorption Process of Stimuli-Responsive Polymers on Simulated Natural Surfaces Using QCM-D & AFM Analysis
<p>The stimuli-responsive adsorption of polyelectrolytes to biosurfaces provides an important vehicle for development of protective coatings, delivery of therapeutic agents, and cosmetic applications. Developing a fundamental understanding of the mechanisms and kinetics of adsorption/desorption …
-
Removal of organic contaminants from aqueous systems
This research investigates the removal of aromatic organic contaminants (nitrobenzene (NB), aniline (AN), paracetamol (PCT) and hydroquinone (HQ)) from aqueous systems. For NB, this study focusses on removal via both iron reduction and adsorption, while removal of the other three compounds is …
-
The Removal of Trace Organic Impurities from Water using Activated Charcol Cloth
In order to study the removal of trace organic compounds from water using activated charcoal cloth, phenol and 2 chlorophenol were chosen as typical organics, due to their widespread dissemination in the environment as toxic pollutants and the availability of relevant detailed information about …
-
The Adsorptive Separation of Aromatic Hydrocarbon Mixtures
A detailed study has been made of the feasibility of adsorptive purification of slack waxes from traces of aromatic compounds using type 13X molecular sieves to achieve 0.01% aromatics in the product. The limited literature relating to the adsorption of high molecular weight aromatic compounds by …
-
Liquid-phase adsorption of n-paraffins on type 5A molecular sieves
As a basis for the commercial separation of normal paraffins a detailed study has been made of factors affecting the adsorption of binary liquid mixtures of high molecular weight normal paraffins (C12, C16, and C20) from isooctane on type 5A molecular sieves. The literature relating to molecular …
-
Molecular design of interfacial modifications to alter adsorption/desorption equilibria at fluid-adjoining interfaces
The thermodynamics and mass transfer kinetics of adsorption and desporption at interfaces play vital roles in chemical analysis, separation processes, and many natural phenomena. In this work, computer simulations were used to design interfacial modifications to alter the physical processes of …
-
Dynamics of nanoparticles in complex fluids.
<p>Soft matter is a subfield of condensed matter including polymers, colloidal dispersions, surfactants, and liquid crystals. These materials are familiar from our everyday life- glues, paints, soaps, and plastics are examples of soft materials. Many phenomena in these systems have the same …
-
Synthesis and Characterization of Thin films of Novel Functionalised 2,5-Dithienylpyrrole Derivatives on Oxide Substrates
Conducting polymers find variety of application in many areas in microelectronics. PPY and PT are among the most extensively studied intrinsically conducting polymers. The problem of poor adhesion of the electrochemically deposited conducting polymers was the main focus of this work. This easy …
-
Development of nitrogen doped resorcinol-formaldehyde gels for carbon capture
… the effect these changes have on the application of these xerogels as carbon capture materials. Xerogel properties have been tailored, within this study, by altering the synthesis procedure with focus on monomer concentrations and catalyst to monomer ratio.Nitrogen has been incorporated into the …
-
Investigating adsorption characteristics of Delonix regia for heavy metals removal in wastewater and its potential for remediating contaminated soils
… feasibility for heavy metal removal with the aim of finding which is a better alternative to activated carbon. The focus of the present study is on investigating the adsorption characteristics of Delonix regia for the sorption of Pb, Ni, Cu, Cd and Co from polluted water and stabilization of …
-
Copper and Copper Alloys: Studies of Additives
Electrodeposition of copper is used extensively for the fabrication of electrical interconnects in semiconductor device manufacturing and in printed circuit board production, as well as other industries. Copper is often plated from an acidic copper sulfate electrolyte with a number of inorganic and …
-
Aspects of the chemistry of milk protein films formed on stainless steel
The literature on the properties of stainless steel surfaces, the physico-chemical properties of milk and the surface chemistry of proteins was reviewed to gain an insight into the formation, of protein-mineral films (“milkstone”) on the contact surfaces of dairy milk lines. Protein adsorption …