Sökning: "ion adsorption"

Visar resultat 21 - 25 av 134 avhandlingar innehållade orden ion adsorption.

  1. 21. Studies of transport in oxides on Zr-based materials

    Författare :Clara Anghel; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zirconium; hydrogen; oxygen diffusion; second-phase particle; oxidation; dissociation; hydration; carbon monoxide; adsorption; porosity; Other materials science; Övrig teknisk materialvetenskap;

    Sammanfattning : Zr-based materials have found their main application in the nuclear field having high corrosion resistance and low neutron absorption cross-section. The oxide layer that is formed on the surface of these alloys is meant to be the barrier between the metal and the corrosive environment. LÄS MER

  3. 22. Mechanisms of salt frost scaling on portland cement-bound materials: studies and hypothesis

    Författare :Sture Lindmark; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Deterioration; Durability; Freeze-Thaw; Frost; Salt; Mechanism; Chloride; Diffusion; Adsorption; Building construction; Cement; Concrete; Byggnadsteknik;

    Sammanfattning : A hypothesis regarding the mechanism causing salt frost scaling on Portland cement-bound materials is described. It is assumed that deterioration is due to osmotic micro ice body growth, as has been previously proposed for frost deterioration of moisture-isolated specimens of cement-bound materials. LÄS MER

  4. 23. Aspects of the Design of Preparative Chromatography for Purification of Antibodies

    Författare :David Karlsson; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; ion-exchange chromatography; adsorption kinetics; gels; model calibration; robustness analysis; optimisation; ESPI; diffusion; steric mass action; Langmuir MPM; antibodies; design; Preparative chromatography; modelling; proteins; Chemical technology and engineering;

    Sammanfattning : The development of biotechnological products is becoming more and more expensive. One type of protein attracting a great deal of attention in the biopharmaceutical industry is antibodies, which was used in this work. LÄS MER

  5. 24. Direct observation of biomolecule adsorption and spatial distribution of functional groups in chromatographic adsorbent particles

    Författare :Anders Ljunglöf; Abraham Lenhoff; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; Confocal microscopy; confocal Raman spectroscopy; protein adsorption; ligand distribution; visualization; imaging; Bioteknik; Bioengineering; Bioteknik; Surface Biotechnology; ytbioteknik;

    Sammanfattning : Confocal microscopy has been used as a tool for studying adsorption of biomolecules to individual chromatographic adsorbent particles. By coupling a fluorescent dye to protein molecules, their penetration into single adsorbent particles could be observed visually at different times during batch uptake. LÄS MER

  7. 25. Modified and hybrid cellulose-based materials for water purification

    Författare :Dimitrios Georgouvelas; Aji Mathew; Henrikki Liimatainen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cellulose; lignocellulose; membranes; water treatment; heavy metal adsorption; dye adsorption; scalability; materialkemi; Materials Chemistry;

    Sammanfattning : The need for clean water has led to the development of several different water treatment methods as well as to a large number of organic, inorganic, hybrid and/or composite materials that are used in these methods. Cellulose, being a highly abundant biopolymer with meritorious properties, such as high mechanical strength, tunable surface chemistry, high aspect ratio and surface area, to mention a few, is exploited in the current thesis for water treatment applications. LÄS MER