Search for dissertations about: "Adsorption of dyes"

Showing result 1 - 5 of 24 swedish dissertations containing the words Adsorption of dyes.

2. 1. Molecular Interaction of Thin Film Photosensitive Organic Dyes on TiO2 Surfaces

   Author : Shun Yu; Mats Göthelid; Chassé Thomas; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; photoelectron spectroscopy; X-ray absorption spectroscopy; organic semiconductor; oxides; adsorption; dye sensitization; electronic structure; charge transfer;

   Abstract : The photosensitive molecule adsorption on titanium dioxide (TiO2) forms the so-called “dye sensitized TiO2” system, a typical organic/oxide heterojunction, which is of great interest in catalysis and energy applications, e.g. dye-sensitized solar cell (DSSC). Traditionally, the transition metal complex dyes are the focus of the study. READ MORE

4. 2. Direct observation of biomolecule adsorption and spatial distribution of functional groups in chromatographic adsorbent particles

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

   Abstract : 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. READ MORE

5. 3. Dyes and their adsorption onto nanocrystalline TiO2 electrodes : Synthesis, characterisation and applications

   Author : Viviane Aranyos; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; organisk kemi; Organic Chemistry;

   Abstract : The syntheses of two type of dyes (phthalocyanine and ruthenium tris-bipyridyl) are presented here. Their characterisation involves the use of cyclic voltammetry, NMR- and UV-visible spectroscopy. Once adsorbed on nanocrystalline TiO2 electrodes, their electrochemical, spectroelectrochemical and photoelectrochemical properties were investigated. READ MORE

6. 4. Development and Tailoring of Low‐Density Cellulose‐Based Structures for Water Treatment

   Author : Zhaleh Atoufi Najafabadi; Lars Wågberg; Per A. Larsson; Julien Bras; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adsorption; Aerogels; Amyloid nanofibrils; Cellulose; Cellulose nanofibrils; β- lactoglobulin; water treatment; Adsorption; Aerogel; Amyloid nanofibriller; Cellulosa; Cellulosa nanofibriller; β- laktoglobulin; vattenbehandling; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : The challenges posed by our limited clean water sources and the well-known global water pollution demand more efficient water purification technologies. Additionally, the increasing environmental awareness has inspired a shift towards eco-friendly and renewable materials and technologies. READ MORE

7. 5. Nanostructured surfaces created by the interactions of dendrimers and oppositely charged amphiphiles

   Author : Marianna Yanez; Fysikalisk kemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; PAMAM; Surfactant; SDS; Lipid; Bilayer; Model Biomembrane; Nucleolipid; DLPA; DLPU; DNA; RNA; Neutron Reflectometry; Poly amidoamine ; Interface; Adsorption; Polyelectrolyte;

   Abstract : The research described in this thesis aims to understand the interactions between cationic poly(amidoamine) (PAMAM) dendrimers and small oppositely charged amphiphiles at the solid-liquid and air-liquid interfaces in relation to the bulk solution behavior. There is high interest in PAMAM dendrimers because they are well-defined polymers with a hierarchical architecture which makes them promising materials as nanocapsules and gene vectors. READ MORE