Sökning: "photocatalysis"

Visar resultat 1 - 5 av 35 avhandlingar innehållade ordet photocatalysis.

  1. 1. Photonic crystals and photocatalysis Study of titania inverse opals

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Delphine Misao Lebrun; Uppsala universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; photocatalysis; titania; inverse opal; photonic crystal; optics; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Sammanfattning : Due to an increase of human activity, an increase health risk has emerged from the presence of pollutants in the environment. In the transition to renewable and sustainable life style, treatment of pollutants could support the shifting societies. LÄS MER

  2. 2. Accumulative Charge Separation in Photocatalysis From Molecules to Nanoparticles

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mariia Pavliuk; Uppsala universitet.; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Accumulative charge separation; Electron transfer; Plasmon dynamics; Time-resolved spectroscopy; Photocatalysis.; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

    Sammanfattning : Photochemical energy conversion into solar fuel involves steps of light absorption, charge separation and catalysis. Nature has taught us that the effective accumulation of redox equivalents and charge separation are the key steps in sunlight conversion. LÄS MER

  3. 3. Photocatalysis for Indoor Air Cleaning : In situ FTIR and DFT Study of Acetaldehyde Photo-Oxidation on TiO2 and Sulfate-Modified TiO2

    Detta är en avhandling från Uppsala : Uppsala universitet

    Författare :Bozhidar Stefanov; Uppsala universitet.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TiO2; acetaldehyde; crotonaldehyde; dimer; adsorption; DFT; FTIR; photocatalysis; micro-kinetic modeling; acid–base properties; surface functionalization; Solid State Physics; Fasta tillståndets fysik; Materialvetenskap; Materials Science;

    Sammanfattning : Acetaldehyde is among the group of VOC’s causing the so-called "sick building" syndrome. WHO has estimated that this problem, related to the indoor air-quality, affects one third of all buildings worldwide. TiO2 is an attractive material for the photocatalytic removal of VOC’s in the indoor environment. LÄS MER

  4. 4. Titanium Dioxide Photocatalysis in Biomaterials Applications

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Yanling Cai; Uppsala universitet.; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; titanium dioxide; photocatalysis; bioactivity; antibacterial effect; metabolic activity assay; biofilm; reactive oxygen species; disinfection kinetics; post-UV;

    Sammanfattning : Despite extensive preventative efforts, the problem of controlling infections associated with biomedical materials persists. Bacteria tend to colonize on biocompatible materials and form biofilms; thus, novel biomaterials with antibacterial properties are of great interest. LÄS MER

  5. 5. Heterogeneous TiO2 Photocatalysis Fundamental Chemical Aspects and Effects of Solid Phase Alterations

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Veronica Diesen; KTH.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Heterogeneous photocatalysis on TiO2 is an emerging green technology for water disinfection. The rationale for this technology is based on in-situ generation of highly reactive transitory species for degradation of organic and inorganic pollutants as well as microorganisms. LÄS MER