Sökning: "Photocatalytic"

Visar resultat 1 - 5 av 27 uppsatser innehållade ordet Photocatalytic.

  1. 1. Crystallinity of Sputtered TiO2 Thin Films: a Study of the Heating and Plasma Influence on the Growth

    Master-uppsats,

    Författare :oussama ezzaher; [2023]
    Nyckelord :;

    Sammanfattning : AbstractHigh-Power Impulse Magnetron Sputtering (HIPIMS) of TiO2 thin films enhances their photocatalyticproperties compared to the films prepared by standard sputtering methods, especially when no substrateheating is employed. With no heating, the coatings present an amorphous structure that benefits from theionization of the sputtered flux granted by HiPIMS, with respect to their photocatalytic performance. LÄS MER

  3. 2. Development of chitosan nanocomposite coatings for visible-light photocatalytic antiviral applications

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Michael Neuman; [2023]
    Nyckelord :Biopolymer; Chitosan; Coating; Nanocomposite; Photocatalytic; Zinc oxide; Antimicrobial; Antiviral; Coronavirus COVID-19 ; Biopolymer; Kitosan; Beläggning; Nanokomposit; Fotokatalytisk; Zinkoxid; Antimikrobiell; Antiviral; Coronavirus COVID-19 ;

    Sammanfattning : During the global pandemic of coronavirus, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak, the world was desperately searching for simpler yet more effective solutions to stop the spread of coronavirus (COVID-19). Since no one was prepared for the fast spread of such a contagious virus, there was a shortage of proper protective solutions to stop the spread. LÄS MER

  4. 3. THE GOTHENBURG COLOURISTS - Analysis of selected works by Karin Parrow, Ivan Ivarsson and Ragnar Sandberg

    Master-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Sebastian Karlsson; [2022-11-28]
    Nyckelord :Gothenburg; colourists; pigment; analysis; Göteborg; Kolorister; Karin Parrow; Ivan Ivarsson; Ragnar Sandberg;

    Sammanfattning : ABSTRACT Paintings from three selected Gothenburg colorists, Karin Parrow, Ivan Ivarsson and Ragnar Sandberg were analysed to gain insight into their use of colour. The Gothenburg colorists refers to a group of artists who were active in the Gothenburg area and west coast of Sweden, most of them had studied under Tor Bjurström (1888-1966) at the Valand Academy of art during the 20s. LÄS MER

  5. 4. Photocatalytic generation of hydrogen from cellulose

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Stefano De Luca; [2022]
    Nyckelord :;

    Sammanfattning : Uncontrolled emission of greenhouse gases caused by consumption of fossil fuels has led to the urgent need to develop low-emitting energy technologies such as those exploiting renewable energies. In this context, hydrogen (H2) represents an opportunity to enhance the development of such technologies, in light of the possibility to use it as an energy storage for non-programmable renewables, and for its potential to decarbonize key emitting sectors such as transport sector. LÄS MER

  7. 5. Phase and Interface Design in Potential Earth-Abundant Multi-Component Photocatalysts

    L3-uppsats, Lunds universitet/Kemiska institutionen

    Författare :David Llorens Rauret; [2022]
    Nyckelord :Facet control; in-situ TEM; nanoparticle heterostructures; phase transformation; transition metal phosphides; inorganic nanomaterials; Chemistry;

    Sammanfattning : Transition metal phosphides are low-cost, earth-abundant semiconductors with promising properties for photocatalysis, including water-splitting. When combined with other semiconductors or noble metals in nanoparticles, their photocatalytic performance can be drastically enhanced. LÄS MER