Essays about: "photocatalyst"

Showing result 1 - 5 of 11 essays containing the word photocatalyst.

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

    University essay from KTH/Tillämpad fysik

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

    Abstract : 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. READ MORE

  3. 2. Photocatalytic generation of hydrogen from cellulose

    University essay from KTH/Kraft- och värmeteknologi

    Author : Stefano De Luca; [2022]
    Keywords : ;

    Abstract : 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. READ MORE

  4. 3. Phase and Interface Design in Potential Earth-Abundant Multi-Component Photocatalysts

    University essay from Lunds universitet/Kemiska institutionen

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

    Abstract : 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. READ MORE

  5. 4. Photoredox catalysis enabled C–O bond activation: Access to unnatural amino acids

    University essay from KTH/Kemi

    Author : Josefin Lantz; [2021]
    Keywords : photoredox catalysis; unnatural amino acids; alkyl oxalate; visible light; radicals; fotoredoxkatalys; icke-naturliga aminosyror; alkyloxalat; synligt ljus; radikaler;

    Abstract : Fotoredoxkatalys tillhandahåller möjligheter att utveckla nya hållbara kemiska reaktionsvägar. När fotokatalysatorn bestrålas med synligt ljus möjliggörs elektronöverföring till eller från substratet som i sin tur medför alstring av reaktiva fria radikaler. READ MORE

  6. 5. Photocatalytic Degradation of Organic Substances in Salt Water

    University essay from KTH/Kemiteknik

    Author : Celice Carlsson; Love Wiklund; Emilie Svensson; Benjamin Fégeant; [2021]
    Keywords : Photocatalytic degradation; titanium dioxide; reactive halogen species; Tris hydroxymethyl aminomethane; methanol; competition kinetics; Fotokatalytisk nedbrytning; titandioxid; reaktiva halogen molekyler; Tris hydroxymetyl aminometan; metanol; konkurrenskinetik;

    Abstract : The purpose of this research was to investigate the kinetics and mechanisms of the photocatalytic degradation of organic substances in the presence of anions (bromide and chloride), using titanium dioxide as a photocatalyst. Tris(hydroxymethyl)aminomethane (Tris) and methanol were the organic substances used as probes. READ MORE