Essays about: "Fotokatalytisk"

Showing result 1 - 5 of 6 essays containing the word Fotokatalytisk.

  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 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

  4. 3. Enhancing the degradation rate of microplastics and organizing a study visit about sustainability

    University essay from KTH/Lärande

    Author : Marianne Al-Ghorabi; [2020]
    Keywords : Accommodation; assimilation; Fenton reaction; microplastics; polypropylene; polystyrene; proximal development zone; study visit; visible light photocatalysis; zinc oxide nanorods; Ackommodation; assimilation; den proximala utvecklingszonen; Fenton reaktion; fotokatalys med synligt ljus; mikroplast; polypropalen; polystyren; studiebesök; zinkoxid nanorör.;

    Abstract : Microplastics take hundreds to thousands of years to degrade in nature, and pose a threat to the environment. A photocatalytical degradation method have been developed to take advantage of solar light to degrade microplastics, however it takes several months to degrade microplastics with the process. READ MORE

  5. 4. Carbon dioxide utilization in the food industry. Synthesis of carbohydrates and their precursors via photocatalytic reduction of carbon dioxide

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Alex Mosquera Canchingre; [2020]
    Keywords : CO2 utilization; photocatalysis; carbohydrates; artificial photosynthesis; sustainable food industry; CO2-användning; fotokatalys; kolhydrater; artificiell fotosyntes; hållbar livsmedelsindustri;

    Abstract : Today’s society strives to eliminate the carbon dioxide (CO2) emissions, which is the main greenhouse gas emitted through anthropogenic activities and contributes to climate change. In this project utilization of CO2 emissions from waste to energy plants to carbohydrates via photocatalytic reduction with water and further carbon coupling reactions is investigated. READ MORE

  6. 5. Photoredox catalysis with 10-phenyl-10H- phenothiazine and synthesis of a photocatalytic chiral proline-based organocatalyst

    University essay from KTH/Organisk kemi

    Author : Panagiotis Lamprianidis; [2020]
    Keywords : organic chemistry; photocatalysis; organocatalysis; organocatalyst; organic synthesis; organisk kemi; fotokatalys; organokatalys; organokatalysator; organisk syntes;

    Abstract : Photoredox catalysis applications for the purpose of new synthetic routes in organic and sustainable chemistry are hot topics in organic synthesis today. In the present study, the synthesis of a chiral proline-based organocatalyst functionalized with 10-phenyl-10H phenothiazine (PTH) photocatalytic moietiesis investigated and attempted for the first time. READ MORE