Sökning: "montmorillonite."

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet montmorillonite..

  1. 1. Method evaluation for probing DNA sorption to clay minerals : Evaluation of fluorescent and spectroscopic quantification of DNA as well as DNA interactions of Kaolinite and Montmorillonite

    Kandidat-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Oskar Wangdell; [2022]
    Nyckelord :;

    Sammanfattning : The association of DNA/RNA to mineral surfaces is an emerging field with widespread applications from biotechnological solutions to paleogenetics. Evaluating available methods to quantify adsorption will be essential to further investigate how to control and predict loading of DNA onto minerals. LÄS MER

  3. 2. An investigation of the interactions between clay nanoplatelets in the presence of monovalent and divalent salts, as well as cationic peptides utilising atomistic molecular dynamics

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Mona Koder Hamid; [2020]
    Nyckelord :clay; molecular dynamics simulations; physical chemistry; fysikalisk kemi; theoretical chemistry; teoretisk kemi; Chemistry;

    Sammanfattning : Clays are negatively charged nanoplatelets with a layered silicate structure. It has been observed from small angle X-ray scattering measurements, and coarse-grained molecular dynamics simulations (CG-MD) that clay nanoplatelets are able to form stacks, known as tactoids, in the presence of divalent or multivalent counterions [8, 5]. LÄS MER

  4. 3. Mineralogy and petrology of a drill core section from Borg, SW Norrköping – fracture fillings and tentative mineral reactions

    Kandidat-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :Ting-Fung Chong; [2019]
    Nyckelord :Swedish Transport Administration; mineral reactions; diabas; dolerite; mafic rock; xrd; xrf; Trafikverket; Norrköping; Ostlänken; Bergslagen;

    Sammanfattning : During drilling at Borg, ca. 5 km southwest of central Norrköping, an unidentified fine-grained grey rock was encountered in contact with dark red granitic gneiss at 35m depth. The fine-grained grey rock occurs above the red granitic gneiss. LÄS MER

  5. 4. Radiation Effects on KBS-3 Barriers: SKB’s work so far

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Ismael Safi; [2017]
    Nyckelord :KBS-3; Repository; Radiation; Bentonite; Montmorillonite;

    Sammanfattning : In the Swedish concept for final disposal of spent nuclear fuel, referred to as KBS-3, a three-layered protection system is used. The system consists of a copper canister holding the spent nuclear fuel deposited 500 meters in a repository built in groundwater saturated granitic rock. LÄS MER

  7. 5. PILCs for trapping phosphorus in a heavy duty engine exhaust system : An experimental evaluation of the phosphorus sorption capability of different clay materials

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Anders Kvarned; [2016]
    Nyckelord :PILC; PCH; phosphorus sorption; exhaust treatment; catalyst poisoning;

    Sammanfattning : In order to fulfil the requirements in the EURO VI standard, regulating emissions from heavy duty vehicles, the exhaust aftertreatment system needs to maintain its efficiency for at least seven years or 700 000 km. In diesel applications the diesel oxidation catalyst (DOC) is located closest to the engine and is thus the most vulnerable to poisoning contaminants, such as phosphorus originating from fuel and oil additives, which deactivates the catalyst. LÄS MER