Search for dissertations about: "γ-MnOOH"

Found 2 swedish dissertations containing the word γ-MnOOH.

  2. 1. Chemical Processes at the Water-Manganite (γ-MnOOH) Interface

    Author : Madeleine Ramstedt; Staffan Sjöberg; Per Persson; Lars Lövgren; Steven A. Banwart; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; manganite; γ-MnOOH; mineral surface; acid-base properties; adsorption; Cd II ; N- phosphonomethyl glycine; glyphosate; PMG; surface complex; dissolution; disproportionation; XPS; EXAFS; infrared spectroscopy; SEM; AFM; potentiometry; electrophoresis; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi; oorganisk kemi; Inorganic Chemistry;

    Abstract : The chemistry of mineral surfaces is of great importance in many different areas including natural processes occurring in oceans, rivers, lakes and soils. Manganese (hydr)oxides are one important group to these natural processes, and the thermodynamically most stable trivalent manganese (hydr)oxide, manganit (γ-MnOOH), is studied in this thesis. READ MORE

  4. 2. Modeling of glyphosate and metal-glyphosate speciation in solution and at solution-mineral interfaces

    Author : Caroline Jonsson; Staffan Sjöberg; Per Persson; Bernd Nowack; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; herbicide; glyphosate; surface complexation model; speciation; goethite; aged gamma-alumina; bayerite; manganite; cadmium II ; aluminium III ; potentiometric titration; adsorption; Chemistry; Kemi;

    Abstract : Glyphosate (N-(phosphonomethyl)glycine, PMG, H3L) is a widely used organophosphorous herbicide. It interacts with metal ions and mineral surfaces, which may affect its mobility, degradation and bioavailability in the environment. However, these interactions are far from fully understood. READ MORE