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Mesoporous iron–manganese oxides for sulphur mustard and soman degradation

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    0382564 - ÚACH 2013 RIV GB eng J - Článek v odborném periodiku
    Štengl, Václav - Matys Grygar, Tomáš - Bludská, Jana - Opluštil, F. - Němec, T.
    Mesoporous iron–manganese oxides for sulphur mustard and soman degradation.
    Materials Research Bulletin. Roč. 47, č. 12 (2012), s. 4291-4299. ISSN 0025-5408. E-ISSN 1873-4227
    Grant CEP: GA ČR(CZ) GAP106/12/1116
    Institucionální podpora: RVO:61388980
    Klíčová slova: nanostructures * chemical synthesis * microstructure * surface poroperties
    Kód oboru RIV: CA - Anorganická chemie
    Impakt faktor: 1.913, rok: 2012

    Substituted iron(III)–manganese(III, IV) oxides, ammonio-jarosite and birnessite, were prepared by a homogeneous hydrolysis of potassium permanganate and iron(III) sulphate with 2-chloroacetamide and urea, respectively. Synthesised oxides were characterised using Brunauer–Emmett–Teller (BET) surface area and Barrett–Joiner–Halenda porosity (BJH), X-ray diffraction (XRD), infrared spectroscopy (IR), Raman spectroscopy and scanning electron microscopy (SEM). The oxides were taken for an experimental evaluation of their reactivity against sulphur mustard (HD) and soman (GD). When ammonio-jarosite formation is suppressed by adding urea to the reaction mixture, the reaction products are mixtures of goethite, schwertmannite and ferrihydrite, and their degradation activity against soman considerably increases. The best activities for the degradation of sulphur mustard (97.9% in 64 min) and soman (97.9% in 64 min) were observed for FeMn_75 with 32.6 wt.% Fe (36.8 wt.% Mn) and FeMn_37U with 60.8 wt.% Fe (10.1 wt.% Mn) samples, respectively.
    Trvalý link: http://hdl.handle.net/11104/0212753

     
     
Počet záznamů: 1  

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