. "2012-01-01+01:00"^^ . . . "8284"^^ . . . . "The project is aimed at gaining a deeper understanding of the principles and mechanism of stoichiometric decomposition of organophosphorus pesticides. To study the kinetics and mechanism of degradation of environmentally hazardous substances will be used a unique nanocrystalline materials based on mixed oxides of Ti, Fe and Zr, which have very specific high specific surface area or a high degree of crystallinity. Oxides with high specific surface area will be prepared by homogeneous hydrolysis in an aqueous environment, oxide with a high degree of crystallinity by hydrothermal synthesis in an autoclave at elevated temperature and pressure. Unlike classic sorbents, which only absorbs pollutants to the surface, the nanocrystalline materials after sorption chemical pollutants decomposed into non toxic products. The mechanism of organophosphorus pesticide degradation will be studied using molecular spectroscopy and separation with GC-MS and LC-MS. Understanding the mechanism of degradation make to prepare new functional materials for efficient and low-cost decontamination of environment\u2026"@en . "organophosphorus pesticides, nanocrystalline metal oxides, degradation mechanism"@en . . "0"^^ . "Nanocrystalline metal oxides for safe and fast degradation of organophosphorus pesticides"@en . . "Nanokrystalick\u00E9 oxidy kov\u016F pro bezpe\u010Dnou a rychlou degradaci organofosfore\u010Dn\u00FDch pesticid\u016F"@cs . . "2014-12-31+01:00"^^ . "1"^^ . "2"^^ . "1"^^ . "P\u0159edkl\u00E1dan\u00FD projekt je zam\u011B\u0159en na z\u00EDsk\u00E1n\u00ED hlub\u0161\u00EDho porozumn\u011Bn\u00ED princip\u016Fm a mechanismu stechiometrick\u00E9ho rozkladu organofosfore\u010Dn\u00FDch pesticid\u016F. Pro studium kinetiky a mechanismu rozkladu t\u011Bchto environment\u00E1ln\u011B nebezpe\u010Dn\u00FDch l\u00E1tek budou pou\u017Eity unik\u00E1tn\u00ED nanokrystalick\u00E9 materi\u00E1ly na b\u00E1zi sm\u011Bsn\u00FDch oxid\u016F Ti, Fe a Zr, kter\u00E9 se vyzna\u010Duj\u00ED velmi vysok\u00FDm specifick\u00FDm m\u011Brn\u00FDm povrchem (a\u017E 800 m2/g) nebo vysok\u00FDm stupn\u011Bm krystalinity. Oxidy s vysok\u00FDm m\u011Brn\u00FDm povrchem budou p\u0159ipravov\u00E1ny metodou homogenn\u00ED hyrol\u00FDzy ve vodn\u00E9m prost\u0159ed\u00ED, oxidy s vysok\u00FDm stupn\u011Bm krystalinity pomoc\u00ED hydroterm\u00E1ln\u00ED synt\u00E9zy v autokl\u00E1vu p\u0159i zv\u00FD\u0161en\u00E9 teplot\u011B a tlaku. Oproti klasick\u00FDm sorbent\u016Fm (zeolity, aktivn\u00ED uhl\u00ED), kter\u00E9 polutanty pouze sorbuj\u00ED na povrch, tyto nanokrystalick\u00E9 materi\u00E1ly polutanty po sorbci chemicky rozlo\u017E\u00ED na netoxick\u00E9 produkty. Mechanismus rozkladu organofosfore\u010Dn\u00FDch pesticid\u016F bude studov\u00E1n metodami molekulov\u00E9 spektroskopie (I\u010C a Raman) a d\u00E1le separa\u010Dn\u00EDmi metodami GC-MS a LC-MS. Pochopen\u00ED mechanismu rozkladu umo\u017En\u00ED p\u0159ipravit nov\u00E9 funk\u010Dn\u00ED materi\u00E1ly pro \u00FA\u010Dinnou a levnou dekontaminaci p\u0159\u00EDrodn\u00EDho prost\u0159ed\u00ED."@cs . . . . . "2"^^ . "8284"^^ .