Composite material based on nanoparticles of zerovalent iron bound to the marix surface, process of its preparation and use

摘要

ufeffkompozitnu00ed materials based on nanoparticles nulamocnu00e9ho iron bound on the surface of the matrix, which matrix is composed of mikrou010du00e1sticemi and / or makrou010du00e1sticemi nulamocnu00e9ho iron which are stable layer of one organic substances or mixtures of organic substances containing one or more functional groups capable to form complexes with iron ions.on whose surface are covalently attached nanoparticles nulamocnu00e9ho iron of 0.5 to 500 nm, where the stabilization layer matrix is formed in the water dissolving monomeric or polymeric organic substances, and the weight ratio of organic substances to the matrix is given by the ro zmezu00edm 1: 1 to 1: 100, the optimal or 1: 10.and the organic substances are selected from the group of substances containing functional groups - cooh, nh.sub.2.n., - oh, - hso.sub.3.n., or their salts.method of preparation of composite material is carried out so that the surface of the matrix formed by mikrou010du00e1sticemi and / or makrou010du00e1sticemi nulamocnu00e9ho iron is stabilized in water soluble monomeric or polymeric organic substance or their mixture to release iron ions, fe.sup.2 +.n. and / or fe.sup.3 +.n.which are then transformed into nanoparticles of iron oxides covalently bonded and homogeneously distributed on the surface for the plates, which are subsequently reduced termicky - induced reactions in the solid phase at a temperature lower than the temperature stability is rozkladnu00e1 organisation the substance of composites consisting of nanou010du00e1sticemi and nulamocnu00e9ho iron attached to the surface of nulamocnu00fdm iron matrix.