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    Preparation of new aldehyde and/or ketone traps and filters
    4.
    发明授权
    Preparation of new aldehyde and/or ketone traps and filters 有权

    公开(公告)号：US11571650B2

    公开(公告)日：2023-02-07

    申请号：US16634633

    申请日：2018-07-27

    申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS-

    发明人： Thu-Hoa Tran-Thi ,  Ana Borta ,  Mickael Gineys ,  Marie-Pierre Som ,  Frédéric Hammel

    IPC分类号： B01D53/02 ,  B01J20/20 ,  B01J20/10 ,  B01J20/22 ,  B01J20/28

    摘要： A method for preparing a nanoporous silica sol-gel matrix containing at least one amine reactant selected from hydroxylamine, methylhydroxylamine, tertbutylhydroxylamine, methoxyamine, tetraethylenepentamine, dicarboxylic acid dihydrazides, particularly adipic acid dihydrazide, and the salts thereof, said method including the following steps: a) synthesising a gel from tetramethoxysilane or from a mixture of tetramethoxysilane and another organosilicon precursor selected from among phenyltrimethoxysilane, phenyltriethoxysilane, a fluoroalkyltrimethoxysilane, a fluoroalkyltriethoxysilane, a chloroalkylmethoxysilane, a chloroalkylethoxysilane, an alkyltrimethoxysilane, an alkyltriethoxysilane, an aminopropyltriethoxysilane and the mixtures thereof, the synthesis being performed in an aqueous medium at a temperature ranging from 10 to 70° C. in the presence of at least one amine reactant selected from among hydroxylamine, methylhydroxylamine, tertbutylhydroxylamine, methoxyamine, dicarboxylic acid dihydrazides, particularly adipic acid dihydrazide, and the salts thereof; b) drying the gel obtained during step a) so as to obtain a sol-gel matrix containing at least one amine reactant.

    System and method for removing contaminants
    6.
    发明授权
    System and method for removing contaminants 有权

    公开(公告)号：US11565235B2

    公开(公告)日：2023-01-31

    申请号：US16631470

    申请日：2018-07-19

    申请人： Youngstown State University

    发明人： Douglas T. Genna ,  Alissa Renee Geisse

    IPC分类号： B01J20/22 ,  B01J20/02 ,  C02F1/68 ,  C02F1/28 ,  C07F3/06 ,  C07F7/00 ,  C02F101/20 ,  C07F1/08

    摘要： A heterogeneous material (e.g., a metal-organic framework or “MOF”) is useful for removing heavy metals from a liquid (e.g., water). The heterogeneous material may incorporate a group 16-containing heterocycle supported on solid media. Thiophene-containing MOFs, such as ATF-1 and DUT-67, may be used to remove lead from water. It is postulated that the metal is adsorbed via non-covalent interactions. The systems and methods described herein may also be applicable to other heavy metals. Thus, the applications are not limited to drinking water purification. Instead, the systems and methods may be used for a broad variety of other applications, such as nuclear waste remediation.