发明名称 |
Nanoporous detectors of monocyclic aromatic compounds and other pollutants |
摘要 |
Porous sol-gel material essentially consisting of units of one or more first polyalkoxysilanes chosen from the following compounds: (chloromethyl)triethoxysilane; 1,3-dimethyltetramethoxydisiloxane; ethyltrimethoxysilane; triethoxy(ethyl)silane; triethoxymethylsilane; triethoxy(vinyl)silane; trimethoxymethylsilane; trimethoxy(vinyl)silane; tetraethoxysilane or tetramethoxysilane (TMOS) and of units of one or more second polyalkoxysilanes chosen from the following compounds: (N-(3-(trimethoxysilyl)propyl)ethylenediamine; 3-aminopropyltriethoxysilane (APTES) and 3-aminopropyltrimethoxysilane, in a first polyalkoxysilane/second polyalkoxysilane molar ratio of 1/0.01 to 1/1, optionally comprising a probe molecule, method of preparation and applications in the trapping of monocyclic aromatic hydrocarbons and other pollutants or in their detection. |
申请公布号 |
US9562882(B2) |
申请公布日期 |
2017.02.07 |
申请号 |
US201414270459 |
申请日期 |
2014.05.06 |
申请人 |
CEA—COMMISSARIAT ATOMIQUE ET AUX ENERGIES ALTERNATIVES;CNRS—CENTRE NATIONAL DE LA TECHERCHE SCIENTIFIQUE |
发明人 |
Crunaire Sabine;Tran-Thi Thu-Hoa |
分类号 |
G01N33/00;B01J20/10;B01J20/26;B01J20/28;C03B19/12;C08L83/08 |
主分类号 |
G01N33/00 |
代理机构 |
Frost Brown Todd LLC |
代理人 |
Frost Brown Todd LLC |
主权项 |
1. A porous sol-gel material consisting essentially of:
units of one or more first polyalkoxysilane(s) selected from the following compounds: (chloromethyl)triethoxysilane; 1,3-dimethyltetramethoxydisiloxane; ethyltrimethoxysilane; triethoxy(ethyl)silane; triethoxymethylsilane; triethoxy(vinyl)silane; trimethoxymethylsilane; trimethoxy(vinyl)silane; tetraethoxysilane and tetramethoxysilane (TMOS); and units of one or more second polyalkoxysilane(s) selected from the following compounds: (N-(3-(trimethoxysilyl)propyl)ethylenediamine; 3-aminopropyltriethoxysilane (APTES) and 3-aminopropyltrimethoxysilane, in a first polyalkoxysilane(s)/second polyalkoxysilane(s) mole ratio of 1/0.01 to 1/1; wherein the porous sol-gel matrix is solid, self-standing and transparent to UV radiation; and an optional probe molecule; and wherein the pores of said porous sol-gel material have a pH of from 7 to 8.2; and wherein the sol-gel material is prepared according to a process comprising: mixing the first polyalkoxysilane(s), at a temperature of −45 to +15° C., with a water-miscible organic solvent therefor, then adding a second polyalkoxysilane(s), adding water; and continuing stirring to obtain a sol and then the defined sol-gel; and drying said sol-gel at a controlled temperature and under an atmosphere of dry inert gas so as to evaporate off residual solvents. |
地址 |
Paris FR |