Nanoporous detectors of monocyclic aromatic compounds and other pollutants

US8759111B2 · kind B2 · utility

Assignees

• CEA—Commisariat a l'Energie Atomique et aux Energies Alternatives · FR
• CNRS-CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR

Inventors

• Sabine Crunaire · Douai, FR
• Thu-Hoa Tran-Thi · Saint-Fargeau-Ponthierry, FR

Key dates

• Filing date: Jul 10, 2009
• Grant date: Jun 24, 2014
• Expiry date: Mar 11, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/255
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Porous sol-gel material essentially consisting of units of one or more first polyalkoxysilanes chosen from the following compounds: (chloromethyl)triethoxysilane; 1,3-dimethyltetramethoxydisiloxane; ethyl trimethoxysilane; 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.