Invention Grant
- Patent Title: Photocatalytic composition comprising metallic particles and two semiconductors, one of which is composed of cerium oxide
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Application No.: US15518967Application Date: 2015-10-06
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Publication No.: US10682630B2Publication Date: 2020-06-16
- Inventor: Dina Lofficial , Antoine Fecant , Denis Uzio , Eric Puzenat , Christophe Geantet
- Applicant: IFP ENERGIES NOUVELLES , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE , UNIVERSITE CLAUDE BERNARD—LYON 1
- Applicant Address: FR Rueil- Malmaison FR Paris FR Villeurbanne
- Assignee: IFP ENERGIES NOUVELLES,CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE,UNIVERSITE CLAUDE BERNARD—LYON 1
- Current Assignee: IFP ENERGIES NOUVELLES,CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE,UNIVERSITE CLAUDE BERNARD—LYON 1
- Current Assignee Address: FR Rueil- Malmaison FR Paris FR Villeurbanne
- Agency: Millen, White, Zelano and Branigan, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@742f944b
- International Application: PCT/EP2015/072995 WO 20151006
- International Announcement: WO2016/058861 WO 20160421
- Main IPC: B01J23/63
- IPC: B01J23/63 ; B01J37/03 ; B01J37/34 ; B01J23/66 ; B01J35/00 ; B01J23/83 ; C01B3/26 ; C01B3/22
Abstract:
The invention relates to a composition that contains a first semiconductor SC1, particles that comprise one or more element(s) M in the metal state selected from among an element of groups IVB, VB, VIB, VIIB, VIIIB, IB, IIB, IIIA, IVA and VA of the periodic table, and a second semiconductor SC2 that comprises cerium oxide, with said first semiconductor SC1 being in direct contact with said particles that comprise one or more element(s) M in the metal state, with said particles being in direct contact with said second semiconductor SC2 that comprises cerium oxide in such a way that the second semiconductor SC2 covers at least 50% of the surfaces of the particles that comprise one or more element(s) M in the metal state. The invention also relates to its preparation method as well as its application of photocatalysis.
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