Title:
TIO2 MICROSPHERES, METHOD OF OBTAINING SAID TIO2 MICROSPHERES, AND USE THEREOF AS A SOLAR PHOTOCATALYST
Document Type and Number:
WIPO Patent Application WO/2024/042256
Kind Code:
A3
Abstract:
The present invention relates to titanium dioxide semiconductor microspheres with crystalline phases of anatase and brookite, the bandgap of which corresponds to the ultraviolet-visible region of the electromagnetic spectrum. Furthermore, the present invention relates to the process for obtaining said microspheres and their use as a solar photocatalyst, preferably as a photocatalyst for the degradation of contaminants in liquid effluents and as a photocatalyst for the production of hydrogen. Therefore, the present invention is of interest to the area of photocatalysis, particularly for industries related to wastewater treatment and filtration systems and for the energy industry.
Inventors:
CABALLERO CUESTA AMADOR (ES)
CASTELLANOS ALIAGA ANA (ES)
GONZÁLEZ CALATAYUD DAVID (ES)
JARDIEL RIVAS MARÍA TERESA (ES)
PEITEADO LÓPEZ MARCO (ES)
VILLEGAS GRACIA MARINA PILAR (ES)
CASTELLANOS ALIAGA ANA (ES)
GONZÁLEZ CALATAYUD DAVID (ES)
JARDIEL RIVAS MARÍA TERESA (ES)
PEITEADO LÓPEZ MARCO (ES)
VILLEGAS GRACIA MARINA PILAR (ES)
Application Number:
PCT/ES2023/070519
Publication Date:
April 18, 2024
Filing Date:
August 18, 2023
Export Citation:
Assignee:
CONSEJO SUPERIOR INVESTIGACION (ES)
International Classes:
C01G23/047; B01J35/70; B01J35/77; C01G23/053
Other References:
YU JIMMY C. ET AL: "Enhancing effects of water content and ultrasonic irradiation on the photocatalytic activity of nano-sized TiO 2 powders", JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. A, CHEMISTRY., 1 January 2002 (2002-01-01), pages 263 - 271, XP093126905, Retrieved from the Internet [retrieved on 20240202], DOI: 10.1016/S1010-6030(02)00052-7
QUN WANG ET AL: "Synthesis of anatase titania-carbon nanotubes nanocomposites with enhanced photocatalytic activity through a nanocoating-hydrothermal process", JOURNAL OF NANOPARTICLE RESEARCH ; AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY, KLUWER ACADEMIC PUBLISHERS, DO, vol. 9, no. 6, 13 February 2007 (2007-02-13), pages 1087 - 1096, XP019532010, ISSN: 1572-896X, DOI: 10.1007/S11051-006-9199-X
GHORAI KALYAN ET AL: "Anatase TiO2 decorated CuCr2O4 nanocomposite: A versatile photocatalyst under domestic LED light irradiation", APPLIED SURFACE SCIENCE, ELSEVIER, AMSTERDAM , NL, vol. 568, 8 August 2021 (2021-08-08), XP086775260, ISSN: 0169-4332, [retrieved on 20210808], DOI: 10.1016/J.APSUSC.2021.150838
LAKSHMINARASIMHAN NARAYANAN ET AL: "Enhanced Photocatalytic Production of H 2 on Mesoporous TiO 2 Prepared by Template-Free Method:? Role of Interparticle Charge Transfer", THE JOURNAL OF PHYSICAL CHEMISTRY C, vol. 111, no. 42, 1 October 2007 (2007-10-01), US, pages 15244 - 15250, XP093127309, ISSN: 1932-7447, DOI: 10.1021/jp0752724
QUINTERO Y ET AL: "Ultrasonic-assisted sol-gel synthesis of TiOnanostructures: Influence of synthesis parameters on morphology, crystallinity, and photocatalytic performance", JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, SPRINGER, NEW YORK, NY, US, vol. 94, no. 2, 5 March 2020 (2020-03-05), pages 477 - 485, XP037105253, ISSN: 0928-0707, [retrieved on 20200305], DOI: 10.1007/S10971-020-05263-6
QUN WANG ET AL: "Synthesis of anatase titania-carbon nanotubes nanocomposites with enhanced photocatalytic activity through a nanocoating-hydrothermal process", JOURNAL OF NANOPARTICLE RESEARCH ; AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY, KLUWER ACADEMIC PUBLISHERS, DO, vol. 9, no. 6, 13 February 2007 (2007-02-13), pages 1087 - 1096, XP019532010, ISSN: 1572-896X, DOI: 10.1007/S11051-006-9199-X
GHORAI KALYAN ET AL: "Anatase TiO2 decorated CuCr2O4 nanocomposite: A versatile photocatalyst under domestic LED light irradiation", APPLIED SURFACE SCIENCE, ELSEVIER, AMSTERDAM , NL, vol. 568, 8 August 2021 (2021-08-08), XP086775260, ISSN: 0169-4332, [retrieved on 20210808], DOI: 10.1016/J.APSUSC.2021.150838
LAKSHMINARASIMHAN NARAYANAN ET AL: "Enhanced Photocatalytic Production of H 2 on Mesoporous TiO 2 Prepared by Template-Free Method:? Role of Interparticle Charge Transfer", THE JOURNAL OF PHYSICAL CHEMISTRY C, vol. 111, no. 42, 1 October 2007 (2007-10-01), US, pages 15244 - 15250, XP093127309, ISSN: 1932-7447, DOI: 10.1021/jp0752724
QUINTERO Y ET AL: "Ultrasonic-assisted sol-gel synthesis of TiOnanostructures: Influence of synthesis parameters on morphology, crystallinity, and photocatalytic performance", JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, SPRINGER, NEW YORK, NY, US, vol. 94, no. 2, 5 March 2020 (2020-03-05), pages 477 - 485, XP037105253, ISSN: 0928-0707, [retrieved on 20200305], DOI: 10.1007/S10971-020-05263-6
Attorney, Agent or Firm:
PONS ARIÑO, Angel (ES)
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