IT202200006182A1 - Microparticelle con attivita' fotocatalitica e procedimento per la loro preparazione - Google Patents

Microparticelle con attivita' fotocatalitica e procedimento per la loro preparazione Download PDF

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Publication number
IT202200006182A1
IT202200006182A1 IT102022000006182A IT202200006182A IT202200006182A1 IT 202200006182 A1 IT202200006182 A1 IT 202200006182A1 IT 102022000006182 A IT102022000006182 A IT 102022000006182A IT 202200006182 A IT202200006182 A IT 202200006182A IT 202200006182 A1 IT202200006182 A1 IT 202200006182A1
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IT
Italy
Prior art keywords
microparticles
procedure
preparation
photocatalytic activity
photocatalytic
Prior art date
Application number
IT102022000006182A
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English (en)
Inventor
Federica Minozzi
Claudia Letizia Maddalena Bianchi
Roberto Pellini
Valentino Capucci
Original Assignee
Granitifiandre Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Granitifiandre Spa filed Critical Granitifiandre Spa
Priority to IT102022000006182A priority Critical patent/IT202200006182A1/it
Priority to PCT/IB2023/053120 priority patent/WO2023187668A1/en
Publication of IT202200006182A1 publication Critical patent/IT202200006182A1/it

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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/005—Spinels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/48—Silver or gold
    • B01J23/50—Silver
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    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/39—Photocatalytic properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • B01J37/033—Using Hydrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • B01J37/088—Decomposition of a metal salt
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    • C04B35/47—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on strontium titanates
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
IT102022000006182A 2022-03-29 2022-03-29 Microparticelle con attivita' fotocatalitica e procedimento per la loro preparazione IT202200006182A1 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT102022000006182A IT202200006182A1 (it) 2022-03-29 2022-03-29 Microparticelle con attivita' fotocatalitica e procedimento per la loro preparazione
PCT/IB2023/053120 WO2023187668A1 (en) 2022-03-29 2023-03-29 Microparticles with photocatalytic activity and process for the preparation thereof

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US20100190633A1 (en) * 2006-12-22 2010-07-29 Feng Bai Photocatalytic coating
WO2010146410A1 (en) 2009-06-19 2010-12-23 Granitifiandre S.P.A. Photocatalytic ceramic article and method for its production
US20190276383A1 (en) * 2018-03-09 2019-09-12 King Abdulaziz University PT/SRTiO3 PHOTOCATALYST FOR PRODUCTION OF CYCLOALKANOLS AND CYCLOALKANONES FROM CYCLOALKANES

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US6210779B1 (en) * 1993-12-10 2001-04-03 Toto Ltd. Multi-functional material with photocatalytic functions and method of manufacturing same
US20100190633A1 (en) * 2006-12-22 2010-07-29 Feng Bai Photocatalytic coating
WO2010146410A1 (en) 2009-06-19 2010-12-23 Granitifiandre S.P.A. Photocatalytic ceramic article and method for its production
US20190276383A1 (en) * 2018-03-09 2019-09-12 King Abdulaziz University PT/SRTiO3 PHOTOCATALYST FOR PRODUCTION OF CYCLOALKANOLS AND CYCLOALKANONES FROM CYCLOALKANES

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CUI YONGFEI ET AL: "Effect of Ferroelectricity on Solar-Light-Driven Photocatalytic Activity of BaTiO 3 -Influence on the Carrier Separation and Stern Layer Formation", CHEMISTRY OF MATERIALS, vol. 25, no. 21, 17 October 2013 (2013-10-17), US, pages 4215 - 4223, XP055975922, ISSN: 0897-4756, DOI: 10.1021/cm402092f *
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