IN2013MU02425A - - Google Patents

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Publication number
IN2013MU02425A
IN2013MU02425A IN2425MU2013A IN2013MU02425A IN 2013MU02425 A IN2013MU02425 A IN 2013MU02425A IN 2425MU2013 A IN2425MU2013 A IN 2425MU2013A IN 2013MU02425 A IN2013MU02425 A IN 2013MU02425A
Authority
IN
India
Prior art keywords
slurry
range
water
chloroauric acid
mixture containing
Prior art date
Application number
Inventor
Auhin Kumar Maparu
Beena Rai
Original Assignee
Tata Consultancy Services Ltd
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 Tata Consultancy Services Ltd filed Critical Tata Consultancy Services Ltd
Priority to IN2425MU2013 priority Critical patent/IN2013MU02425A/en
Priority to EP14177685.6A priority patent/EP2826559B1/en
Priority to US14/335,011 priority patent/US9352302B2/en
Publication of IN2013MU02425A publication Critical patent/IN2013MU02425A/en

Links

Classifications

    • 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
    • B01J23/52—Gold
    • 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
    • B01J23/38—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
    • B01J35/30—
    • B01J35/39—
    • B01J35/40—
    • 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
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0027—Powdering
    • B01J37/0036—Grinding
    • 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
    • B01J37/009—Preparation by separation, e.g. by filtration, decantation, screening
    • 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
    • B01J37/32—Freeze drying, i.e. lyophilisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/84—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by UV- or VIS- data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3615—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C1/3623—Grinding

Abstract

Present disclosure provides a process for the synthesis of visible light responsive doped titania photocatalysts. The process involves step a) milling a mixture containing titania and a precursor compound, said compound selected from the group consisting of chloroauric acid and a mixture containing chloroauric acid and silver nitrate, in the presence of water and oxide milling media, at a temperature in the range of 20 to 500C for a period of 60 -120 minutes, to form a slurry, wherein the amount of water is in the range of 15 to 25% by weight of the total mixture; and b) filtering the slurry to separate the oxide milling media and obtain a filtrate containing doped titania nanoparticles.
IN2425MU2013 2013-07-20 2013-07-20 IN2013MU02425A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IN2425MU2013 IN2013MU02425A (en) 2013-07-20 2013-07-20
EP14177685.6A EP2826559B1 (en) 2013-07-20 2014-07-18 A process for the synthesis of visible light responsive doped titania photocatalysts
US14/335,011 US9352302B2 (en) 2013-07-20 2014-07-18 Visible light responsive doped titania photocatalytic nanoparticles and process for their synthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN2425MU2013 IN2013MU02425A (en) 2013-07-20 2013-07-20

Publications (1)

Publication Number Publication Date
IN2013MU02425A true IN2013MU02425A (en) 2015-06-19

Family

ID=51211637

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2425MU2013 IN2013MU02425A (en) 2013-07-20 2013-07-20

Country Status (3)

Country Link
US (1) US9352302B2 (en)
EP (1) EP2826559B1 (en)
IN (1) IN2013MU02425A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112250310A (en) * 2020-11-18 2021-01-22 广东欧文莱陶瓷有限公司 Anti-slip ceramic tile with antifouling effect and preparation method thereof
CN112940541A (en) * 2020-11-25 2021-06-11 正太新材料科技有限责任公司 Preparation method of titanium dioxide nano visible light catalytic pigment
CN113457650A (en) * 2021-05-13 2021-10-01 华东师范大学 Catalytic oxidation formaldehyde and long-acting fluorescent photocatalysis composite material and preparation method thereof
CN114471700A (en) * 2022-02-28 2022-05-13 华东理工大学 Physical mixed catalyst for propylene hydrogen oxygen epoxidation and preparation method and application thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001042140A1 (en) * 1999-12-13 2001-06-14 Jonathan Sherman Nanoparticulate titanium dioxide coatings, and processes for the production and use thereof
DE10064069A1 (en) * 2000-12-21 2002-07-04 Karl F Massholder Aqueous composition containing a semiconductor
TWI272250B (en) * 2004-06-30 2007-02-01 Ind Tech Res Inst Visible light-activated photocatalyst and method for producing the same
JP5241994B2 (en) * 2004-11-05 2013-07-17 戸田工業株式会社 Titanium oxide particle powder and photocatalyst
US20060210798A1 (en) * 2005-03-16 2006-09-21 Clemens Burda Doped metal oxide nanoparticles and methods for making and using same
WO2008005055A2 (en) * 2005-12-29 2008-01-10 The Board Of Trustees Of The University Of Illinois Nanoparticles containing titanium oxide
US7901660B2 (en) * 2005-12-29 2011-03-08 The Board Of Trustees Of The University Of Illinois Quaternary oxides and catalysts containing quaternary oxides
JP5234305B2 (en) * 2007-04-16 2013-07-10 独立行政法人産業技術総合研究所 Photocatalyst structure
ATE510455T1 (en) * 2007-10-03 2011-06-15 3M Innovative Properties Co METHOD FOR LIMITING MICROORGANISM GROWTH
CN101559346A (en) * 2008-04-18 2009-10-21 展晶科技(深圳)有限公司 Photocatalyst device
US20100213046A1 (en) * 2009-01-06 2010-08-26 The Penn State Research Foundation Titania nanotube arrays, methods of manufacture, and photocatalytic conversion of carbon dioxide using same
EP2411143A4 (en) * 2009-03-24 2014-01-29 Lars Oesterlund Highly reactive photocatalytic material and manufacturing thereof
US8791044B2 (en) * 2010-04-30 2014-07-29 The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency Doped titanium dioxide as a visible and sun light photo catalyst
WO2013109507A1 (en) * 2012-01-18 2013-07-25 Nitto Denko Corporation Titania photocatalytic compounds and methods of making the same
EP2650335B1 (en) 2012-04-13 2018-05-30 Tata Consultancy Services Ltd. A process for synthesis of doped titania nanoparticles having photocatalytic activity in sunlight
TWI455890B (en) * 2012-07-09 2014-10-11 Univ Nat Chi Nan Bimetal modified titanium dioxide and preparation method thereof
US20140216918A1 (en) * 2013-02-01 2014-08-07 Bioptik Technology, Inc. Method for fabricating gold/titanium dioxide core-shell structured photocatalyst and application thereof to photocatalytic decomposition of organic compounds

Also Published As

Publication number Publication date
US9352302B2 (en) 2016-05-31
US20150024930A1 (en) 2015-01-22
EP2826559A1 (en) 2015-01-21
EP2826559B1 (en) 2021-12-01

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