CN106975478A - The preparation method of bismuth tungstate/attapulgite composite material - Google Patents

The preparation method of bismuth tungstate/attapulgite composite material Download PDF

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Publication number
CN106975478A
CN106975478A CN201710159870.7A CN201710159870A CN106975478A CN 106975478 A CN106975478 A CN 106975478A CN 201710159870 A CN201710159870 A CN 201710159870A CN 106975478 A CN106975478 A CN 106975478A
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China
Prior art keywords
attapulgite
composite material
bismuth
tungstate
bismuth tungstate
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Pending
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CN201710159870.7A
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Chinese (zh)
Inventor
夏建文
姚超
徐双
李霞章
夏青
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JIANGSU HUAYUAN MINING CO Ltd
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JIANGSU HUAYUAN MINING CO Ltd
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Priority to CN201710159870.7A priority Critical patent/CN106975478A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002Mixed oxides other than spinels, e.g. perovskite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24Chromium, molybdenum or tungsten
    • B01J23/31Chromium, molybdenum or tungsten combined with bismuth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/39Photocatalytic properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08Heat treatment
    • B01J37/10Heat treatment in the presence of water, e.g. steam
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G27/00Refining of hydrocarbon oils in the absence of hydrogen, by oxidation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/20Characteristics of the feedstock or the products
    • C10G2300/201Impurities
    • C10G2300/202Heteroatoms content, i.e. S, N, O, P

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)

Abstract

The present invention relates to a kind of preparation method of bismuth tungstate/attapulgite composite material, belong to nonmetallic mineral material finishing technology field.A certain amount of bismuth nitrate, sodium tungstate and attapulgite are taken, is added in deionized water and stirs;It is then transferred into reactor, hydro-thermal reaction, and is incubated;Reaction product is washed and alcohol is washed, drying grinding, obtains bismuth tungstate/attapulgite composite material Bi2WO6/ATP.Bi prepared by the present invention2WO6/ ATP composite Load Balanceds, good dispersion, raw material is easy to get, reproducible without complicated equipment, has very high photocatalytic degradation effect to the thiophenic sulfur in fuel oil.

Description

The preparation method of bismuth tungstate/attapulgite composite material
Technical field
The present invention relates to the preparation method of bismuth tungstate/attapulgite composite material, belong to nonmetallic mineral material finishing Technical field.
Background technology
In recent years, problem of environmental pollution is increasingly serious, and energy scarcity problem is also extremely urgent.Facing above-mentioned two big crises Situation under, people expand pollution control, the scientific research of environmental protection.Using semiconductor as catalyst, sunshine is utilized Catalyzing oxidizing degrading polluter is as a kind of effective pollution administration method, the heat studied as environmental protection science Point.Under research background as above, various countries research worker have developed a variety of semiconductor nano materials, such as TiO2、ZnO、α- Fe2O3Deng the improvement for pollutant.With TiO2Exemplified by, although nano-TiO2With very high stability, stronger photocatalysis Ability, the prominent advantage such as nontoxic pollution-free.But, because titanium dioxide energy gap is 3.2 ev, therefore meaning that TiO2 The incident photon that matching wavelength is less than 387 nm can only be absorbed, light absorbs are only limitted to ultraviolet region, the luminous energy of this wave band Amount accounts for the 5% of the sunshine for being irradiated to ground.The ratio of visible light part accounts for the 45% of solar energy, and is actually reached earth's surface Solar radiation energy concentrates on 460~500nm wave-length coverages.Therefore how light-catalyzed reaction efficiently is carried out using natural light, Exploitation just can increasingly aroused people's interest by the photochemical catalyst of excited by visible light.
In recent years, having focused on for research is found the two-phase gold with different crystal morphology by more research workers Belong on oxide, by expanding light abstraction width to visible region, to develop novel photocatalyst.Nearest many researchs hair It is existing, bismuth tungstate (Bi2WO6) it is layer structure, with the characteristic such as dielectric, luminous, catalysis, have well in many association areas Application prospect.Its unique crystal and electronic structure, shows higher photocatalytic activity, particularly to visible light-responded bright It is aobvious.In addition, bismuth based semiconductor catalysis material also has the unique advantage to hardly degraded organic substance high catalytic activity.Utilize absorption The nanoclay of excellent performance carrys out the weight that immobilized semiconductor catalyst is the current dispersiveness and reusing for solving catalyst Method is wanted, active component is combined with the clay-phase of bigger serface turns into an important development direction of catalytic field.It is recessed Convex rod native (ATP) is a kind of inexpensive natural minerals, microcosmic upper with one-dimensional layer chain nano pore structure, hydrone and one Determining the organic molecule of size can directly adsorb in its duct, macroscopically show as big specific surface area and stronger absorption And ion-exchange performance, attapulgite can be used as a kind of excellent catalyst carrier material.In recent years on recessed soil with partly leading The report of the material of bluk recombination is more, but is also not seen reported at present on bismuth tungstate and the compound document of recessed soil.
The content of the invention
The purpose of the present invention is:A kind of preparation method of bismuth tungstate/attapulgite composite material is provided, the preparation method institute The Bi obtained2WO6/ ATP composite Load Balanceds, good dispersion, raw material is easy to get, reproducible without complicated equipment, to combustion Expect that the thiophenic sulfur in oil product has very high photocatalytic degradation effect.
The present invention technical solution be:A certain amount of bismuth nitrate, sodium tungstate and attapulgite are taken, deionization is added to Stirred in water;It is then transferred into reactor, hydro-thermal reaction, and is incubated;Reaction product is washed and alcohol is washed, drying grinding, obtains tungsten Sour bismuth/attapulgite composite material Bi2WO6/ATP。
Wherein, the mol ratio of bismuth nitrate and sodium tungstate is 1:3~1:Between 7, quality of the attapulgite relative to bismuth tungstate Than for 1:3~1:8.
Wherein, hydrothermal temperature is 180~240 DEG C, and the hydro-thermal reaction time is 16~24h.
Wherein, 60~100 DEG C of 12~24h of insulation after hydro-thermal reaction.
It is an advantage of the invention that:
1st, employ a kind of more easy chemical technology and prepare load more uniform, bismuth tungstate/bumps of good dispersion Rod stone composite material, without complicated equipment, chemical raw material used is cheap, and favorable repeatability has very high commercial introduction Value.
2nd, attapulgite itself has abundant microcellular structure and larger specific surface area, has very well to organic matter macromolecular Adsorption capacity in situ;Attapulgite solid-carried catalyst powder, it is to avoid catalyst powder separation is difficult, the problems such as reclaim difficult.
3rd, the composite prepared by the present invention can catalytic degradation organic pollution, fully profit under the conditions of solar irradiation With solar energy, this kind of composite has very big potential using value in terms of deep desulfurization of gasoline.
4th, strict control mixing time in bismuth tungstate/bumps rod composite material, course of reaction is prepared using the step of hydro-thermal method one And temperature, it is to avoid cause the generation of accessory substance because of the difference of mixing time and temperature, it is ensured that the photocatalysis of influence material is lived Property.
5th, on the one hand catalyst is made to be contacted rapidly, fully with organic matter using the excellent adsorption capacity of attapulgite;It is another Contain in the recessed soil of aspect after a small amount of calcium, magnesium, iron plasma, Material cladding, the foreign ion in recessed soil enters the lattice of bismuth tungstate In, cause the defect of lattice to increase, promote the transfer of light induced electron, it is to avoid light induced electron itself it is compound, by carrier with Concerted catalysis effect between active component, and then largely strengthen the catalytic activity of composite.
6th, with attapulgite, sodium tungstate, bismuth nitrate is primary raw material, is synthesized using hydro-thermal method, concavo-convex by optimizing The technological parameters such as rod soil and mass ratio, hydrothermal temperature and the hydro-thermal time of bismuth nitrate and sodium tungstate control bismuth tungstate/concave convex rod The pattern and distribution of composite, so as to obtain the product of Load Balanced, good dispersion.
Brief description of the drawings
Fig. 1 is ATP, Bi of embodiment 12WO6And Bi2WO6/ ATP (Bi2WO6The XRD spectra of/ATP=1/2);
Fig. 2 is the Bi of embodiment 12WO6/ ATP (Bi2WO6The TEM photos of 100 nm scale ranges of/ATP=1/2);
Fig. 3 is the Bi of embodiment 12WO6/ATP ((Bi2WO6The degradation curve of/ATP=1/2) to dibenzothiophenes.
Embodiment
Technical scheme is described in further detail with reference to embodiment, but is not to be construed as to technical scheme Limitation.
Embodiment 1:The bismuth nitrate for weighing 0.17g first is dissolved in 50ml deionized water, and magnetic agitation 30min obtains white Color solution;0.047g sodium tungstate is added into white solution again, it is molten that continuation magnetic agitation 30min is mixed to get white mixing Liquid;The attapulgite that 0.2g is added into white mixed solution continues magnetic agitation 10min, obtains faint yellow turbid solution;Will Faint yellow turbid solution is put into 100ml ptfe autoclaves, 180 DEG C of hydro-thermal reaction 24h;After reaction terminates, in reactor Lower floor's pale yellow precipitate, upper strata settled solution, 60 DEG C of insulation 24h;Pale yellow precipitate is washed with deionized water, absolute ethyl alcohol, 80 DEG C of drying, grinding obtains bismuth tungstate/concave convex rod nanostructure composite material.
To the gained Bi of embodiment 12WO6/ ATP carries out X-ray powder diffraction experiment, and observes under transmission electron microscope its pattern And structure, ATP, Bi2WO6And Bi2WO6/ ATP (Bi2WO6The XRD spectra of/ATP=1/2) is as shown in figure 1, composite Bismuth tungstate and the respective characteristic diffraction peak of attapulgite are occurred in that in XRD, illustrates that attapulgite is successfully combined bismuth tungstate.
The gained Bi of embodiment 12WO6/ ATP TEM photos are as shown in Fig. 2 it can be seen that attapulgite and tungsten Sour bismuth is more uniformly combined with each other, consistent with XRD result.
Using ATP, Bi2WO6And Bi2WO6/ ATP carries out the thiophene in photochemical catalytic oxidation removing fuel oil as catalyst Sulphur, is obtained to the degradation rate curve of dibenzothiophenes as shown in figure 3, it can be seen that Bi2WO6/ ATP is to dibenzothiophenes Degradation rate under illumination 4h is up to more than 98%.
Embodiment 2:The bismuth nitrate for weighing 0.17g first is dissolved in 50ml deionized water, and magnetic agitation 30min obtains white Color solution;0.05g sodium tungstate is added into white solution again, continues magnetic agitation 30min and is mixed to get white mixed solution; 0.3g attapulgite is added into white mixed solution, continues magnetic agitation 10min, obtains faint yellow turbid solution;Will be light Yellow turbid solution is put into 100ml ptfe autoclaves, 210 DEG C of hydro-thermal reaction 20h;Reaction terminate after, in reactor under Layer pale yellow precipitate, upper strata settled solution, 80 DEG C of insulation 18h;Pale yellow precipitate is washed with deionized water, absolute ethyl alcohol, 70 DEG C drying, grinding obtain bismuth tungstate/attapulgite clay nano structural composite material.Subsequent detection such as embodiment 1.
Embodiment 3:The bismuth nitrate for weighing 0.17g first is dissolved in 50ml deionized water, and magnetic agitation 30min obtains white Color solution;0.06g sodium tungstate is added into white solution again, continues magnetic agitation 30min and is mixed to get white mixed solution; 0.4g attapulgite is added into white mixed solution, continues magnetic agitation 10min, obtains faint yellow turbid solution;Will be light Yellow turbid solution is put into 100ml ptfe autoclaves, 240 DEG C of hydro-thermal reaction 16h;Reaction terminate after, in reactor under Layer pale yellow precipitate, upper strata settled solution, 100 DEG C of insulation 24h;Pale yellow precipitate is washed with deionized water, absolute ethyl alcohol, 80 DEG C drying, grinding obtain bismuth tungstate/attapulgite clay nano structural composite material.Subsequent detection such as embodiment 1.
Embodiment 4:The bismuth nitrate for weighing 0.17g first is dissolved in 50ml deionized water, and magnetic agitation 30min obtains white Color solution;0.07g sodium tungstate is added into white solution again, continues magnetic agitation 30min and is mixed to get white mixed solution; 0.5g attapulgite is added into white mixed solution, continues magnetic agitation 10min, obtains faint yellow turbid solution;Will be light Yellow turbid solution is put into 100ml ptfe autoclaves, 180 DEG C of hydro-thermal reaction 18h;Reaction terminate after, in reactor under Layer pale yellow precipitate, upper strata settled solution, 70 DEG C of insulation 16h;Pale yellow precipitate is washed with deionized water, absolute ethyl alcohol, 60 DEG C drying, grinding obtain bismuth tungstate/attapulgite clay nano structural composite material.Subsequent detection such as embodiment 1.
Embodiment 5:The bismuth nitrate for weighing 0.17g first is dissolved in 50ml deionized water, and magnetic agitation 30min obtains white Color solution;0.07g sodium tungstate is added into white solution again, continues magnetic agitation 30min and is mixed to get white mixed solution; 0.6g attapulgite is added into white mixed solution, continues magnetic agitation 10min, obtains faint yellow turbid solution;Will be light Yellow turbid solution is put into 100ml ptfe autoclaves, 210 DEG C of hydro-thermal reaction 22h;After reaction terminates, reactor lower floor Pale yellow precipitate, upper strata settled solution, 90 DEG C of insulation 22h;Pale yellow precipitate is washed with deionized water, absolute ethyl alcohol, 80 DEG C Drying, grinding obtains bismuth tungstate/attapulgite clay nano structural composite material.Subsequent detection such as embodiment 1.

Claims (4)

1. the preparation method of bismuth tungstate/attapulgite composite material, it is characterized in that:Take a certain amount of bismuth nitrate, sodium tungstate and recessed Convex rod soil, is added in deionized water and stirs;It is then transferred into reactor, hydro-thermal reaction, and is incubated;Reaction product wash and Alcohol is washed, drying grinding, obtains bismuth tungstate/attapulgite composite material Bi2WO6/ATP。
2. the preparation method of bismuth tungstate/attapulgite composite material according to claim 1, it is characterized in that:Bismuth nitrate and The mol ratio of sodium tungstate is 1:3~1:Between 7, attapulgite is 1 relative to the mass ratio of bismuth tungstate:3~1:8.
3. the preparation method of bismuth tungstate/attapulgite composite material according to claim 1, it is characterized in that:Hydro-thermal reaction Temperature is 180~240 DEG C, and the hydro-thermal reaction time is 16~24h.
4. the preparation method of bismuth tungstate/attapulgite composite material according to claim 1, it is characterized in that:Hydro-thermal reaction 60~100 DEG C are incubated 12~24h afterwards.
CN201710159870.7A 2017-03-17 2017-03-17 The preparation method of bismuth tungstate/attapulgite composite material Pending CN106975478A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107649117A (en) * 2017-10-27 2018-02-02 盛世园林集团股份有限公司 A kind of bismuth molybdate/attapulgite clay compounded visible light catalytic material and preparation method thereof, application
CN108014799A (en) * 2017-12-14 2018-05-11 盱眙县中材凹凸棒石粘土有限公司 The preparation method of nickel titanate/attapulgite composite material
CN114904521A (en) * 2021-02-09 2022-08-16 中国建筑材料科学研究总院有限公司 Au/Bi 2 WO 6 Mineral ternary composite material and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105582909A (en) * 2015-12-23 2016-05-18 常州大学 Preparation method and application of bismuth tungstate/expanded graphite sheet nanocomposite
CN105797712A (en) * 2016-04-07 2016-07-27 常州大学 Preparation method of Mo-doped Bi2WO6/MMT (montmorillonite) composite material and application of Mo-doped Bi2WO6/MMT composite material in photocatalytic desulfurization

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105582909A (en) * 2015-12-23 2016-05-18 常州大学 Preparation method and application of bismuth tungstate/expanded graphite sheet nanocomposite
CN105797712A (en) * 2016-04-07 2016-07-27 常州大学 Preparation method of Mo-doped Bi2WO6/MMT (montmorillonite) composite material and application of Mo-doped Bi2WO6/MMT composite material in photocatalytic desulfurization

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107649117A (en) * 2017-10-27 2018-02-02 盛世园林集团股份有限公司 A kind of bismuth molybdate/attapulgite clay compounded visible light catalytic material and preparation method thereof, application
CN107649117B (en) * 2017-10-27 2020-06-30 盛世生态环境股份有限公司 Bismuth molybdate/attapulgite composite visible light catalytic material, and preparation method and application thereof
CN108014799A (en) * 2017-12-14 2018-05-11 盱眙县中材凹凸棒石粘土有限公司 The preparation method of nickel titanate/attapulgite composite material
CN114904521A (en) * 2021-02-09 2022-08-16 中国建筑材料科学研究总院有限公司 Au/Bi 2 WO 6 Mineral ternary composite material and preparation method and application thereof
CN114904521B (en) * 2021-02-09 2024-01-16 中国建筑材料科学研究总院有限公司 Au/Bi 2 WO 6 Mineral ternary composite material, preparation method and application thereof

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