CN108452669A - The preparation method of composite material and its to U（VI）Light promote reducing process - Google Patents
The preparation method of composite material and its to U（VI）Light promote reducing process Download PDFInfo
- Publication number
- CN108452669A CN108452669A CN201810201314.6A CN201810201314A CN108452669A CN 108452669 A CN108452669 A CN 108452669A CN 201810201314 A CN201810201314 A CN 201810201314A CN 108452669 A CN108452669 A CN 108452669A
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- composite material
- preparation
- light
- composite
- perovskite
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- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- 238000007540 photo-reduction reaction Methods 0.000 claims abstract description 4
- 239000013049 sediment Substances 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- JTCFNJXQEFODHE-UHFFFAOYSA-N [Ca].[Ti] Chemical compound [Ca].[Ti] JTCFNJXQEFODHE-UHFFFAOYSA-N 0.000 claims description 4
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims 2
- 229910052770 Uranium Inorganic materials 0.000 abstract description 12
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract description 12
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 239000000356 contaminant Substances 0.000 abstract description 5
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 3
- 239000011707 mineral Substances 0.000 abstract description 3
- 239000010936 titanium Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- -1 absorption Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 231100000045 chemical toxicity Toxicity 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
- B01J23/02—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
- 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
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
Light the invention discloses the preparation method of composite material and to U (VI) promotees reducing process, perovskite/composite titania material is prepared according to one-step method, the U (VI) in aqueous solution is adsorbed first, the U (VI) of absorption generates U under visible light by the photoelectron of composite material and electron hole photo-reduction at U (IV)(IV)O2(s) sediments such as.The present invention removes problem for the uranium of contaminated site, hexavalent uranium is reduced into uranous by using photochemistry/photocatalytic process, its Ca-Ti ore type mineral is as special catalysis material, it can be used for the light degradation of volatile organic contaminant, and the prices of raw materials are cheap, integrated artistic is easy to operate, environmental-friendly, easy to spread.
Description
Technical field
The present invention relates to ecological agent technical field, specially the preparation method of composite material and the light of U (VI) is promoted also
Former technique.
Background technology
Uranium, which is made it possible to, in uranium mining and spentnuclear fuel last handling process is discharged into ground surface environment.Due to its radioactivity
And chemical toxicity, there are serious threats to aquatile and human health for uranium.Therefore, it is current to the removal of the uranium of contaminated site
The topic of major concern.
Currently, there are many minimizing technology to uranium, including absorption, chemical precipitation, infiltration/reverse osmosis and oxidation-reduction method.Closely
Nian Lai, numerous studies find hexavalent uranium are reduced into uranous by photochemistry/photocatalytic process.Ca-Ti ore type mineral are made
Solar energy materials, the light degradation of volatile organic contaminant are had been widely used for for special catalysis material.However it is single
One perovskite object light degradation rate is low, the practical application being limited in environment remediation.
Invention content
Light the purpose of the present invention is to provide the preparation method of composite material and to U (VI) promotees reducing process, according to one
Footwork prepares perovskite/composite titania material, and the prices of raw materials are cheap, and technological operation is simple, environmental-friendly, is easy to push away
Extensively, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：The preparation method of composite material, including following step
Suddenly：
S1：Calcium nitrate solids of the 1.0mmol containing 4 crystallizations water is dissolved directly into the polyethanol solvent of 20mL；
S2：The solution of tetrabutyl titanate of 0.35ml is slowly dissolved in above-mentioned S1 solution under Ultrasonic Conditions；
S3：22mmol sodium hydrate solids are added and are heated to 50 degree under water bath condition, react 30 minutes；
S4：Mixed liquor after being reacted in S3 is placed in reaction kettle, is reacted 15 hours under 180 degree and obtains perovskite/dioxy
Change titanium composite material.
Preferably, the perovskite/composite titania material is a kind of catalysis material.
The present invention provides another technical solution：A kind of composite material promotees reducing process, the calcium titanium to the light of U (VI)
Mine/composite titania material first adsorbs the U (VI) in aqueous solution, and the U (VI) of absorption is compound under visible light
The photoelectron of material and electron hole photo-reduction generate U at U (IV)(IV)O2(s) sediment.
Compared with prior art, the beneficial effects of the invention are as follows：
The preparation method of this composite material and reducing process is promoted to the light of U (VI), problem is removed for the uranium of contaminated site,
Hexavalent uranium is reduced into uranous by using photochemistry/photocatalytic process, Ca-Ti ore type mineral are as special photocatalysis
Material can be used for the light degradation of volatile organic contaminant, and prepare perovskite/composite titania material according to one-step method,
The prices of raw materials are cheap, and integrated artistic is easy to operate, environmental-friendly, easy to spread.
Description of the drawings
Fig. 1 is perovskite/composite titania material XRD diagram of the present invention；
Fig. 2 is perovskite/composite titania material SEM figures of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one：
- 2 are please referred to Fig.1, the preparation method of composite material includes the following steps：
The first step：Calcium nitrate solids of the 1.0mmol containing 4 crystallizations water is dissolved directly into the polyethanol solvent of 20mL；
Second step：The solution of tetrabutyl titanate of 0.35ml is slowly dissolved in the solution of above-mentioned steps one under Ultrasonic Conditions
In；
Third walks：22mmol sodium hydrate solids are added and are heated to 50 degree under water bath condition, react 30 minutes；
4th step：Mixed liquor after being reacted in step 3 is placed in reaction kettle, is reacted 15 hours under 180 degree and obtains calcium titanium
Mine/composite titania material, the composite material are a kind of catalysis material, can be widely applied to solar energy materials, are used
In the light degradation of volatile organic contaminant.
Embodiment two：
It is described based on above-described embodiment one, a kind of composite material is also provided, reducing process is promoted to the light of U (VI), wherein calcium
Titanium ore/composite titania material first adsorbs the U (VI) in aqueous solution, and the U (VI) of absorption is answered under visible light
The photoelectron of condensation material and electron hole photo-reduction generate U at U (IV)(IV)O2(s) sediment.
In summary：The preparation method of composite material provided by the invention and reducing process is promoted to the light of U (VI), for dirt
The uranium for contaminating place removes problem, and hexavalent uranium is reduced into uranous, Ca-Ti ore type mine by using photochemistry/photocatalytic process
Object can be used for the light degradation of volatile organic contaminant as special catalysis material, and according to one-step method prepare perovskite/
Composite titania material, the prices of raw materials are cheap, and integrated artistic is easy to operate, environmental-friendly, easy to spread.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. the preparation method of composite material, which is characterized in that include the following steps：
S1：Calcium nitrate solids of the 1.0mmol containing 4 crystallizations water is dissolved directly into the polyethanol solvent of 20mL；
S2：The solution of tetrabutyl titanate of 0.35ml is slowly dissolved in above-mentioned S1 solution under Ultrasonic Conditions；
S3：22mmol sodium hydrate solids are added and are heated to 50 degree under water bath condition, react 30 minutes；
S4：Mixed liquor after being reacted in S3 is placed in reaction kettle, is reacted 15 hours under 180 degree and obtains perovskite/titanium dioxide
Composite material.
2. the preparation method of composite material as described in claim 1, it is characterised in that：Perovskite/the titanium dioxide is compound
Material is a kind of catalysis material.
3. a kind of composite material as described in claim 1 promotees reducing process to the light of U (VI), which is characterized in that the calcium titanium
Mine/composite titania material first adsorbs the U (VI) in aqueous solution, and the U (VI) of absorption is compound under visible light
The photoelectron of material and electron hole photo-reduction generate U at U (IV)(IV)O2(s) sediment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201314.6A CN108452669A (en) | 2018-03-12 | 2018-03-12 | The preparation method of composite material and its to U（VI）Light promote reducing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201314.6A CN108452669A (en) | 2018-03-12 | 2018-03-12 | The preparation method of composite material and its to U（VI）Light promote reducing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108452669A true CN108452669A (en) | 2018-08-28 |
Family
ID=63217262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810201314.6A Pending CN108452669A (en) | 2018-03-12 | 2018-03-12 | The preparation method of composite material and its to U（VI）Light promote reducing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108452669A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280766A (en) * | 2018-09-26 | 2019-01-29 | 绍兴文理学院 | One kind is with C3N4For the extraction of uranium from seawater system and method for adsorbent |
| CN110550695A (en) * | 2019-09-29 | 2019-12-10 | 核工业北京地质研究院 | Method for selecting material for treating radioactive uranium-containing wastewater from sandstone-type uranium ores |
| CN110655243A (en) * | 2019-09-29 | 2020-01-07 | 核工业北京地质研究院 | By using TiO2Method for treating uranium-containing wastewater by adsorption-photocatalytic reduction |
Citations (4)
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|---|---|---|---|---|
| CN1785502A (en) * | 2005-11-02 | 2006-06-14 | 刘应希 | Nano-composite composite material and its preparation method |
| CN102432062A (en) * | 2011-09-26 | 2012-05-02 | 常州大学 | Preparation method of perovskite-like varistor ceramic material CaCu3Ti4O12 with high dielectric constant |
| CN103263907A (en) * | 2013-05-31 | 2013-08-28 | 浙江大学 | Titanium dioxide/lead titanate compounded nanometer photocatalyst and preparation method thereof |
| CN103771532A (en) * | 2014-03-04 | 2014-05-07 | 西北大学 | Preparation method of BiFeO3 material, BiFeO3/TiO2 composite film and application thereof |
-
2018
- 2018-03-12 CN CN201810201314.6A patent/CN108452669A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785502A (en) * | 2005-11-02 | 2006-06-14 | 刘应希 | Nano-composite composite material and its preparation method |
| CN102432062A (en) * | 2011-09-26 | 2012-05-02 | 常州大学 | Preparation method of perovskite-like varistor ceramic material CaCu3Ti4O12 with high dielectric constant |
| CN103263907A (en) * | 2013-05-31 | 2013-08-28 | 浙江大学 | Titanium dioxide/lead titanate compounded nanometer photocatalyst and preparation method thereof |
| CN103771532A (en) * | 2014-03-04 | 2014-05-07 | 西北大学 | Preparation method of BiFeO3 material, BiFeO3/TiO2 composite film and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郭亚丹等: "锐钛矿型TiO2的低温制备及其光催化还原六价铀活性研究", 《陶瓷学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280766A (en) * | 2018-09-26 | 2019-01-29 | 绍兴文理学院 | One kind is with C3N4For the extraction of uranium from seawater system and method for adsorbent |
| CN109280766B (en) * | 2018-09-26 | 2020-07-24 | 绍兴文理学院 | With C3N4System and method for extracting uranium from seawater by using adsorbent |
| CN110550695A (en) * | 2019-09-29 | 2019-12-10 | 核工业北京地质研究院 | Method for selecting material for treating radioactive uranium-containing wastewater from sandstone-type uranium ores |
| CN110655243A (en) * | 2019-09-29 | 2020-01-07 | 核工业北京地质研究院 | By using TiO2Method for treating uranium-containing wastewater by adsorption-photocatalytic reduction |
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Application publication date: 20180828 |
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