CN106552676A - A kind of preparation method of titanium dioxide optical catalytic environment purification material - Google Patents
A kind of preparation method of titanium dioxide optical catalytic environment purification material Download PDFInfo
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- CN106552676A CN106552676A CN201611043922.6A CN201611043922A CN106552676A CN 106552676 A CN106552676 A CN 106552676A CN 201611043922 A CN201611043922 A CN 201611043922A CN 106552676 A CN106552676 A CN 106552676A
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- titanium dioxide
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 24
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 14
- 238000000746 purification Methods 0.000 title claims abstract description 13
- 230000003287 optical effect Effects 0.000 title claims abstract description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 18
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000032683 aging Effects 0.000 claims abstract description 6
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 6
- 229960000935 dehydrated alcohol Drugs 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 238000002604 ultrasonography Methods 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 238000001354 calcination Methods 0.000 abstract description 4
- 238000007146 photocatalysis Methods 0.000 description 7
- 230000001699 photocatalysis Effects 0.000 description 7
- 229910010413 TiO 2 Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000007540 photo-reduction reaction Methods 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 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
- 239000000809 air pollutant Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
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- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
Abstract
The invention discloses Ag is first deposited on TiO by a kind of preparation method of titanium dioxide optical catalytic environment purification material2Surface, then the TiO of Ag will be loaded with2It is immobilized on shitosan, specifically includes following steps：S1, by TiO2, deionized water, dehydrated alcohol according to volume ratio be 1:3‑7:During 17 21 ratio adds 250 350mL water, ultrasonic mixing obtains aaerosol solution A；S2, it is 68 according to volume ratio by aaerosol solution A and sodium hydroxide solution：3 ratio mixing, continues to stir to be hydrolyzed within 23 hours to react and be sufficiently mixed to obtain aaerosol solution B；S3, add on 3mL hydrochloric acid and 8 10g shitosans in aaerosol solution B, after stirring using ultraviolet light for a period of time, obtain milky solution C；S4, by milky solution C still aging 24 60 hours at room temperature, obtain gel, and be dried, grind, calcining, grind after obtain end-product.
Description
Technical field
The present invention relates to photocatalysis field, more particularly to a kind of preparation side of titanium dioxide optical catalytic environment purification material
Method.
Background technology
As environmental pollution becomes increasingly conspicuous, air quality and quality problem are increasingly paid close attention to by people.In recent years, profit
With conductor photocatalysis material, especially with optically catalytic TiO 2 oxidation air or organic pollutants Multi-phase light
Catalytic process oneself become a kind of preferable environmental improvement technology.Photocatalysis can be carried out at normal temperatures and pressures, can be directly with air
Oxygen as oxidant, be a kind of Treatment process of effective cleaning environment, be at home and abroad widely studied.But the dioxy of routine
Change titanium in photocatalysiss, its light induced electron and hole are recombined in very short time, cause quantum efficiency low, and surface is anti-
Answer speed low；In addition, the titanium dioxide of routine needs wavelength just play photocatalysiss less than the ultraviolet light of 387nm, this is big
Limit greatly the practical application of titanium dioxide.
The content of the invention
The invention aims to shortcoming present in prior art is solved, and a kind of optically catalytic TiO 2 for proposing
The preparation method of environment purification material.
To achieve these goals, present invention employs following technical scheme：
Ag is first deposited on TiO by a kind of preparation method of titanium dioxide optical catalytic environment purification material2Surface, then will be loaded with
The TiO of Ag2It is immobilized on shitosan, specifically includes following steps：
S1, by TiO2, deionized water, dehydrated alcohol according to volume ratio be 1:3-7:During the ratio of 17-21 adds 250-350mL water
Ultrasonic mixing obtains aaerosol solution A；
S2, it is 6-8 according to volume ratio by aaerosol solution A and sodium hydroxide solution：3 ratio mixing, continues stirring 2-3 hours and enters
Row hydrolysis are simultaneously sufficiently mixed and obtain aaerosol solution B；
S3, add on 3mL hydrochloric acid and 8-10g shitosans in aaerosol solution B, when after stirring using one section of ultraviolet light
Between, obtain milky solution C；
S4, by milky solution C still aging 24-60 hours at room temperature, obtain gel, and be dried, grind, calcine, grind
End-product is obtained after mill.
Preferably, in step S1, the intensity of ultrasound is 100-120W.
Preferably, in step S3, the intensity of ultraviolet light is 12-18W, and wavelength is 254nm.
Preferably, the condition being dried in step S4 is to be dried 24-60 hours at 90-110 DEG C.
Compared with prior art, the invention has the beneficial effects as follows：The optically catalytic TiO 2 that preparation method of the present invention is obtained
Adsorbing material effectively increases TiO2Photocatalytic oxidation properties, while also solving catalysis material is not readily separated asking for recovery
Topic；Preparation method of the present invention first prepares Ag simple substance using photoreduction met hod, and makes which be deposited on TiO2Surface forms and is loaded with Ag's
TiO2Photocatalyst, reaches the purpose for suppressing electronics and hole-recombination, so as to improve the photocatalysis efficiency of catalyst；Again using height
Molecular material shitosan is used as the immobilized TiO for being loaded with Ag of immobilized base material2；The optically catalytic TiO 2 adsorbing material for obtaining is not only
With good adsorption effect, and it is easily recycled and separates, the emerging pollutant PPCP of process can be applied to.
Specific embodiment
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement
Example is only a part of embodiment of the invention, rather than the embodiment of whole.
Embodiment one
Ag is first deposited on TiO by a kind of preparation method of titanium dioxide optical catalytic environment purification material2Surface, then will be loaded with
The TiO of Ag2It is immobilized on shitosan, specifically includes following steps：
S1, by TiO2, deionized water, dehydrated alcohol according to volume ratio be 1:3:17 ratio adds ultrasonic mixing in 250mL water
Obtain aaerosol solution A；
S2, it is 6 according to volume ratio by aaerosol solution A and sodium hydroxide solution：3 ratio mixing, continues stirring and enters water-filling in 2 hours
Solution is reacted and is sufficiently mixed and obtains aaerosol solution B；
S3, add on 3mL hydrochloric acid and 8g shitosans in aaerosol solution B, after stirring using ultraviolet light for a period of time,
Obtain milky solution C；
S4, by milky solution C still aging 24 hours at room temperature, obtain gel, and after being dried, grind, calcining, grinding
Obtain end-product.
Preferably, in step S1, the intensity of ultrasound is 100W.
Preferably, in step S3, the intensity of ultraviolet light is 12W, and wavelength is 254nm.
Preferably, the condition being dried in step S4 is to be dried 24 hours at 90 DEG C.
Embodiment two
Ag is first deposited on TiO by a kind of preparation method of titanium dioxide optical catalytic environment purification material2Surface, then will be loaded with
The TiO of Ag2It is immobilized on shitosan, specifically includes following steps：
S1, by TiO2, deionized water, dehydrated alcohol according to volume ratio be 1:5:19 ratio adds ultrasonic mixing in 300mL water
Obtain aaerosol solution A；
S2, it is 7 according to volume ratio by aaerosol solution A and sodium hydroxide solution：3 ratio mixing, continue stirring is carried out for 2.5 hours
Hydrolysis are simultaneously sufficiently mixed and obtain aaerosol solution B；
S3, add on 3mL hydrochloric acid and 9g shitosans in aaerosol solution B, after stirring using ultraviolet light for a period of time,
Obtain milky solution C；
S4, by milky solution C still aging 45 hours at room temperature, obtain gel, and after being dried, grind, calcining, grinding
Obtain end-product.
Preferably, in step S1, the intensity of ultrasound is 110W.
Preferably, in step S3, the intensity of ultraviolet light is 15W, and wavelength is 254nm.
Preferably, the condition being dried in step S4 is to be dried 45 hours at 100 DEG C.
Embodiment three
Ag is first deposited on TiO by a kind of preparation method of titanium dioxide optical catalytic environment purification material2Surface, then will be loaded with
The TiO of Ag2It is immobilized on shitosan, specifically includes following steps：
S1, by TiO2, deionized water, dehydrated alcohol according to volume ratio be 1:7:21 ratio adds ultrasonic mixing in 350mL water
Obtain aaerosol solution A；
S2, it is 8 according to volume ratio by aaerosol solution A and sodium hydroxide solution：3 ratio mixing, continues stirring and enters water-filling in 3 hours
Solution is reacted and is sufficiently mixed and obtains aaerosol solution B；
S3, add on 3mL hydrochloric acid and 10g shitosans in aaerosol solution B, when after stirring using one section of ultraviolet light
Between, obtain milky solution C；
S4, by milky solution C still aging 60 hours at room temperature, obtain gel, and after being dried, grind, calcining, grinding
Obtain end-product.
Preferably, in step S1, the intensity of ultrasound is 120W.
Preferably, in step S3, the intensity of ultraviolet light is 18W, and wavelength is 254nm.
Preferably, the condition being dried in step S4 is to be dried 60 hours at 110 DEG C.
The optically catalytic TiO 2 adsorbing material that preparation method of the present invention is obtained effectively increases TiO2Photochemical catalytic oxidation
Performance, while also solving the problem that catalysis material is not readily separated recovery；Preparation method of the present invention first adopts photo-reduction legal system
Standby Ag simple substance, and make which be deposited on TiO2Surface forms the TiO for being loaded with Ag2Photocatalyst, reaches suppression electronics and hole-recombination
Purpose, so as to improve the photocatalysis efficiency of catalyst；Again using macromolecular material shitosan as the immobilized load of immobilized base material
There is the TiO of Ag2；The optically catalytic TiO 2 adsorbing material for obtaining not only have good adsorption effect, and be easily recycled and
Separate, the emerging pollutant PPCP of process can be applied to.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, should all be included within the scope of the present invention.
Claims (4)
1. Ag is first deposited on TiO by a kind of preparation method of titanium dioxide optical catalytic environment purification material2Surface, then will be loaded with
The TiO of Ag2It is immobilized on shitosan, it is characterised in that specifically include following steps：
S1, by TiO2, deionized water, dehydrated alcohol according to volume ratio be 1:3-7:During the ratio of 17-21 adds 250-350mL water
Ultrasonic mixing obtains aaerosol solution A；
S2, it is 6-8 according to volume ratio by aaerosol solution A and sodium hydroxide solution：3 ratio mixing, continues stirring 2-3 hours and enters
Row hydrolysis are simultaneously sufficiently mixed and obtain aaerosol solution B；
S3, add on 3mL hydrochloric acid and 8-10g shitosans in aaerosol solution B, when after stirring using one section of ultraviolet light
Between, obtain milky solution C；
S4, by milky solution C still aging 24-60 hours at room temperature, obtain gel, and be dried, grind, calcine, grind
End-product is obtained after mill.
2. the preparation method of a kind of titanium dioxide optical catalytic environment purification material according to claim 1, it is characterised in that
In step S1, the intensity of ultrasound is 100-120W.
3. the preparation method of a kind of titanium dioxide optical catalytic environment purification material according to claim 1, it is characterised in that
In step S3, the intensity of ultraviolet light is 12-18W, and wavelength is 254nm.
4. the preparation method of a kind of titanium dioxide optical catalytic environment purification material according to claim 1, it is characterised in that
The condition being dried in step S4 is to be dried 24-60 hours at 90-110 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611043922.6A CN106552676A (en) | 2016-11-24 | 2016-11-24 | A kind of preparation method of titanium dioxide optical catalytic environment purification material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611043922.6A CN106552676A (en) | 2016-11-24 | 2016-11-24 | A kind of preparation method of titanium dioxide optical catalytic environment purification material |
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| CN106552676A true CN106552676A (en) | 2017-04-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349965A (en) * | 2017-06-16 | 2017-11-17 | 中国科学院上海硅酸盐研究所 | A kind of adsorption photochemical catalysis hydrogel material and its application in the cooperative photocatalysis sewage production hydrogen of heavy metallic poison is reversed |
| CN111500194A (en) * | 2020-05-27 | 2020-08-07 | 新昌县希亭科技有限公司 | Hydrophobic modified epoxy resin anticorrosive paint and preparation method thereof |
| CN115178253A (en) * | 2022-07-01 | 2022-10-14 | 九江学院 | Natural vermiculite loaded rare earth double-doped up-conversion TiO 2 Preparation method of composite photocatalyst |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727901A (en) * | 2016-04-29 | 2016-07-06 | 河海大学 | Preparation method of titanium dioxide photocatalytic adsorbing material |
| CN105772030A (en) * | 2016-03-25 | 2016-07-20 | 南昌航空大学 | Preparation method of efficient composite photocatalytic material |
-
2016
- 2016-11-24 CN CN201611043922.6A patent/CN106552676A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772030A (en) * | 2016-03-25 | 2016-07-20 | 南昌航空大学 | Preparation method of efficient composite photocatalytic material |
| CN105727901A (en) * | 2016-04-29 | 2016-07-06 | 河海大学 | Preparation method of titanium dioxide photocatalytic adsorbing material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349965A (en) * | 2017-06-16 | 2017-11-17 | 中国科学院上海硅酸盐研究所 | A kind of adsorption photochemical catalysis hydrogel material and its application in the cooperative photocatalysis sewage production hydrogen of heavy metallic poison is reversed |
| CN111500194A (en) * | 2020-05-27 | 2020-08-07 | 新昌县希亭科技有限公司 | Hydrophobic modified epoxy resin anticorrosive paint and preparation method thereof |
| CN115178253A (en) * | 2022-07-01 | 2022-10-14 | 九江学院 | Natural vermiculite loaded rare earth double-doped up-conversion TiO 2 Preparation method of composite photocatalyst |
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Application publication date: 20170405 |