CN108837833A - Fe adulterates TiO2The preparation of catalyst - Google Patents
Fe adulterates TiO2The preparation of catalyst Download PDFInfo
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- CN108837833A CN108837833A CN201810696749.2A CN201810696749A CN108837833A CN 108837833 A CN108837833 A CN 108837833A CN 201810696749 A CN201810696749 A CN 201810696749A CN 108837833 A CN108837833 A CN 108837833A
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- glucose
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- 239000003054 catalyst Substances 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 20
- 239000008103 glucose Substances 0.000 claims description 20
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 11
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 10
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- 238000005119 centrifugation Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 5
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 5
- 238000004090 dissolution Methods 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 5
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 229910052571 earthenware Inorganic materials 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 4
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract description 4
- 230000001699 photocatalysis Effects 0.000 abstract description 4
- 239000010936 titanium Substances 0.000 abstract description 4
- 229910052719 titanium Inorganic materials 0.000 abstract description 4
- -1 iron ion Chemical class 0.000 abstract description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005215 recombination Methods 0.000 abstract description 2
- 230000006798 recombination Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 235000010215 titanium dioxide Nutrition 0.000 description 8
- 238000002604 ultrasonography Methods 0.000 description 8
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention relates to a kind of Fe to adulterate TiO2The preparation of catalyst, the present invention adulterates a small amount of iron into nano-titanium dioxide, by the sample of doping compared with pure titinium dioxide, the absorption region of light widens into visible-range, the electron-hole recombination probability of generation is also because the doping of iron is effectively reduced, it is modified that iron ion doping is carried out to titanium deoxide catalyst, it can reach the purpose for improving photocatalytic activity of the titanium deoxide catalyst in visible-range, to verify the nano-titanium dioxide of Fe2O3 doping in visible-range, there is good photoresponse photocatalytic activities.
Description
Technical field
The present invention relates to Fe to adulterate TiO2The preparation of catalyst belongs to chemical material field.
Technical background
Titanium dioxide is a kind of transition metal oxide, and crystal state, partial size and chemical component are to TiO2It is relatively close
Degree has different influences.In three kinds of various forms of structures of titanium dioxide, most stable of rutile-type, compared with anatase facies pattern and
The anatase titanium dioxide of plate has intensive structure feature, to show on hardness, density and index of refraction more preferable
Characteristic.Rutile type titanium white is with good stability and relative density is larger, because this 2 titania molecules are constituted
Rutile titanium dioxide elementary cell, and anatase titanium dioxide is made of 4 titania molecules.Rutile type titanium
White powder has smaller, more compact elementary cell, refractive index with higher and dielectric constant and low heat conductivity.Titanium dioxide is certainly
The design feature of body determines its dielectric constant with higher, so showing good characteristic in terms of electrology characteristic.When
When semiconductor titanium dioxide is placed in external electric field, because of the interaction between its inner ion, very strong internal electric field is generated, from
And lead to the deformation of electron orbit appearance largely outside ion, while ion itself is also affected and generates larger
Position move.Rutile TiO2Dielectric constant it is related with the deviation of crystal, such as：Work as TiO2When crystal is parallel to c,
Dielectric constant is 180；When crystal is in three shaft angles, dielectric constant 90, average crystalline powder is 114.
Summary of the invention
The present invention relates to a kind of Fe to adulterate TiO2The preparation of catalyst, preparation process include：2.7g glucose is accurately weighed,
35ml deionized water is added into the beaker for fill glucose, the beaker equipped with glucose solution is placed in ultrasonic cleaner
Middle ultrasound 15-30min 0.25mmol titanium sulfate is first added into above-mentioned beaker, then again until glucose all dissolution
0.25mmol ferric nitrate is added into beaker, takes 50ml hydrothermal reaction kettle, take out polytetrafluoroethyllining lining cleaned with deionized water,
Ultrasound is simultaneously dried, and prepared solution is fitted into the polytetrafluoroethyllining lining of 50ml, liner is fitted into hydrothermal reaction kettle simultaneously
Close sealing, is put into 180 degrees Celsius of electric heating constant-temperature blowing drying box and is fired, and the control firing time is 16-22 hours,
It is cooled to room temperature, is first cleaned with deionized water, is then then transferred in centrifuge tube, adjusting electric centrifuge revolving speed is 2500 turns,
Centrifugation 3-5 minutes every time repeat aforesaid operations three times, and washing is washed secondary with dehydrated alcohol later three times, and centrifuge speed is
2000 turns, centrifugation 2-4 minutes, take out the precipitated product in centrifuge tube, are transferred in small beaker, product is existed with glass bar every time
Beaker bottom tiling is come, and the small beaker for filling product is transferred in 80 DEG C of baking oven, is dried 12 hours, waits until drying time
Terminate, take out product and be put into mortar, product is ground to powdered white powder in collection mortar, is poured into crucible,
Crucible is placed in Muffle furnace and is fired 3 hours, temperature control is 500 DEG C, final to obtain white product.
The present invention adulterates a small amount of iron into nano-titanium dioxide, by the sample of doping compared with pure titinium dioxide, light
Absorption region widens into visible-range, and the electron-hole recombination probability of generation is also because the doping of iron is effectively reduced.
Iron ion doping is carried out to titanium deoxide catalyst to be modified, and be can reach and is improved titanium deoxide catalyst in visible-range
The purpose of photocatalytic activity.To verify the nano-titanium dioxide of Fe2O3 doping in visible-range, there is good light to ring
Answer photocatalytic activity.
Specific embodiment
Below in conjunction with specific embodiment in the present invention principle and feature be described, example is intended merely to pair
Further explanation explanation of the present invention, is not supposed to be a limitation to the present invention.
Embodiment 1
2.7g glucose is accurately weighed, 35ml deionized water is added into the beaker for fill glucose, glucose will be housed
The beaker of solution is placed in ultrasound 15min in ultrasonic cleaner, until glucose all dissolution, first into above-mentioned beaker
0.25mmol titanium sulfate is added, 0.25mmol ferric nitrate is then added into beaker again, takes 50ml hydrothermal reaction kettle, takes out poly- four
Vinyl fluoride liner cleans with deionized water, ultrasound and dries, and prepared solution is fitted into the polytetrafluoroethyllining lining of 50ml,
Liner is fitted into hydrothermal reaction kettle and is closely sealed, is put into 180 degrees Celsius of electric heating constant-temperature blowing drying box and is fired,
Controlling the firing time is 16 hours, is cooled to room temperature, is first cleaned with deionized water, is then then transferred in centrifuge tube, adjusts electricity
Dynamic centrifuge speed is 2500 turns, every time centrifugation 3 minutes, repeats aforesaid operations three times, is washed after washing three times with dehydrated alcohol
Wash it is secondary, centrifuge speed be 2000 turns, every time centrifugation 2 minutes, take out centrifuge tube in precipitated product, be transferred to small beaker
It is interior, product is come in beaker bottom tiling with glass bar, the small beaker for filling product is transferred in 80 DEG C of baking oven, is dried
It 12 hours, until drying time terminates, takes out product and is put into mortar, product is ground to powdered, collect white in mortar
Color powder, pours into crucible, and crucible is placed in Muffle furnace and is fired 3 hours, and temperature control is 500 DEG C, final to obtain white production
Object.
Embodiment 2
2.7g glucose is accurately weighed, 35ml deionized water is added into the beaker for fill glucose, glucose will be housed
The beaker of solution is placed in ultrasound 30min in ultrasonic cleaner, until glucose all dissolution, first into above-mentioned beaker
0.25mmol titanium sulfate is added, 0.25mmol ferric nitrate is then added into beaker again, takes 50ml hydrothermal reaction kettle, takes out poly- four
Vinyl fluoride liner cleans with deionized water, ultrasound and dries, and prepared solution is fitted into the polytetrafluoroethyllining lining of 50ml,
Liner is fitted into hydrothermal reaction kettle and is closely sealed, is put into 180 degrees Celsius of electric heating constant-temperature blowing drying box and is fired,
Controlling the firing time is 22 hours, is cooled to room temperature, is first cleaned with deionized water, is then then transferred in centrifuge tube, adjusts electricity
Dynamic centrifuge speed is 2500 turns, every time centrifugation 5 minutes, repeats aforesaid operations three times, is washed after washing three times with dehydrated alcohol
Wash it is secondary, centrifuge speed be 2000 turns, every time centrifugation 4 minutes, take out centrifuge tube in precipitated product, be transferred to small beaker
It is interior, product is come in beaker bottom tiling with glass bar, the small beaker for filling product is transferred in 80 DEG C of baking oven, is dried
It 12 hours, until drying time terminates, takes out product and is put into mortar, product is ground to powdered, collect white in mortar
Color powder, pours into crucible, and crucible is placed in Muffle furnace and is fired 3 hours, and temperature control is 500 DEG C, final to obtain white production
Object.
Embodiment 3
2.7g glucose is accurately weighed, 35ml deionized water is added into the beaker for fill glucose, glucose will be housed
The beaker of solution is placed in ultrasound 20min in ultrasonic cleaner, until glucose all dissolution, first into above-mentioned beaker
0.25mmol titanium sulfate is added, 0.25mmol ferric nitrate is then added into beaker again, takes 50ml hydrothermal reaction kettle, takes out poly- four
Vinyl fluoride liner cleans with deionized water, ultrasound and dries, and prepared solution is fitted into the polytetrafluoroethyllining lining of 50ml,
Liner is fitted into hydrothermal reaction kettle and is closely sealed, is put into 180 degrees Celsius of electric heating constant-temperature blowing drying box and is fired,
Controlling the firing time is 20 hours, is cooled to room temperature, is first cleaned with deionized water, is then then transferred in centrifuge tube, adjusts electricity
Dynamic centrifuge speed is 2500 turns, every time centrifugation 4 minutes, repeats aforesaid operations three times, is washed after washing three times with dehydrated alcohol
Wash it is secondary, centrifuge speed be 2000 turns, every time centrifugation 3 minutes, take out centrifuge tube in precipitated product, be transferred to small beaker
It is interior, product is come in beaker bottom tiling with glass bar, the small beaker for filling product is transferred in 80 DEG C of baking oven, is dried
It 12 hours, until drying time terminates, takes out product and is put into mortar, product is ground to powdered, collect white in mortar
Color powder, pours into crucible, and crucible is placed in Muffle furnace and is fired 3 hours, and temperature control is 500 DEG C, final to obtain white production
Object.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention range, all in the present invention
Spirit and principle within, any modification, equivalent substitution, improvement and etc. done be somebody's turn to do included in protection scope of the present invention
Within.
Claims (2)
1.Fe adulterates TiO2The preparation of catalyst, which is characterized in that preparation process includes：2.7g glucose is accurately weighed, to filling
35ml deionized water is added in the beaker of glucose, the beaker equipped with glucose solution is placed in ultrasonic cleaner ultrasonic
15-30min 0.25mmol titanium sulfate is first added into above-mentioned beaker, then again to beaker until glucose all dissolution
Middle addition 0.25mmol ferric nitrate, takes 50ml hydrothermal reaction kettle, take out polytetrafluoroethyllining lining clean with deionized water, it is ultrasonic simultaneously
Drying, prepared solution is fitted into the polytetrafluoroethyllining lining of 50ml, liner is fitted into hydrothermal reaction kettle and is closely sealed
Mouthful, it is put into 180 degrees Celsius of electric heating constant-temperature blowing drying box and is fired, the control firing time is 16-22 hours, is cooled to
Room temperature is first cleaned with deionized water, is then then transferred in centrifuge tube, adjust electric centrifuge revolving speed be 2500 turns, every time from
The heart 3-5 minutes, repeat aforesaid operations three times, washing three times after wash with dehydrated alcohol it is secondary, centrifuge speed be 2000 turns,
Centrifugation 2-4 minutes every time are taken out the precipitated product in centrifuge tube, are transferred in small beaker, with glass bar product in bottom of the beaker
Portion's tiling is come, and the small beaker for filling product is transferred in 80 DEG C of baking oven, is dried 12 hours, until drying time terminates,
It takes out product to be put into mortar, product is ground to powdered white powder in collection mortar, is poured into crucible, by earthenware
Crucible is placed in Muffle furnace and fires 3 hours, and temperature control is 500 DEG C, final to obtain white product.
2. preparation method according to claim 1, which is characterized in that burning the only time is 16-22 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810696749.2A CN108837833A (en) | 2018-06-29 | 2018-06-29 | Fe adulterates TiO2The preparation of catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810696749.2A CN108837833A (en) | 2018-06-29 | 2018-06-29 | Fe adulterates TiO2The preparation of catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108837833A true CN108837833A (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810696749.2A Withdrawn CN108837833A (en) | 2018-06-29 | 2018-06-29 | Fe adulterates TiO2The preparation of catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115073119A (en) * | 2022-06-24 | 2022-09-20 | 昆明理工大学 | Visible light catalytic light-transmitting concrete material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794164A (en) * | 2012-07-19 | 2012-11-28 | 湖南先科环保有限公司 | Preparation method of magnetic doped nano titanium dioxide |
| CN103537286A (en) * | 2013-10-28 | 2014-01-29 | 湛江师范学院 | Single-step hydrothermal micro-emulsion method for preparing iron-doped nano titanium dioxide powder |
| CN107335434A (en) * | 2017-06-15 | 2017-11-10 | 河南科技学院 | A kind of nano-TiO of double pentagonal pyramid cylindricality looks of Fe doping2Photochemical catalyst preparation method |
| CN107552051A (en) * | 2017-10-09 | 2018-01-09 | 河南科技学院 | The nano-TiO of Fe doping2Application of the photochemical catalyst in p-nitrophenol of degrading |
-
2018
- 2018-06-29 CN CN201810696749.2A patent/CN108837833A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794164A (en) * | 2012-07-19 | 2012-11-28 | 湖南先科环保有限公司 | Preparation method of magnetic doped nano titanium dioxide |
| CN103537286A (en) * | 2013-10-28 | 2014-01-29 | 湛江师范学院 | Single-step hydrothermal micro-emulsion method for preparing iron-doped nano titanium dioxide powder |
| CN107335434A (en) * | 2017-06-15 | 2017-11-10 | 河南科技学院 | A kind of nano-TiO of double pentagonal pyramid cylindricality looks of Fe doping2Photochemical catalyst preparation method |
| CN107552051A (en) * | 2017-10-09 | 2018-01-09 | 河南科技学院 | The nano-TiO of Fe doping2Application of the photochemical catalyst in p-nitrophenol of degrading |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115073119A (en) * | 2022-06-24 | 2022-09-20 | 昆明理工大学 | Visible light catalytic light-transmitting concrete material and preparation method and application thereof |
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Application publication date: 20181120 |
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