CN102764666A - Nitrogen and cerium co-doped titanium dioxide hollow sphere photo-catalyst and preparation method thereof - Google Patents
Nitrogen and cerium co-doped titanium dioxide hollow sphere photo-catalyst and preparation method thereof Download PDFInfo
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- CN102764666A CN102764666A CN2012102355254A CN201210235525A CN102764666A CN 102764666 A CN102764666 A CN 102764666A CN 2012102355254 A CN2012102355254 A CN 2012102355254A CN 201210235525 A CN201210235525 A CN 201210235525A CN 102764666 A CN102764666 A CN 102764666A
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Abstract
The invention discloses a nitrogen and cerium co-doped titanium dioxide hollow sphere photo-catalyst and a preparation method thereof. The hollow sphere photo-catalyst is controllable in wall thickness and good in monodispersity, the diameter of hollow spheres is 300 to 500 nanometers, the wall thickness is 10 to 50 nanometers, and the photo-catalyst has high photo-catalytic efficiency for simulated organic rhodamine B pollutant in water. The method comprises the following steps of: preparing silicon dioxide microspheres by using an in-situ hydrolysis technology, coating a layer of nitrogen and cerium co-doped titanium dioxide on the surface of the silicon dioxide microspheres, removing the silicon dioxide template by using a method of corroding with a corrosive, and finally obtaining the nitrogen and cerium co-doped titanium dioxide photo-catalyst material. The nitrogen and cerium co-doped titanium dioxide hollow sphere photo-catalyst prepared by using the method is uniform in granularity distribution, large in specific surface area and high photo-catalytic reaction efficiency.
Description
Technical field
The invention belongs to industrial chemicals photochemical catalyst preparing technical field, relate to a kind of nano-hollow ball catalysis material, be specifically related to a kind of nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether, the invention still further relates to this Preparation of catalysts method.
Background technology
Photocatalysis technology is an emerging green technology that progressively grows up from the seventies in 20th century; The characteristic that it utilizes the conductor oxidate material can be excited activation at the condition lower surface of illumination, oxidation Decomposition organic matter, reducing heavy metal ion, kill bacteria and elimination peculiar smell effectively.In numerous catalysis materials, TiO
2Because nontoxic, harmless, non-corrosiveness that self had; Can use repeatedly; Can be with organic matter permineralization Cheng Shui and inorganic ions; Characteristics such as non-secondary pollution have traditional high temperature, the incomparable tempting glamour of conventional catalyst, in the environmental contaminants process field broad prospect of application are arranged.
In recent years, for effectively improving TiO
2The light-catalyzed reaction efficient of photocatalyst material and expand its application at visible light wave range, researchers adopt several different methods to prepare titanium dioxide base composite photocatalyst material.Wherein, titanium dioxide nonmetal and metal-doped is one of emphasis of titanium dioxide optical catalyst investigation of materials in recent years.Nonmetal and metal can use and prevent the compound of electronics and hole as the electron capture center, thereby improves the reaction efficiency of catalyst, can play the effect that reduces the titanium dioxide energy gap simultaneously again, expands its purpose in the visible region use.
Summary of the invention
The purpose of this invention is to provide a kind of nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether, changed the molecular structure of titanium dioxide, improved the performance of titanium dioxide; Make the wave band that excites of titanium dioxide, expand to visible region, as long as light wave is below 800nm from ultraviolet region; Without ultraviolet light; Just can excitation be arranged to it, and performance strengthens greatly, decomposing formaldehyde, benzene, ammonia, organic volatile etc. are to people this and the harmful gas of environment quickly and efficiently; Improve the antibacterial deodorizing ability, utilized powder to can be made into the dispersion liquid of various concentration simultaneously.
Another object of the present invention provides the preparation method that a kind of nitrogen cerium is mixed the titanium dioxide hollow ball photochemical catalyst altogether.
The technical scheme that the present invention adopted is, a kind of nitrogen cerium is mixed the titanium dioxide hollow ball photochemical catalyst altogether, and the diameter of hollow ball is 300 ~ 500nm, and wall thickness is 10 ~ 50nm.
Another technical scheme that the present invention adopted is, a kind of nitrogen cerium is mixed the preparation method of titanium dioxide hollow ball photochemical catalyst altogether, and the hollow ball photochemical catalyst for preparing, the diameter of hollow ball are 300 ~ 500nm, and wall thickness is 10 ~ 50nm;
Specifically implement according to following steps:
Step 1: absolute ethyl alcohol is dissolved in deionized water obtains the ethanol solution that quality-volumetric concentration is 0.27gL; Ethyl orthosilicate is joined in the ethanol solution; The volume ratio of ethyl orthosilicate and ethanol solution is 9:175, magnetic agitation, and under stirring, in mixed solution, adding mass concentration then is the ammoniacal liquor of 25wt%; The volume ratio of mixed solution and ammoniacal liquor is 184:9; Continue stirring reaction 10h, centrifugalize and clean successively 3 times with absolute ethyl alcohol and deionized water, drying obtains lily silicon-dioxide powdery in 80 ℃ of baking ovens;
Step 2: according to quality-volumetric concentration is that 16gL-160g/L takes by weighing the silicon-dioxide powdery that step 1 makes and is scattered in the absolute ethyl alcohol, and ultrasonic dispersion 30min is labeled as solution A; According to quality-volumetric concentration is that 0.003g/L-0.077g/L takes by weighing butyl titanate and joins in the absolute ethyl alcohol, is labeled as solution B, then under stirring; Solution B joined in the solution A mix; Add ammonium nitrate and cerous nitrate simultaneously, continue to stir 1 ~ 3h, and ageing 3h;
Step 3: get the mixed liquor that obtains after step 2 ageing and join and have in the teflon-lined water heating kettle; Carry out hydro-thermal reaction, reaction naturally cools to room temperature after finishing, and obtains a milky white liquid; With this white liquid centrifugation; And wash respectively 3 times with deionized water and absolute ethyl alcohol, at last the gained solid product is put into 60 ~ 80 ℃ dry 12 hours of vacuum drying chamber, obtain white powder;
Step 4: according to quality-volumetric concentration is 1/30g/L; Taking by weighing the white powder that step 3 makes is scattered in the deionized water; Add corrosive agent and corrosion 8h under stirring; The remaining solid product with deionized water centrifuge washing 3 times, and is put into 80 ℃ dry 12 hours of vacuum drying chamber, make the nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether.
Characteristic of the present invention also is,
The mass ratio of ammonium nitrate and mixed solution is 1.25 * 10 in the step 2 wherein
-4-3.64 * 10
-4: 1, the mass ratio of cerous nitrate and mixed solution is 4.55 * 10
-4-0.001:1.
Hydro-thermal reaction in the step 3 wherein, reaction temperature are 120-200 ℃, 30 ~ 90 minutes reaction time.
The mass ratio of corrosive agent and white powder is 0.4:1 in the step 4 wherein.
Corrosive agent in the step 4 wherein adopts a kind of in NaOH or the sodium borohydride, perhaps two kinds mixture.
The invention has the beneficial effects as follows: the process that the present invention adopted is simple, is suitable for large-scale production, and raw materials such as employed ethyl orthosilicate and butyl titanate are easy to get, and is pollution-free.The product particle size homogeneous that the present invention is prepared, pattern is regular, and the nitrogen cerium is mixed the titanium dioxide hollow ball photochemical catalyst altogether and had higher light-catalyzed reaction efficient.
Description of drawings
Fig. 1 mixes the X ray diffracting spectrum of titanium dioxide hollow ball altogether for the embodiment of the invention 1 prepared nitrogen cerium;
Fig. 2 mixes the titanium dioxide hollow ball transmission electron microscope photo altogether for the embodiment of the invention 2 prepared nitrogen ceriums;
Fig. 3 mixes the degradation curve that the titanium dioxide hollow ball photochemical catalyst is removed rhodamine B in the water body altogether for the embodiment of the invention 4 prepared nitrogen ceriums.
The specific embodiment
The 18mL ethyl orthosilicate is joined in the mixed solution of 260mL absolute ethyl alcohol and 90mL deionized water, and magnetic agitation.Under stirring, in mixed liquor, add 18mL ammoniacal liquor (25wt%) then, continue stirring reaction 10h.Centrifugalize and clean successively 3 times with absolute ethyl alcohol and deionized water.Drying obtains lily silicon-dioxide powdery in 80 ℃ of baking ovens at last.Take by weighing prepared silicon-dioxide powdery 0.5g and be scattered in the 65mL absolute ethyl alcohol, ultrasonic dispersion 30min is labeled as solution A, takes by weighing the 0.5g butyl titanate again and joins in the 10mL absolute ethyl alcohol, is labeled as solution B.Under stirring, solution B is joined in the solution A then, add the ammonium nitrate of 20mg and the cerous nitrate of 20mg simultaneously, continue to stir 1h, and ageing 3h.Get after the ageing mixed liquor 50mL of gained and join and have in the teflon-lined water heating kettle, and place many flux of MDS-10 type closed microwave chem workstation to carry out hydro-thermal reaction, reaction temperature is 160 ℃, 60 minutes reaction time.Reaction naturally cools to room temperature after finishing; Obtain a milky white liquid, this white liquid is centrifugalized, and wash respectively for several times with deionized water and absolute ethyl alcohol; At last the gained solid product is put into 60 ℃ dry 12 hours of vacuum drying chamber, obtained white powder.Taking by weighing the prepared white powder 0.5g powder of step 3 is scattered in the 15mL deionized water; Add the 0.2g corrosive agent and corrosion 8h under stirring; With the remaining solid product for several times with the deionized water centrifuge washing; And dry 12 hours of the vacuum drying chamber of putting into 80 ℃, finally make the nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether.Fig. 1 mixes the XRD figure spectrum of titanium dioxide hollow ball photochemical catalyst altogether for prepared nitrogen cerium; As can be seen from the figure; The diffraction maximum that the nitrogen cerium is mixed titanium dioxide does not altogether have the diffraction maximum of unadulterated titanium dioxide sharp-pointed; And the diffraction peak widthization occurs, explain because the introducing of nitrogen cerium has caused diminishing of titanium dioxide granule size.
The 18mL ethyl orthosilicate is joined in the mixed solution of 260mL absolute ethyl alcohol and 90mL deionized water, and magnetic agitation.Under stirring, in mixed liquor, add 18mL ammoniacal liquor (25wt%) then, continue stirring reaction 10h.Centrifugalize and clean successively 3 times with absolute ethyl alcohol and deionized water.Drying obtains lily silicon-dioxide powdery in 80 ℃ of baking ovens at last.Take by weighing prepared silicon-dioxide powdery 0.5g and be scattered in the 65mL absolute ethyl alcohol, ultrasonic dispersion 30min is labeled as solution A, takes by weighing the 0.5g butyl titanate again and joins in the 10mL absolute ethyl alcohol, is labeled as solution B.Under stirring, solution B is joined in the solution A then, add the ammonium nitrate of 20mg and the cerous nitrate of 40mg simultaneously, continue to stir 1h, and ageing 3h.Get after the ageing mixed liquor 50mL of gained and join and have in the teflon-lined water heating kettle, and place many flux of MDS-10 type closed microwave chem workstation to carry out hydro-thermal reaction, reaction temperature is 200 ℃, 60 minutes reaction time.Reaction naturally cools to room temperature after finishing; Obtain a milky white liquid, this white liquid is centrifugalized, and wash respectively for several times with deionized water and absolute ethyl alcohol; At last the gained solid product is put into 60 ℃ dry 12 hours of vacuum drying chamber, obtained white powder.Taking by weighing the prepared white powder 0.5g powder of step 3 is scattered in the 15mL deionized water; Add the 0.2g corrosive agent and corrosion 8h under stirring; With the remaining solid product for several times with the deionized water centrifuge washing; And dry 12 hours of the vacuum drying chamber of putting into 80 ℃, finally make the nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether.Fig. 2 mixes the transmission electron microscope photo of titanium dioxide hollow ball photochemical catalyst altogether for prepared nitrogen cerium.As can be seen from the figure, the prepared titanium dioxide hollow ball photochemical catalyst of mixing altogether is monodispersed hollow ball, and diameter is about 400nm, wall thickness 10～30nm, and pattern is regular, the size homogeneous, and silica is by corrosion fully.
The 18mL ethyl orthosilicate is joined in the mixed solution of 260mL absolute ethyl alcohol and 90mL deionized water, and magnetic agitation.Under stirring, in mixed liquor, add 18mL ammoniacal liquor (25wt%) then, continue stirring reaction 10h.Centrifugalize and clean successively 3 times with absolute ethyl alcohol and deionized water.Drying obtains lily silicon-dioxide powdery in 80 ℃ of baking ovens at last.Take by weighing prepared silicon-dioxide powdery 0.1g and be scattered in the 30mL absolute ethyl alcohol, ultrasonic dispersion 30min is labeled as solution A, takes by weighing the 1.0g butyl titanate again and joins in the 10mL absolute ethyl alcohol, is labeled as solution B.Under stirring, solution B is joined in the solution A then, add the ammonium nitrate of 5mg and the cerous nitrate of 40mg simultaneously, continue to stir 1h, and ageing 3h.Get after the ageing mixed liquor 50mL of gained and join and have in the teflon-lined water heating kettle, and place many flux of MDS-10 type closed microwave chem workstation to carry out hydro-thermal reaction, reaction temperature is 120 ℃, 30 minutes reaction time.Reaction naturally cools to room temperature after finishing; Obtain a milky white liquid, this white liquid is centrifugalized, and wash respectively for several times with deionized water and absolute ethyl alcohol; At last the gained solid product is put into 60 ℃ dry 12 hours of vacuum drying chamber, obtained white powder.Taking by weighing the prepared white powder 0.5g powder of step 3 is scattered in the 15mL deionized water; Add the 0.2g corrosive agent and corrosion 8h under stirring; With the remaining solid product for several times with the deionized water centrifuge washing; And dry 12 hours of the vacuum drying chamber of putting into 80 ℃, finally make the nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether.
The 18mL ethyl orthosilicate is joined in the mixed solution of 260mL absolute ethyl alcohol and 90mL deionized water, and magnetic agitation.Under stirring, in mixed liquor, add 18mL ammoniacal liquor (25wt%) then, continue stirring reaction 10h.Centrifugalize and clean successively 3 times with absolute ethyl alcohol and deionized water.Drying obtains lily silicon-dioxide powdery in 80 ℃ of baking ovens at last.Take by weighing prepared silicon-dioxide powdery 1.0g and be scattered in the 100mL absolute ethyl alcohol, ultrasonic dispersion 30min is labeled as solution A, takes by weighing the 0.1g butyl titanate again and joins in the 10mL absolute ethyl alcohol, is labeled as solution B.Under stirring, solution B is joined in the solution A then, add the ammonium nitrate of 40mg and the cerous nitrate of 5mg simultaneously, continue to stir 3h, and ageing 3h.Get after the ageing mixed liquor 50mL of gained and join and have in the teflon-lined water heating kettle, and place many flux of MDS-10 type closed microwave chem workstation to carry out hydro-thermal reaction, reaction temperature is 200 ℃, 90 minutes reaction time.Reaction naturally cools to room temperature after finishing; Obtain a milky white liquid, this white liquid is centrifugalized, and wash respectively for several times with deionized water and absolute ethyl alcohol; At last the gained solid product is put into 80 ℃ dry 12 hours of vacuum drying chamber, obtained white powder.Taking by weighing the prepared white powder 0.5g powder of step 3 is scattered in the 15mL deionized water; Add the 0.2g corrosive agent and corrosion 8h under stirring; With the remaining solid product for several times with the deionized water centrifuge washing; And dry 12 hours of the vacuum drying chamber of putting into 80 ℃, finally make the nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether.Fig. 3 mixes the degradation curve that the titanium dioxide hollow ball photochemical catalyst is removed rhodamine B in the water body altogether for prepared nitrogen cerium.Can find out obviously that from degradation curve the nitrogen cerium of preparation mixes the titanium dioxide hollow ball photochemical catalyst altogether rhodamine B the water body is had higher degradation efficiency.
Claims (6)
1. a nitrogen cerium is mixed the titanium dioxide hollow ball photochemical catalyst altogether, it is characterized in that, the diameter of hollow ball is 300 ~ 500nm, and wall thickness is 10 ~ 50nm.
2. the preparation method that the nitrogen cerium is mixed the titanium dioxide hollow ball photochemical catalyst altogether is characterized in that, the hollow ball photochemical catalyst for preparing, the diameter of hollow ball are 300 ~ 500nm, and wall thickness is 10 ~ 50nm;
Specifically implement according to following steps:
Step 1: absolute ethyl alcohol is dissolved in deionized water obtains the ethanol solution that quality-volumetric concentration is 0.27g/L; Ethyl orthosilicate is joined in the ethanol solution; The volume ratio of ethyl orthosilicate and ethanol solution is 9:175, magnetic agitation, and under stirring, in mixed solution, adding mass concentration then is the ammoniacal liquor of 25wt%; The volume ratio of mixed solution and ammoniacal liquor is 184:9; Continue stirring reaction 10h, centrifugalize and clean successively 3 times with absolute ethyl alcohol and deionized water, drying obtains lily silicon-dioxide powdery in 80 ℃ of baking ovens;
Step 2: according to quality-volumetric concentration is that 16gL-160g/L takes by weighing the silicon-dioxide powdery that step 1 makes and is scattered in the absolute ethyl alcohol, and ultrasonic dispersion 30min is labeled as solution A; According to quality-volumetric concentration is that 0.003g/L-0.077g/L takes by weighing butyl titanate and joins in the absolute ethyl alcohol, is labeled as solution B, then under stirring; Solution B joined in the solution A mix; Add ammonium nitrate and cerous nitrate simultaneously, continue to stir 1 ~ 3h, and ageing 3h;
Step 3: get the mixed liquor that obtains after step 2 ageing and join and have in the teflon-lined water heating kettle; Carry out hydro-thermal reaction, reaction naturally cools to room temperature after finishing, and obtains a milky white liquid; With this white liquid centrifugation; And wash respectively 3 times with deionized water and absolute ethyl alcohol, at last the gained solid product is put into 60 ~ 80 ℃ dry 12 hours of vacuum drying chamber, obtain white powder;
Step 4: according to quality-volumetric concentration is 1/30g/L; Taking by weighing the white powder that step 3 makes is scattered in the deionized water; Add corrosive agent and corrosion 8h under stirring; The remaining solid product with deionized water centrifuge washing 3 times, and is put into 80 ℃ dry 12 hours of vacuum drying chamber, make the nitrogen cerium and mix the titanium dioxide hollow ball photochemical catalyst altogether.
3. nitrogen cerium according to claim 2 is mixed titanium dioxide hollow ball photochemical catalyst preparation method altogether, it is characterized in that, the mass ratio of ammonium nitrate and mixed solution is 1.25 * 10 in the described step 2
-4-3.64 * 10
-4: 1, the mass ratio of cerous nitrate and mixed solution is 4.55 * 10
-4-0.001:1.
4. nitrogen cerium according to claim 2 is mixed titanium dioxide hollow ball photochemical catalyst preparation method altogether, it is characterized in that, hydro-thermal reaction in the described step 3, reaction temperature are 120-200 ℃, 30 ~ 90 minutes reaction time.
5. nitrogen cerium according to claim 2 is mixed titanium dioxide hollow ball photochemical catalyst preparation method altogether, it is characterized in that, the mass ratio of corrosive agent and white powder is 0.4:1 in the described step 4.
6. mix titanium dioxide hollow ball photochemical catalyst preparation method altogether according to claim 2 or 5 described nitrogen ceriums, it is characterized in that, corrosive agent in the described step 4 adopts a kind of in NaOH or the sodium borohydride, perhaps two kinds mixture.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179442A (en) * | 2016-07-04 | 2016-12-07 | 河海大学 | A kind of cerium and nitrogen co-doped titanium dioxide optical catalyst and its preparation method and application |
| CN106582657A (en) * | 2016-12-21 | 2017-04-26 | 郑州师范学院 | TiO2-M-B synergetic photocatalyst and preparation method and application thereof |
| CN111282565A (en) * | 2020-03-24 | 2020-06-16 | 清华大学盐城环境工程技术研发中心 | MnCeOxPreparation method and application of catalyst |
| CN114570348A (en) * | 2022-03-02 | 2022-06-03 | 济南大学 | Titanium dioxide-based nano composite photocatalyst for photocatalytic degradation under irradiation of visible light and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030179798A1 (en) * | 2002-03-25 | 2003-09-25 | Fanuc Ltd. | Laser oscillator |
| CN101941736A (en) * | 2010-10-21 | 2011-01-12 | 北京科技大学 | Preparation method of echinoid titanium dioxide microspheres in single/double layer cavity structure |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030179798A1 (en) * | 2002-03-25 | 2003-09-25 | Fanuc Ltd. | Laser oscillator |
| CN101941736A (en) * | 2010-10-21 | 2011-01-12 | 北京科技大学 | Preparation method of echinoid titanium dioxide microspheres in single/double layer cavity structure |
Non-Patent Citations (2)
| Title |
|---|
| 《Powder Technology》 20110326 Chao Wang et al "Preparation of cerium and nitrogen co-doped titania hollow spheres with enhanced visible light photocatalytic performance" 第2节 1 第210卷, * |
| CHAO WANG ET AL: ""Preparation of cerium and nitrogen co-doped titania hollow spheres with enhanced visible light photocatalytic performance"", 《POWDER TECHNOLOGY》, vol. 210, 26 March 2011 (2011-03-26), pages 2, XP028208474, DOI: doi:10.1016/j.powtec.2011.03.015 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179442A (en) * | 2016-07-04 | 2016-12-07 | 河海大学 | A kind of cerium and nitrogen co-doped titanium dioxide optical catalyst and its preparation method and application |
| CN106582657A (en) * | 2016-12-21 | 2017-04-26 | 郑州师范学院 | TiO2-M-B synergetic photocatalyst and preparation method and application thereof |
| CN111282565A (en) * | 2020-03-24 | 2020-06-16 | 清华大学盐城环境工程技术研发中心 | MnCeOxPreparation method and application of catalyst |
| CN114570348A (en) * | 2022-03-02 | 2022-06-03 | 济南大学 | Titanium dioxide-based nano composite photocatalyst for photocatalytic degradation under irradiation of visible light and application thereof |
| CN114570348B (en) * | 2022-03-02 | 2024-03-12 | 济南大学 | Titanium dioxide-based nano composite photocatalyst for photocatalytic degradation by irradiation of visible light and application thereof |
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