CN105032399A - Pucherite-stannic oxide complex photocatalyst as well as preparation method and application thereof - Google Patents
Pucherite-stannic oxide complex photocatalyst as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN105032399A CN105032399A CN201510501080.3A CN201510501080A CN105032399A CN 105032399 A CN105032399 A CN 105032399A CN 201510501080 A CN201510501080 A CN 201510501080A CN 105032399 A CN105032399 A CN 105032399A
- Authority
- CN
- China
- Prior art keywords
- solution
- preparation
- pucherite
- catalyst
- composite photo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a pucherite-stannic oxide complex photocatalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) dissolving tin chloride and bismuth nitrate in a nitric acid solution, fully stirring, and then preparing the solution into an acid mixed solution; dissolving ammonium metavanadate in a sodium hydroxide solution, fully stirring, and preparing an alkaline sodium vanadate solution; (2) under the stirring condition, dropwise adding the mixed solution into the sodium vanadate solution, so that a luminous yellow solution is generated; (3) dropwise adding an alkaline solution into the luminous yellow solution, adjusting the PH value to be above 8, performing supersonic vibration, and performing hydrothermal reaction on the mixed solution; (4) when a hydrothermal product is cooled to room temperature, cleaning by using deionized water, filtering, and drying, so that obtained powder is the pucherite-stannic oxide complex photocatalyst. The preparation method is simple, the cost is low, the repeatability is good, and the mass production requirement can be well met; the prepared photocatalyst can perform photocatalytic degradation on methyl blue under visible light.
Description
Technical field
The present invention relates to inorganic nano photocatalyst material field, particularly a kind of composite photo-catalyst and preparation method thereof.
Background technology
In the past few decades, photocatalysis technology has been widely used in the field of degraded toxic organic pollutant and photodissociation aquatic products hydrogen energy source.TiO
2because its high chemical stability, low cost, nontoxicity and become current most widely used semi-conducting material.But, TiO
2but be restricted in actual applications, because TiO
2band-gap energy be 3.2eV, this just means TiO
2can only utilize ultraviolet light, and only account for 4% at sun emission spectrum medium ultraviolet light, other solar spectrals remaining can not get sufficient utilization.Therefore, a lot of scholar was devoted to develop the catalyst material that visible ray drives in the last few years, for fully utilize solar energy efficiently exactly.
In the last few years, band-gap energy only had the monoclinic crystal pucherite (m-BiVO of 2.4eV
4) attention of more and more scholar is obtained as a kind of very promising visible light-responded semi-conducting material.Much research finds BiVO
4under visible light conditions, have extraordinary photoresponse ability, simultaneously it can also effectively be degraded some organic pollutants.But simple pucherite is also faced with some problems as photochemical catalyst, such as: specific area is too small, adsorption capacity is poor, and photo-generated carrier is difficult to be separated, and the easy compound of electron hole pair etc., these defects all limit the photocatalysis performance of pucherite.
Summary of the invention
The problem to be solved in the present invention is, it is too small that traditional pucherite monolithic catalyst has specific area, adsorption capacity is poor, and photo-generated carrier is difficult to be separated, the defects such as the easy compound of electron hole pair, these defects all limit the photocatalysis performance of pucherite, construct one and can promote that electric charge is efficiently separated, the tin oxide nano particle with highlight catalytic active modifies composite bismuth vanadium photocatalyst and preparation method thereof, in this composite photo-catalyst, tin oxide nano particle is compound in the surface of pucherite discretely, be conducive to exposing highly active tin oxide-pucherite boundary, at environment pollution control, the fields such as the energy are with a wide range of applications, the preparation method of this composite photo-catalyst is simple, with low cost, reproducible simultaneously, can meet volume production requirement well.
Technical scheme of the present invention is as follows:
A preparation method for pucherite-tin oxide composite photo-catalyst, comprises the steps:
(1) stannic chloride and bismuth nitrate are dissolved in salpeter solution, after fully stirring, are mixed with acidic mixed solution; The ammonium metavanadate getting molal quantity identical with bismuth nitrate is dissolved in sodium hydroxide solution, after fully stirring, is mixed with alkaline sodium vanadate solution;
(2) under agitation, the mixed solution of step (1) is dropwise added in sodium vanadate solution, makes it generate bright yellow solution;
(3) toward in bright yellow solution, dropwise add alkaline solution, adjusted to ph is more than 8, more than ultrasonic vibration 20min, and mixed liquor is carried out hydro-thermal reaction;
(4) treat that hydrothermal product is cooled to room temperature, by washed with de-ionized water, dry gained powder and pucherite-tin oxide composite photo-catalyst after filtering.
The condition of described hydro-thermal reaction is under 120 ~ 180 DEG C of conditions, reaction 20 ~ 30h.
The condition of described hydro-thermal reaction is under 150 DEG C of conditions, reaction 24h.
Described in step (1), the mol ratio of stannic chloride and bismuth nitrate is (2 ~ 4): 7.
The mol ratio of described stannic chloride and bismuth nitrate is 3:7.
Described in step (3), alkaline solution is sodium hydroxide solution, and pH is adjusted to 10.
The ultrasonic vibration time described in step (4) is 30min; Described drying condition is for being placed in baking oven, and treatment temperature is 60 DEG C, and the processing time is 24h.
The concentration of step (1) described nitric acid is 4M, and the concentration of sodium hydroxide solution is 4M.
Pucherite-tin oxide composite photo-catalyst that said method is obtained, for carrying out Methyl blueness under visible light.
Compared with prior art, tool of the present invention has the following advantages:
(1) the present invention constructs the discrete composite photo-catalyst being compound in pucherite of a kind of tin oxide nano particle, this is compared with traditional block pucherite monolithic catalyst, composite catalyst possesses larger specific area, is conducive to the catalytic activity improving catalyst;
(2) present invention achieves the compound of pucherite and tin oxide, define pucherite-tin oxide heterogeneous structure, this structure is very beneficial for the separation of photo-generated carrier, reduces the combined efficiency of electron hole pair, improves the catalytic performance of catalyst; And due to the existence of heterojunction structure, photo-generated carrier can be transferred to above the matrix of catalyst material adsorption from heterostructure interface efficiently, thus one fast oxidation-reduction process can be more prone to realize.
(3) preparation method of the present invention is simple, low, with low cost, reproducible to the requirement of equipment, can meet volume production requirement well; The present invention is based on the feature of composite, both pucherite and tin oxide have been carried out compound, under visible light, Methyl blueness (MB) can be carried out.
Accompanying drawing explanation
Fig. 1 is the XRD collection of illustrative plates of the pucherite-tin oxide composite photo-catalyst prepared by embodiment 1;
Fig. 2 is the pucherite-tin oxide composite photo-catalyst Methyl blueness design sketch under visible light prepared by embodiment 1, is referenced as blank, pure tin oxide and pucherite.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail, but embodiments of the present invention are not limited thereto, for the technological parameter do not indicated especially, can refer to routine techniques and carry out.
Embodiment 1
Under normal temperature and pressure, take the Bi (NO of 3.39g
3)
35H
2the SnCl of O and 1.05g
4.5H
2o powder, in beaker A, adds the nitric acid that 20mL concentration is 4M, obtains settled solution after fully stirring; Separately take the NH with 0.82g
4vO
3in beaker B, add the NaOH that 20mL concentration is 4M, after fully stirring, obtain settled solution; Then when rapid stirring, solution A is dropwise added in B solution, obtain jonquilleous solution, add the NaOH solution that concentration is 1M, adjusted to ph is 10, after ultrasonic vibration 30min, is transferred in the hydrothermal reaction kettle of 100mL by this bright yellow solution, under 150 DEG C of conditions, hydro-thermal reaction 24h.To be cooled to room temperature, by product with after washed with de-ionized water several, the baking oven being placed in 60 DEG C processes 24h.To be cooled to room temperature, by gained powder agate mortar porphyrize, obtain pucherite-tin oxide composite catalyst powder 2.54g.
Embodiment 2
Under normal temperature and pressure, take the Bi (NO of 3.41g
3)
35H
2the SnCl of O and 1.06g
4.5H
2o powder, in beaker A, adds the nitric acid that 20mL concentration is 4M, obtains settled solution after fully stirring; Separately take the NH with 0.83g
4vO
3in beaker B, add the NaOH that 20mL concentration is 4M, after fully stirring, obtain settled solution; Then when rapid stirring, solution A is dropwise added in B solution, obtain jonquilleous solution, add the NaOH solution that concentration is 1M, adjusted to ph is 10, after ultrasonic vibration 30min, is transferred in the hydrothermal reaction kettle of 100mL by this bright yellow solution, under 150 DEG C of conditions, hydro-thermal reaction 24h.To be cooled to room temperature, by product with after washed with de-ionized water several, the baking oven being placed in 60 DEG C processes 24h.To be cooled to room temperature, by gained powder agate mortar porphyrize, obtain pucherite-tin oxide composite catalyst powder 2.41g.
Embodiment 3
Under normal temperature and pressure, take the Bi (NO of 6.79g
3)
35H
2the SnCl of O and 2.11g
4.5H
2o powder, in beaker A, adds the nitric acid that 20mL concentration is 4M, obtains settled solution after fully stirring; Separately take the NH with 1.65g
4vO
3in beaker B, add the NaOH that 20mL concentration is 4M, after fully stirring, obtain settled solution; Then when rapid stirring, solution A is dropwise added in B solution, obtain jonquilleous solution, add the NaOH solution that concentration is 1M, adjusted to ph is 10, after ultrasonic vibration 30min, is transferred in the hydrothermal reaction kettle of 100mL by this bright yellow solution, under 150 DEG C of conditions, hydro-thermal reaction 24h.To be cooled to room temperature, by product with after washed with de-ionized water several, the baking oven being placed in 60 DEG C processes 24h.To be cooled to room temperature, by gained powder agate mortar porphyrize, obtain pucherite-tin oxide composite catalyst powder 4.98g.
Claims (10)
1. a preparation method for pucherite-tin oxide composite photo-catalyst, is characterized in that, comprise the steps:
(1) stannic chloride and bismuth nitrate are dissolved in salpeter solution, after fully stirring, are mixed with acidic mixed solution; The ammonium metavanadate getting molal quantity identical with bismuth nitrate is dissolved in sodium hydroxide solution, after fully stirring, is mixed with alkaline sodium vanadate solution;
(2) under agitation, the mixed solution of step (1) is dropwise added in sodium vanadate solution, makes it generate bright yellow solution;
(3) toward in bright yellow solution, dropwise add alkaline solution, adjusted to ph is more than 8, more than ultrasonic vibration 20min, and mixed liquor is carried out hydro-thermal reaction;
(4) treat that hydrothermal product is cooled to room temperature, by washed with de-ionized water, dry gained powder and pucherite-tin oxide composite photo-catalyst after filtering.
2. preparation method according to claim 1, is characterized in that, the condition of described hydro-thermal reaction is under 120 ~ 180 DEG C of conditions, reaction 20 ~ 30h.
3. preparation method according to claim 2, is characterized in that, the condition of described hydro-thermal reaction is under 150 DEG C of conditions, reaction 24h.
4. the preparation method according to claim 1 or 2 or 3, is characterized in that, described in step (1), the mol ratio of stannic chloride and bismuth nitrate is (2 ~ 4): 7.
5. preparation method according to claim 4, is characterized in that, the mol ratio of described stannic chloride and bismuth nitrate is 3:7.
6. the preparation method according to claim 1 or 2 or 3, is characterized in that, described in step (3), alkaline solution is sodium hydroxide solution, and pH is adjusted to 10.
7. the preparation method according to claim 1 or 2 or 3, is characterized in that, the ultrasonic vibration time described in step (4) is 30min; Described drying condition is for being placed in baking oven, and treatment temperature is 60 DEG C, and the processing time is 24h.
8. the preparation method according to claim 1 or 2 or 3, is characterized in that, the concentration of step (1) described nitric acid is 4M, and the concentration of sodium hydroxide solution is 4M.
9. pucherite-tin oxide composite photo-catalyst that method described in any one of claim 1 ~ 8 is obtained.
10. the application of composite photo-catalyst described in claim 9, is characterized in that, described composite photo-catalyst is used for carrying out Methyl blueness under visible light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501080.3A CN105032399B (en) | 2015-08-14 | 2015-08-14 | A kind of pucherite tin oxide composite photo-catalyst and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501080.3A CN105032399B (en) | 2015-08-14 | 2015-08-14 | A kind of pucherite tin oxide composite photo-catalyst and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105032399A true CN105032399A (en) | 2015-11-11 |
| CN105032399B CN105032399B (en) | 2017-06-06 |
Family
ID=54439715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501080.3A Active CN105032399B (en) | 2015-08-14 | 2015-08-14 | A kind of pucherite tin oxide composite photo-catalyst and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105032399B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107580A (en) * | 2018-10-10 | 2019-01-01 | 安徽瑞和新材料有限公司 | A kind of magnetism pucherite/bismuth titanates/ferroso-ferric oxide photochemical catalyst and the preparation method and application thereof |
| CN110935437A (en) * | 2019-12-18 | 2020-03-31 | 兰州大学 | Synthetic method of Z-type tri-tin tetroxide/bismuth vanadate quantum dot composite photocatalyst capable of fully hydrolyzing water |
| CN111979561A (en) * | 2019-05-21 | 2020-11-24 | 南京理工大学 | SnOx/BiVO4Electrode, preparation method thereof and application of electrode in photoelectrocatalysis hydrogen peroxide synthesis |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004181296A (en) * | 2002-11-29 | 2004-07-02 | Kri Inc | Photocatalyst, its precursor sol solution and manufacturing method for the photocatalyst |
| CN103464138A (en) * | 2013-08-15 | 2013-12-25 | 陕西科技大学 | Ytterbium doped bismuth vanadate visible light photocatalyst, and preparation method and application thereof |
-
2015
- 2015-08-14 CN CN201510501080.3A patent/CN105032399B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004181296A (en) * | 2002-11-29 | 2004-07-02 | Kri Inc | Photocatalyst, its precursor sol solution and manufacturing method for the photocatalyst |
| CN103464138A (en) * | 2013-08-15 | 2013-12-25 | 陕西科技大学 | Ytterbium doped bismuth vanadate visible light photocatalyst, and preparation method and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107580A (en) * | 2018-10-10 | 2019-01-01 | 安徽瑞和新材料有限公司 | A kind of magnetism pucherite/bismuth titanates/ferroso-ferric oxide photochemical catalyst and the preparation method and application thereof |
| CN111979561A (en) * | 2019-05-21 | 2020-11-24 | 南京理工大学 | SnOx/BiVO4Electrode, preparation method thereof and application of electrode in photoelectrocatalysis hydrogen peroxide synthesis |
| CN111979561B (en) * | 2019-05-21 | 2022-08-26 | 南京理工大学 | SnOx/BiVO 4 Electrode, preparation method thereof and application of electrode in photoelectrocatalysis hydrogen peroxide synthesis |
| CN110935437A (en) * | 2019-12-18 | 2020-03-31 | 兰州大学 | Synthetic method of Z-type tri-tin tetroxide/bismuth vanadate quantum dot composite photocatalyst capable of fully hydrolyzing water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105032399B (en) | 2017-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104128194B (en) | A kind of p-n junction Bi2O3/BiPO4Hetero-junctions visible light responsive photocatalytic thin-film material and preparation method thereof | |
| CN103285861B (en) | An Ag3VO4/TiO2 compound nano-wire having visible light activity, a preparation method and applications thereof | |
| CN103240073B (en) | Zn<2+>-doped BiVO4 visible-light-driven photocatalyst and preparation method thereof | |
| WO2021212923A1 (en) | P-n heterojunction composite material supported on surface of nickel foam, preparation method therefor and use thereof | |
| CN103263920B (en) | TiO2-loaded high dispersion metal catalyst and preparation method thereof | |
| CN105214689A (en) | A kind of TiO 2/ CdS/ Graphene composite photocatalyst material and preparation method thereof | |
| CN106622293B (en) | A kind of H-TiO2/CdS/Cu2-xThe preparation method of S nanobelt | |
| CN105056956B (en) | A kind of visible light-responded iron titanate sodium light catalysis material and its preparation method and application | |
| CN102626616A (en) | Preparation method of vanadate photocatalytic material | |
| CN104289240A (en) | Preparation method of Ag3PO4/BiVO4 heterojunction composite photocatalyst | |
| CN105032399B (en) | A kind of pucherite tin oxide composite photo-catalyst and its preparation method and application | |
| CN106693996A (en) | Preparation method and application for bismuth sulfide-bismuth ferrate composite visible-light photocatalyst | |
| CN104226320B (en) | The preparation method of vanadium boron codope titanium dioxide and nickel oxide composite photo-catalyst | |
| CN103816902B (en) | A kind of magnetic carries TiO 2the preparation method of photocatalysis composite | |
| CN105817244B (en) | A kind of AgI/ β Bi2O3‑Bi2O2CO3Photochemical catalyst and its preparation method and application | |
| CN102500406B (en) | Iron, nitrogen and fluoride co-doped titanium dioxide (TiO2) photocatalyst and application thereof in degrading organic pollutants in visible light | |
| CN102389836A (en) | Polyaniline/titanium dioxide/clay nanometer composite photocatalyst and preparation method thereof | |
| CN109133259A (en) | A method of utilizing light anode activation sulfuric acid salt treatment waste water and by-product hydrogen | |
| CN113559841A (en) | Nano CuO/GO/BiVO4Heterogeneous heterojunction photocatalyst, preparation method and application thereof | |
| CN111151238B (en) | Bismuth vanadate heterojunction BiVO4/Bi25VO40Material, preparation method and application thereof | |
| CN105568309A (en) | Preparation method for photoelectrode of photoelectrochemical cell | |
| CN103894163A (en) | High-performance nanometer TiO2 photocatalyst material and preparation method thereof | |
| CN105233821A (en) | Strontium-doped and silver-doped nanometer titanium dioxide visible light catalyst | |
| CN104689818A (en) | ZnO/Ag@AgInO2 heterogeneous Z type photocatalytic material and preparation method thereof | |
| CN110550661A (en) | preparation method of bismuth tungstate visible-light-driven photocatalyst and application of bismuth tungstate visible-light-driven photocatalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |