CN107321365A - The porous silica load composite photo catalyst material and its preparation method of full spectral response - Google Patents
The porous silica load composite photo catalyst material and its preparation method of full spectral response Download PDFInfo
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- CN107321365A CN107321365A CN201710556710.6A CN201710556710A CN107321365A CN 107321365 A CN107321365 A CN 107321365A CN 201710556710 A CN201710556710 A CN 201710556710A CN 107321365 A CN107321365 A CN 107321365A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000000463 material Substances 0.000 title claims abstract description 33
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 28
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 26
- 230000004044 response Effects 0.000 title claims abstract description 23
- 230000003595 spectral effect Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 title claims abstract description 9
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002114 nanocomposite Substances 0.000 claims abstract description 19
- 238000001228 spectrum Methods 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 52
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 230000003647 oxidation Effects 0.000 claims description 33
- 238000007254 oxidation reaction Methods 0.000 claims description 33
- 239000002210 silicon-based material Substances 0.000 claims description 33
- 238000011068 loading method Methods 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 19
- 150000001621 bismuth Chemical class 0.000 claims description 18
- 239000011259 mixed solution Substances 0.000 claims description 15
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 12
- 150000003751 zinc Chemical class 0.000 claims description 9
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 claims description 6
- 229910000380 bismuth sulfate Inorganic materials 0.000 claims description 6
- BEQZMQXCOWIHRY-UHFFFAOYSA-H dibismuth;trisulfate Chemical compound [Bi+3].[Bi+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BEQZMQXCOWIHRY-UHFFFAOYSA-H 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 230000004298 light response Effects 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 229960001763 zinc sulfate Drugs 0.000 claims description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 3
- 229910017604 nitric acid Inorganic materials 0.000 claims 3
- 229910052797 bismuth Inorganic materials 0.000 claims 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 4
- 239000000809 air pollutant Substances 0.000 abstract description 3
- 231100001243 air pollutant Toxicity 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 235000014692 zinc oxide Nutrition 0.000 description 29
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 10
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical class [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 description 6
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012163 sequencing technique Methods 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B01J35/39—
-
- B01J35/60—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
Nano composite photo catalyst material and preparation method thereof is loaded the invention discloses a kind of porous silica of full spectral response.The material includes silica matrices and is supported on matrix hole and the ZnO on surface, Bi2O3, Bi2S3And rGO, wherein ZnO content is 0.1wt% 10wt%, Bi2O3Content be 0.1wt% 10wt%, Bi2S3Content be that 0.1wt% 10wt%, rGO content is 0.001wt% 0.01wt%, the composite has full spectrum light catalytic response to ultraviolet light, visible ray and near infrared light.The porous silica load nano composite photo catalyst material for the full spectral response that the present invention is provided can be used for preparing air-purifying net, adhesive force is stronger, change affected by environment is smaller, material and air contact area are big, permeability is strong, and the composite photo-catalyst of attachment has hypersorption to sunshine, improves the utilization rate of solar energy, catalytic efficiency is enhanced, so as to effectively degraded air pollutants.
Description
Technical field
Nano composite photo catalyst material and its preparation side are loaded the present invention relates to a kind of porous silica of full spectral response
Method, belongs to environmental protection technical field.
Background technology
Photocatalyst can apply to air cleaning.Common photo-catalytic filtering screen is only loaded with a kind of photocatalyst, or is only capable of
Absorb ultraviolet light or visible ray, it is impossible to effectively utilize near infrared light；Or be only capable of absorbing part luminous energy and can not be complete
Absorb solar energy.In order to overcome the shortcoming low to solar energy utilization ratio, the present invention disclose one kind can absorb ultraviolet light, it is visible
The full spectrum light catalyst air purifying net of light and black light；This air-purifying net can be built in air purifier, air-conditioning it is logical
Wind system is placed directly within interior space progress air cleaning.
The content of the invention
Nano composite photo catalyst material is loaded it is an object of the invention to provide a kind of porous silica of full spectral response
And preparation method thereof, to overcome deficiency of the prior art.
To realize aforementioned invention purpose, the technical solution adopted by the present invention includes：
The embodiment of the present invention provides a kind of silica supported nano composite photo catalyst material of full spectral response, and it includes：
Silica matrices and it is supported on matrix hole and the ZnO on surface, Bi2O3, Bi2S3And rGO, wherein ZnO content is
0.1wt%-10wt%, Bi2O3Content be 0.1wt%-10wt%, Bi2S3Content be 0.1wt%-10wt%, rGO's contains
Measure as 0.001wt%-0.01wt%, the composite has full spectrum light catalysis to ultraviolet light, visible ray and near infrared light
Response.
Further, the aperture size of the silica matrices is 1mm-3mm.
The embodiment of the present invention also provides a kind of porous silica load nano composite photo catalyst material of full spectral response
Preparation method, including：
Step one：Soluble zinc salt is added in finely dispersed rGO solution, afterwards adjust solution pH to alkalescence simultaneously
Add porous oxidation silicon materials to be well mixed, then mixed solution is placed in closed container 6- is reacted under the conditions of 100-180 DEG C
10h, is made loading ZnO/rGO porous oxidation silicon materials after filtering；
Step 2：Soluble bismuth salt is added in finely dispersed rGO solution, afterwards adjust solution pH to alkalescence simultaneously
The porous oxidation silicon materials of loading ZnO/rGO made from step one are added, then mixed solution is placed in closed container in 100-
6-10h is reacted under the conditions of 180 DEG C, loading ZnO/rGO and Bi is made after filtering2O3/ rGO porous oxidation silicon materials；
Step 3：Soluble bismuth salt and thiocarbamide are added in finely dispersed rGO solution, adjust afterwards the pH of solution to
Alkalescence simultaneously adds loading ZnO/rGO and Bi made from step 22O3/ rGO porous oxidation silicon materials, then mixed solution is placed in
6-10h is reacted in closed container under the conditions of 100-180 DEG C, loading ZnO/rGO, Bi is made after filtering2O3/ rGO and Bi2S3/
RGO porous oxidation silicon materials, i.e., the silica supported nano composite photo catalyst material of described full spectral response.
More preferred, the soluble zinc salt in the step one includes any in zinc nitrate, zinc chloride and zinc sulfate
One or more kinds of combinations, but not limited to this.
Further, the concentration of soluble zinc salt is 0.01-1.0mol/L in the step one.
Further, rGO content is 0.001wt%- in finely dispersed rGO solution in the step one
0.01wt%.
More preferred, the soluble bismuth salt in the step 2 includes appointing in bismuth nitrate, bismuth chloride and bismuth sulfate
The combinations for one or more of anticipating, but not limited to this
Further, the concentration of soluble bismuth salt is 0.01-1.0mol/L in the step 2.
Further, rGO content is 0.001wt%- in finely dispersed rGO solution in the step 2
0.01wt%.
More preferred, soluble bismuth salt includes any in bismuth nitrate, bismuth chloride and bismuth sulfate in the step 3
One or more kinds of combinations, but not limited to this.
Further, the concentration of soluble bismuth salt is 0.01-1.0mol/L in the step 3.
Further, rGO content is 0.001wt%- in finely dispersed rGO solution in the step 3
0.01wt%.
Further, the concentration of thiocarbamide is 0.03-3.0mol/L in the step 3.
Further, concentration is used to adjust the pH of solution to alkalescence for 0.01-1.0mol/L NaOH.
Compared with prior art, advantages of the present invention includes：Full spectrum that the present invention is provided (including visible ray, infrared light
And near infrared light) response silica supported nano composite photo catalyst material, available for preparing air-purifying net, adhesive force compared with
By force, change affected by environment is smaller, and material is big with air contact area, and permeability is strong, and the composite photo-catalyst adhered to is to too
Sunlight has hypersorption, improves the utilization rate of solar energy, enhances catalytic efficiency, so as to effectively degraded air pollutants.
Embodiment
In view of deficiency of the prior art, inventor is able to propose the present invention's through studying for a long period of time and largely putting into practice
Technical scheme.The technical scheme, its implementation process and principle etc. will be further explained as follows.
The embodiment of the present invention provides a kind of porous silica load nano composite photo catalyst material of full spectral response, and it is wrapped
Include：Silica matrices and it is supported on matrix hole and the ZnO on surface, Bi2O3, Bi2S3And rGO, wherein ZnO content is
0.1wt%-10wt%, Bi2O3Content be 0.1wt%-10wt%, Bi2S3Content be 0.1wt%-10wt%, rGO's contains
Measure as 0.001wt%-0.01wt%, the composite has full spectrum light catalysis to ultraviolet light, visible ray and near infrared light
Response.
Further, the aperture size of the silica matrices is 1mm-3mm.
The embodiment of the present invention also provides a kind of porous silica load nano composite photo catalyst material of full spectral response
Preparation method, including：
Step one：Soluble zinc salt is added in finely dispersed rGO solution, afterwards adjust solution pH to alkalescence simultaneously
Add porous oxidation silicon materials to be well mixed, then mixed solution is placed in closed container 6- is reacted under the conditions of 100-180 DEG C
10h, is made loading ZnO/rGO porous oxidation silicon materials after filtering；
Step 2：Soluble bismuth salt is added in finely dispersed rGO solution, afterwards adjust solution pH to alkalescence simultaneously
The porous oxidation silicon materials of loading ZnO/rGO made from step one are added, then mixed solution is placed in closed container in 100-
6-10h is reacted under the conditions of 180 DEG C, loading ZnO/rGO and Bi is made after filtering2O3/ rGO porous oxidation silicon materials；
Step 3：Soluble bismuth salt and thiocarbamide are added in finely dispersed rGO solution, adjust afterwards the pH of solution to
Alkalescence simultaneously adds loading ZnO/rGO and Bi made from step 22O3/ rGO porous oxidation silicon materials, then mixed solution is placed in
6-10h is reacted in closed container under the conditions of 100-180 DEG C, loading ZnO/rGO, Bi is made after filtering2O3/ rGO and Bi2S3/
RGO porous oxidation silicon materials, i.e., the silica supported nano composite photo catalyst material of described full spectral response.
More preferred, the soluble zinc salt in the step one includes any in zinc nitrate, zinc chloride and zinc sulfate
One or more kinds of combinations, but not limited to this.
Further, the concentration of soluble zinc salt is 0.01-1.0mol/L in the step one.
Further, rGO content is 0.001wt%- in finely dispersed rGO solution in the step one
0.01wt%.
More preferred, the soluble bismuth salt in the step 2 includes appointing in bismuth nitrate, bismuth chloride and bismuth sulfate
The combinations for one or more of anticipating, but not limited to this.
Further, the concentration of soluble bismuth salt is 0.01-1.0mol/L in the step 2.
Further, rGO content is 0.001wt%- in finely dispersed rGO solution in the step 2
0.01wt%.
More preferred, soluble bismuth salt includes any in bismuth nitrate, bismuth chloride and bismuth sulfate in the step 3
One or more kinds of combinations, but not limited to this.
Further, the concentration of soluble bismuth salt is 0.01-1.0mol/L in the step 3.
Further, rGO content is 0.001wt%- in finely dispersed rGO solution in the step 3
0.01wt%.
Further, the concentration of thiocarbamide is 0.03-3.0mol/L in the step 3.
The preparation method of the porous silica load nano composite photo catalyst material for the full spectral response that the present invention is provided
Three steps are an organic whole, be can not be split, any one one step can not realize the function of full spectral response, and
Each step sequencing is arbitrarily adjusted, and the quality of material is not influenceed；The material is used to prepare the full spectrum of air-purifying net energy
Absorb the effective purification realized under solar energy, illumination to air.
The porous silica load nano composite photo catalyst material for the full spectral response that the present invention is provided can be used for preparing sky
Gas purifying net, the material is big with air contact area, and permeability is strong, and the composite photo-catalyst of attachment has full suction to sunshine
Receive, improve the utilization rate of solar energy, enhance catalytic efficiency, so as to effectively degraded air pollutants.
Below in conjunction with some embodiments the technical solution of the present invention is further explained explanation.
Embodiment 1
Step one：10mL0.1mol/L zinc nitrate is added in finely dispersed rGO solution, used afterwards
10mL0.1mol/L NaOH regulation solution pH to alkalescence and add 10g porous oxidations silicon materials be well mixed, then will mixing
Solution, which is placed in closed container under the conditions of 100 DEG C, reacts 10h, and loading ZnO/rGO porous oxidation silicon materials are made after filtering；
Step 2：10mL0.1mol/L bismuth nitrates are added in finely dispersed rGO solution, used afterwards
The pH of 10mL0.1mol/L NaOH regulation solution adds the porous oxygen of 10g loading ZnOs/rGO made from step one to alkalescence
Silicon nitride material, then mixed solution is placed in closed container under the conditions of 100 DEG C reacts 10h, loading ZnO/rGO is made after filtering
And Bi2O3/ rGO porous oxidation silicon materials；
Step 3：10mL0.1mol/L bismuth nitrates are added in finely dispersed rGO solution, used afterwards
The pH of 10mL0.1mol/L NaOH regulation solution adds 10g loading ZnOs/rGO and Bi made from step 2 to alkalescence2O3/
RGO porous oxidation silicon materials, then mixed solution is placed in closed container under the conditions of 100 DEG C reacts 10h, it is made after filtering
Loading ZnO/rGO, Bi2O3/ rGO and Bi2S3/ rGO porous oxidation silicon materials, i.e., described full spectral response it is silica supported
Nano composite photo catalyst material.
Embodiment 2
Step one：15mL0.1mol/L zinc nitrate is added in finely dispersed rGO solution, used afterwards
10mL0.1mol/L NaOH regulation solution pH to alkalescence and add 10g porous oxidations silicon materials be well mixed, then will mixing
Solution, which is placed in closed container under the conditions of 180 DEG C, reacts 6h, and loading ZnO/rGO porous oxidation silicon materials are made after filtering；
Step 2：15mL0.1mol/L bismuth nitrates are added in finely dispersed rGO solution, used afterwards
The pH of 10mL0.1mol/L NaOH regulation solution adds the porous oxygen of 10g loading ZnOs/rGO made from step one to alkalescence
Silicon nitride material, then mixed solution is placed in closed container under the conditions of 180 DEG C reacts 6h, loading ZnO/rGO is made after filtering
And Bi2O3/ rGO porous oxidation silicon materials；
Step 3：15mL0.1mol/L bismuth nitrates are added in finely dispersed rGO solution, used afterwards
The pH of 10mL0.1mol/L NaOH regulation solution adds 10g loading ZnOs/rGO and Bi made from step 2 to alkalescence2O3/
RGO porous oxidation silicon materials, then mixed solution is placed in closed container under the conditions of 180 DEG C reacts 6h, it is made after filtering
Loading ZnO/rGO, Bi2O3/ rGO and Bi2S3/ rGO porous oxidation silicon materials, i.e., described full spectral response it is silica supported
Nano composite photo catalyst material.
Embodiment 3
Step one：20mL0.1mol/L zinc nitrate is added in finely dispersed rGO solution, used afterwards
15mL0.1mol/L NaOH regulation solution pH to alkalescence and add 10g porous oxidations silicon materials be well mixed, then will mixing
Solution, which is placed in closed container under the conditions of 140 DEG C, reacts 8h, and loading ZnO/rGO porous oxidation silicon materials are made after filtering；
Step 2：20mL0.1mol/L bismuth nitrates are added in finely dispersed rGO solution, used afterwards
The pH of 15mL0.1mol/L NaOH regulation solution adds the porous oxygen of 10g loading ZnOs/rGO made from step one to alkalescence
Silicon nitride material, then mixed solution is placed in closed container under the conditions of 140 DEG C reacts 8h, loading ZnO/rGO is made after filtering
And Bi2O3/ rGO porous oxidation silicon materials；
Step 3：20mL0.1mol/L bismuth nitrates are added in finely dispersed rGO solution, used afterwards
The pH of 15mL0.1mol/L NaOH regulation solution adds 10g loading ZnOs/rGO and Bi made from step 2 to alkalescence2O3/
RGO porous oxidation silicon materials, then mixed solution is placed in closed container under the conditions of 140 DEG C reacts 8h, it is made after filtering
Loading ZnO/rGO, Bi2O3/ rGO and Bi2S3/ rGO porous oxidation silicon materials, i.e., described full spectral response it is silica supported
Nano composite photo catalyst material.
It should be appreciated that the technical concepts and features of above-described embodiment only to illustrate the invention, its object is to allow be familiar with this
The personage of item technology can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all
The equivalent change or modification made according to spirit of the invention, should all be included within the scope of the present invention.
Claims (7)
1. a kind of porous silica load nano composite photo catalyst material of full spectral response, it is characterised in that the material bag
Include：Silica matrices and it is supported on matrix hole and the ZnO on surface, Bi2O3, Bi2S3And rGO, wherein ZnO content is
0.1wt%-10wt%, Bi2O3Content be 0.1wt%-10wt%, Bi2S3Content be 0.1wt%-10wt%, rGO's contains
Measure as 0.001wt%-0.01wt%, the composite has full spectrum light catalysis to ultraviolet light, visible ray and near infrared light
Response.
2. material according to claim 1, it is characterised in that：The aperture size of the silica matrices is 1mm-3mm.
3. the porous silica load nano composite photo catalyst material of the full spectral response according to any one of claim 1-2
The preparation method of material, it is characterised in that including：
Step one：Soluble zinc salt is added in finely dispersed rGO solution, the pH of solution is adjusted afterwards to alkalescence and is added
Porous oxidation silicon materials are well mixed, then mixed solution are placed in closed container 6-10h is reacted under the conditions of 100-180 DEG C,
Loading ZnO/rGO porous oxidation silicon materials are made after filtering；
Step 2：Soluble bismuth salt is added in finely dispersed rGO solution, the pH of solution is adjusted afterwards to alkalescence and is added
The porous oxidation silicon materials of loading ZnO/rGO made from step one, then mixed solution is placed in closed container in 100-180 DEG C
Under the conditions of react 6-10h, after filtering be made loading ZnO/rGO and Bi2O3/ rGO porous oxidation silicon materials；
Step 3：Soluble bismuth salt and thiocarbamide are added in finely dispersed rGO solution, the pH of solution is adjusted afterwards to alkalescence
And add loading ZnO/rGO and Bi made from step 22O3/ rGO porous oxidation silicon materials, then mixed solution is placed in closed
6-10h is reacted in container under the conditions of 100-180 DEG C, loading ZnO/rGO, Bi is made after filtering2O3/ rGO and Bi2S3/ rGO's
Porous oxidation silicon materials, i.e., the silica supported nano composite photo catalyst material of described full spectral response.
4. preparation method according to claim 3, it is characterised in that：Soluble zinc salt in the step one includes nitric acid
Any one in zinc, zinc chloride and zinc sulfate or two or more combinations；And/or, soluble zinc salt in the step one
Concentration is 0.01-1.0mol/L；And/or, rGO content is in finely dispersed rGO solution in the step one
0.001wt%-0.01wt%.
5. preparation method according to claim 3, it is characterised in that：Soluble bismuth salt in the step 2 includes nitric acid
Any one in bismuth, bismuth chloride and bismuth sulfate or two or more combinations；And/or, soluble bismuth salt in the step 2
Concentration be 0.01-1.0mol/L；And/or, rGO content is in finely dispersed rGO solution in the step 2
0.001wt%-0.01wt%.
6. preparation method according to claim 3, it is characterised in that：Soluble bismuth salt includes nitric acid in the step 3
Any one in bismuth, bismuth chloride and bismuth sulfate or two or more combinations；And/or, soluble bismuth salt in the step 3
Concentration be 0.01-1.0mol/L；And/or, it is described rGO in uniform rGO solution is dissipated in three step by step content be
0.001wt%-0.01wt%；And/or, the concentration of thiocarbamide is 0.03-3.0mol/L in the step 3.
7. preparation method according to claim 3, it is characterised in that：Concentration is used to be adjusted for 0.01-1.0mol/L NaOH
The pH of solution is saved to alkalescence.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160118A (en) * | 2021-11-03 | 2022-03-11 | 易鹤翔 | Water-resistant nano tin oxide wide-spectral-response photocatalyst porous material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114160118A (en) * | 2021-11-03 | 2022-03-11 | 易鹤翔 | Water-resistant nano tin oxide wide-spectral-response photocatalyst porous material and preparation method thereof |
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