CN106334550A - Method for preparing ZnTiO3 powder for treating dye wastewater - Google Patents
Method for preparing ZnTiO3 powder for treating dye wastewater Download PDFInfo
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- CN106334550A CN106334550A CN201610836434.4A CN201610836434A CN106334550A CN 106334550 A CN106334550 A CN 106334550A CN 201610836434 A CN201610836434 A CN 201610836434A CN 106334550 A CN106334550 A CN 106334550A
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- Prior art keywords
- zntio
- powder
- zntio3
- sol
- dyestuff
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- 239000000843 powder Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002351 wastewater Substances 0.000 title claims abstract description 11
- 229910003122 ZnTiO3 Inorganic materials 0.000 title abstract 10
- 239000002243 precursor Substances 0.000 claims abstract description 16
- 238000000137 annealing Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 239000000975 dye Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000007062 hydrolysis Effects 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 abstract 1
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000003980 solgel method Methods 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- 230000001988 toxicity Effects 0.000 abstract 1
- 231100000419 toxicity Toxicity 0.000 abstract 1
- 239000004246 zinc acetate Substances 0.000 abstract 1
- 230000001699 photocatalysis Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000007146 photocatalysis Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XQAXGZLFSSPBMK-UHFFFAOYSA-M [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride;trihydrate Chemical compound O.O.O.[Cl-].C1=CC(=[N+](C)C)C=C2SC3=CC(N(C)C)=CC=C3N=C21 XQAXGZLFSSPBMK-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a method for preparing ZnTiO3 powder for treating dye wastewater. The method comprises the following steps: firstly, preparing ZnTiO3 precursor sol from butyl titanate and zinc acetate as raw materials by using a sol-gel method, preparing ZnTiO3 powder by using a drying grinding method, and finally, performing later annealing treatment, thereby obtaining the ZnTiO3 powder. Scanning electron microscope observation tests on the ZnTiO3 powder prepared by using the method show that the particle sizes of the prepared ZnTiO3 powder are uniform, and the average diameter of the ZnTiO3 powder is up to 200nm. Under the radiation of a fluorescent lamp, testing results of a visible spectrophotometer show that the dye wastewater treatment efficiency of the ZnTiO3 powder prepared by using the method is up to 90% and greater. The method disclosed by the invention is simple and easy to control and good in feasibility, and the prepared ZnTiO3 powder is free of toxicity, free of secondary damage, and good in adsorption degradation property.
Description
Technical field
The invention belongs to technical field of material, specially a kind of zntio for processing waste water from dyestuff3The system of powder body
Preparation Method.
Background technology
21st century, solar energy, with its inexhaustible feature, becomes most potential new forms of energy.Cause
This, research and develop the research topic that suitable catalysis material has become more popular in recent years.In photocatalysis field, semi-conducting material by
In air or water pollution can be processed using Renewable resource solar energy, sunlight Direct Resolution Aquatic product can be utilized simultaneously again
Oxygen, realizes solar energy and is converted into electric energy, chemical energy, thus rapid drive has played the development of photocatalysis field.Using quasiconductor material
Material carries out photocatalytic degradation becomes the important directions of field of energy source environment protection research.
It is applied to photocatalysis field semi-conducting material at present and be mainly the wider n-type semiconductor of energy gap.This its
In, tio2Due to have the characteristics that nontoxic, stable, cheap, repeatable using becoming a kind of most widely used at present photocatalysis
Material.With respect to traditional catalysis material such as tio2, zno, zntio3Have narrower energy gap, about 3.06ev, its electricity
Energy needed for sub- transition is less, is more also easy to produce photo-generated carrier.Simultaneously because zntio3Belong to the three of bimetallic ion-oxygen compound
First system, its abundant phase structure gives its more probability changing and improving in terms of photocatalysis.In addition, its allusion quotation
The perovskite structure of type makes it be easy to be doped modified its light-catalysed characteristic extra-high with other metal ions, has higher
Researching value.
At present for zntio3Research mainly based on microwave ceramics, its photocatalytic activity relevant is then reported then relatively
Few.And for zntio3The photocatalytic activity of powder body and its corresponding determination crystal formation, domestic seldom to have document to carry out detailed
Thin report.Therefore at present with regard to zntio3The photocatalysis performance of powder body is one to be worth inquiring into and have the research of very big potentiality
Direction.
Content of the invention
In order to widen field of photocatalytic material, study zinc titanate photocatalysis performance further, the present invention proposes for locating
Bimetallic ion-oxygen compound zntio of reason waste water from dyestuff3Raw powder's production technology, is achieved through the following technical solutions:
A kind of zntio for processing waste water from dyestuff3Raw powder's production technology is as follows: first by sol-gal process preparation
zntio3Precursor sol, then passes through to dry the prepared zntio of dry gound method3Powder, finally carries out the annealing treatment of later stage to it
Reason obtains zntio3Powder body.
First, prepare zntio3The technological parameter of precursor sol:
Using sol-gal process, under magnetic agitation, configuration zinc concentration is 0.02～0.03mol l-1Dehydrated alcohol molten
Liquid, adds acid on a small quantity and adjusts ph value to 5；It is added dropwise over c thereto16h36o4Ti solution, the mol ratio making ti and zn is 1:1,
Shallow yellow transparent solution is obtained for a period of time after magnetic agitation.Form zntio after it being hydrolyzed at normal temperatures and pressures a period of time3
Precursor sol；
2nd, prepare zntio3The technological parameter of powder:
By zntio3Precursor sol is placed under the conditions of room temperature lucifuge 1 week and is formed gel, and gel is placed in drying baker
It is dried, obtains loose brown xerogel crystal, after grinding, form brown ceramic powder；
3rd, prepare zntio3The technological parameter of powder body:
By zntio3Powder is placed in Muffle furnace and is made annealing treatment when 350 DEG C, obtains zntio3Powder body.
The mechanism of action of the present invention is: when the energy h ν that semiconductor light-catalyst is absorbed by illumination is equal to or more than
During the energy gap of itself, the electrons in valence band are excited on the conduction band transitting to sky, and leave photohole in valence band,
Thus forming photo-generate electron-hole to (e--h+).The photohole on semiconductor light-catalyst surface excited by light and electronics are respectively
There is very strong oxidability and reducing power.
Beneficial effect
1st, material non-toxic, no secondary harm, absorption degradation is functional.
2nd, this preparation process is simple is easily-controllable, has good feasibility.
Brief description
Fig. 1 is the zntio of gained in embodiment3The scanning electron microscope image of powder body.
Fig. 2 is the zntio of gained in embodiment3Powder body and traditional tio2Photocatalyst is through ultraviolet-visible spectrophotometer
Test result.
Specific embodiment
The following examples can make those skilled in the art be more completely understood by the present invention, but limits never in any form
The present invention.
Embodiment 1
First, prepare zntio using sol-gal process3Precursor sol, by the zn (ch of 0.3g3coo)2·2h2O adds
Arrive about 50ml dehydrated alcohol (ch3ch2Oh, in), a small amount of hydrochloric acid, regulation ph value to 5 are added；It is added dropwise over thereto
c16h36o4Ti (mol ratio of ti and zn is 1:1), magnetic agitation 2h obtains shallow yellow transparent solution.By its water at normal temperatures and pressures
Solution forms zntio after 1 day3Precursor sol.By zntio3Precursor sol is placed under the conditions of room temperature lucifuge 1 week and is formed gel,
Gel is placed in drying baker and is dried, obtain loose brown xerogel crystal, after grinding, form brown ceramic powder.Will
zntio3Powder is placed in Muffle furnace and is made annealing treatment when 350 DEG C, is incubated 2h, obtains zntio3Powder body.
Embodiment 2
First, prepare zntio using sol-gal process3Precursor sol, by the znso of 0.45g4It is added to about 100ml no
Water-ethanol (ch3ch2Oh, in), a small amount of hydrochloric acid, regulation ph value to 5 are added；It is added dropwise over c thereto16h36o4Ti be (ti and zn's
Mol ratio is 1:1), magnetic agitation 2h obtains shallow yellow transparent solution.Form zntio after it being hydrolyzed at normal temperatures and pressures 1 day3
Precursor sol.By zntio3Precursor sol is placed under the conditions of room temperature lucifuge 1 week and is formed gel, and gel is placed in drying baker
Inside it is dried, obtains loose brown xerogel crystal, after grinding, form brown ceramic powder.By zntio3Powder is placed in Muffle furnace
In made annealing treatment when 350 DEG C, be incubated 2h, obtain zntio3Powder body.
The zntio that the present invention is obtained3Powder body, scanning electron microscopic observation test result is as shown in figure 1, can be observed prepared
Zntio3Uniformly, average diameter has reached 200nm to diameter of particle.Under daylight light irradiation, this material is through ultraviolet-visible
Spectrophotometer is tested, and reaches more than 90% to dye wastewater treatment efficiency, with traditional tio2Photocatalyst compares its light
Degradation of methylene blue performance increases, and test result is as shown in Figure 2.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (5)
1. a kind of zntio for processing waste water from dyestuff3Raw powder's production technology is it is characterised in that first by sol-gal process
Preparation zntio3Precursor sol, then passes through to dry the prepared zntio of dry gound method3Powder, finally it is carried out with the later stage moves back
Fire processes and obtains zntio3Powder body.
2. a kind of zntio for processing waste water from dyestuff as claimed in claim 13Raw powder's production technology it is characterised in that
Prepare described z ntio3The technological parameter of precursor sol is: adopts sol-gal process, under magnetic agitation, configuration zinc concentration is
0.02～0.03mol l-1Ethanol solution, add acid on a small quantity and adjust ph value to 5；It is added dropwise over thereto
c16h36o4Ti solution, the mol ratio making ti and zn is 1:1, obtains shallow yellow transparent solution after magnetic agitation for a period of time.By its
Form zntio after a period of time of hydrolysis at normal temperatures and pressures3Precursor sol.
3. a kind of zntio for processing waste water from dyestuff as claimed in claim 13Raw powder's production technology it is characterised in that
Prepare described zntio3The technological parameter of powder is: by zntio3Precursor sol is placed 1 week to be formed under the conditions of room temperature lucifuge and is coagulated
Glue, gel is placed in drying baker and is dried, and obtains loose brown xerogel crystal, forms brown ceramic powder after grinding.
4. a kind of zntio for processing waste water from dyestuff as claimed in claim 13Raw powder's production technology it is characterised in that
Preparation zntio3The technological parameter of powder body: by described zntio3Powder is placed in Muffle furnace and is made annealing treatment when 350 DEG C, protects
Warm 2h, obtains zntio3Powder body.
5. a kind of zntio for processing waste water from dyestuff as claimed in claim 23Raw powder's production technology it is characterised in that
Prepare described zntio3Precursor sol adopt for zn (ch3coo)2·2h2O or znso4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610836434.4A CN106334550A (en) | 2016-09-20 | 2016-09-20 | Method for preparing ZnTiO3 powder for treating dye wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610836434.4A CN106334550A (en) | 2016-09-20 | 2016-09-20 | Method for preparing ZnTiO3 powder for treating dye wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334550A true CN106334550A (en) | 2017-01-18 |
Family
ID=57839004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610836434.4A Pending CN106334550A (en) | 2016-09-20 | 2016-09-20 | Method for preparing ZnTiO3 powder for treating dye wastewater |
Country Status (1)
| Country | Link |
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| CN (1) | CN106334550A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337182A (en) * | 2008-08-14 | 2009-01-07 | 南京大学 | Zinc titanite photocatalyst, preparation method and use thereof |
| TWI426954B (en) * | 2011-10-31 | 2014-02-21 | Univ Nat Pingtung Sci & Tech | A photocatalyst film preventing microorganism adhesion and the use thereof |
| CN103693682A (en) * | 2014-01-07 | 2014-04-02 | 哈尔滨工业大学 | Synthesis method of ZnTiO3 porous nano material |
-
2016
- 2016-09-20 CN CN201610836434.4A patent/CN106334550A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337182A (en) * | 2008-08-14 | 2009-01-07 | 南京大学 | Zinc titanite photocatalyst, preparation method and use thereof |
| TWI426954B (en) * | 2011-10-31 | 2014-02-21 | Univ Nat Pingtung Sci & Tech | A photocatalyst film preventing microorganism adhesion and the use thereof |
| CN103693682A (en) * | 2014-01-07 | 2014-04-02 | 哈尔滨工业大学 | Synthesis method of ZnTiO3 porous nano material |
Non-Patent Citations (3)
| Title |
|---|
| MASOUD SALAVATI-NIASARI ET AL: ""Synthesis, characterization, and morphological control of ZnTiO3 nanoparticles through sol-gel processes and its photocatalyst application"", 《ADVANCED POWDER TECHNOLOGY》 * |
| 田泽等: ""太阳光活性的ZnTiO3/TiO2纳米复合催化材料的制备及其表征"", 《无机化学学报》 * |
| 苏碧桃等: ""ZnTiO3-TiO2纳米复合材料的光催化性能"", 《应用化学》 * |
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