CN107089688A - A kind of preparation method and application of mesoporous cobalt ferrite material highly sensitive to acetone gas - Google Patents
A kind of preparation method and application of mesoporous cobalt ferrite material highly sensitive to acetone gas Download PDFInfo
- Publication number
- CN107089688A CN107089688A CN201710267375.8A CN201710267375A CN107089688A CN 107089688 A CN107089688 A CN 107089688A CN 201710267375 A CN201710267375 A CN 201710267375A CN 107089688 A CN107089688 A CN 107089688A
- Authority
- CN
- China
- Prior art keywords
- cobalt ferrite
- gas
- ferrite material
- mesoporous
- mesoporous cobalt
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5036—Ferrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The present invention relates to a kind of preparation method and application of mesoporous cobalt ferrite material highly sensitive to acetone gas.Preparation method is will to contain Fe3+Salt and contain Co2+Salt be added in the ethylene glycol solution of sodium acetate, mixed solution is made；The mixed solution is placed under certain temperature again and reacts 24h, reaction product is obtained, then with deionized water and absolute ethyl alcohol washing reaction product and make to dry to constant weight.Its application is pernicious gas acetone in quick detection surrounding air.The mesoporous cobalt ferrite material air-sensitive material of the present invention has to acetone gas sensitivity height, selection excellent performance, response quickly, and the characteristics of low concentration acetone sensitivity is good.
Description
Technical field
The invention belongs to gas sensitive field, and in particular to a kind of mesoporous cobalt ferrite material highly sensitive to acetone gas
Synthesis and air-sensitive performance study.
Background technology
With the development of society, being on the rise of problem of environmental pollution.Prepare high sensitivity, good, the response quickly of selectivity
Gas sensitive receive and widely pay close attention to.Acetone common are machine reagent and chemical intermediate as one kind in chemical field,
It is widely used in the fields such as plastics, rubber, paint, dyestuff and lubricant.But acetone has certain toxicity to human body,
Nose, larynx can be stimulated between 500~1000ppm, dizzy appearance of having a headache and have can be caused during 1000ppm.When the acetone concentration in environment
When reaching 2000-10000ppm, headache, bronchitis may be caused, even the symptom such as stupor.Therefore, in order to prevent acetone
Concentration over-standard, early warning ahead of time, preparing can be quick, delicately detects the gas sensitive of acetone concentration in environment to ensure us
The safety of working environment and the health of human body become extremely urgent.
The content of the invention
For deficiencies of the prior art, the present invention relates to a kind of to acetone gas response quickly, high sensitivity
With the preparation method and application of the mesoporous cobalt ferrite material highly sensitive to acetone gas with excellent selectivity.
The technical solution adopted by the present invention is as follows：
A kind of preparation method to acetone gas with highly sensitive mesoporous cobalt ferrite material.Specifically include following steps：
1）By in sodium acetate solid dissolving ethylene glycol, stir, form the ethylene glycol mixed solution of sodium acetate.
2）Added to the ethylene glycol mixed solution of sodium acetate and contain Fe3+Salt and contain Co2+Salt, obtain mixed solution；
Wherein Fe3+, Co2+Mol ratio with sodium acetate is 2：1：15.
3）Mixed solution is placed in reactor and reacts 24h at 180 DEG C, the reaction product of solid-state is obtained.
4）After cleaning reaction product several times with ethanol, then cleaned several times with deionized water, then dried to constant weight, i.e.,
Obtain mesoporous cobalt ferrite material.
In order to obtain high sensitivity, response quickly, the good cobalt ferrite gas sensitive of selectivity, the present invention uses hydro-thermal method,
The mesoporous cobalt ferrite material excellent to acetone air-sensitive performance is successfully prepared.Compared with existing gas sensitive, with super
High gas sensitization degree, quickly many advantages, such as response and good selectivity.Meso-hole structure reason, which why can be produced, is：
Due in the high temperature and high pressure environment of reactor, there is gas molecules to produce bubble in the generating process of product, so as to result in
Product possesses meso-hole structure.
Application of the mesoporous cobalt ferrite material in the detection of gas sensitization degree, is the air-sensitive that mesoporous cobalt ferrite is covered using surface
Element carries out gas sensitization degree detection for acetone in air content, described mesoporous cobalt ferrite layer by above-mentioned preparation mesoporous iron
Sour cobalt material is constituted.
The gas sensor that mesoporous cobalt ferrite is covered on surface is made of following methods：
（1）Mesoporous cobalt ferrite material is mixed with terpinol, sticky slurries are obtained.
（2）Slurries are uniformly applied on alumina ceramic tube, then the alumina ceramic tube is placed under 60 DEG C of environment
Dry, to remove terpinol, obtain to surface and cover the gas sensor of mesoporous cobalt ferrite.
（3）The alumina ceramic tube that mesoporous cobalt ferrite is covered on surface is placed in atmospheric environment and is heated to 200 DEG C and aging
24h, to improve the stability of gas sensor.
Wherein：Step（2）Described alumina ceramic tube is provided at both ends with becket, and its length is 4mm, a diameter of
1mm。
The principle of air-sensitive detection（Schematic diagram is as shown in Figure 1）：At a certain temperature, the oxygen on cobalt ferrite gas sensitive surface
Qi leel will obtain the electronics of cobalt ferrite gas sensitive conduction band layer, form adsorptivity oxygen（O2 -,O-,O2-）.Cobalt ferrite gas sensitive
Due to losing electronics so that resistance changes.After object gas is added, the adsorptivity oxygen reaction high with reactivity, and
Discharge the electronics previously obtained to return in cobalt ferrite gas sensitive so that resistance returns to initial level, gas sensitization
Degree is to add before and after object gas, the ratio of the resistance value of cobalt ferrite gas sensitive.
Compared with prior art, the present invention has the advantages that：
1st, mesoporous cobalt ferrite material prepared by the present invention has especially excellent susceptibility for acetone gas（Relatively low
Under 260 DEG C of temperature, 100ppm acetone concentration, gas sensitization degree is up to 226.9, under being the same terms, 8.3 times of body material）.
2nd, quickly response（Response time is about 15 seconds）.
3rd, mesoporous cobalt ferrite gas sensor prepared by the present invention is relative to other gases（Such as ammoniacal liquor, methanol）, for third
Ketone gas has extra high selectivity.
4th, the present invention prepares mesoporous cobalt ferrite material, environmental protection small using equipment using hydro-thermal method, it is easy to accomplish, just
In popularization.
Brief description of the drawings
Fig. 1 is the operation principle schematic diagram of air-sensitive detection；
Fig. 2 covers the gas sensor pictorial diagram of mesoporous cobalt ferrite layer for the surface of the present invention；
Fig. 3 is temperature curve of the mesoporous cobalt ferrite material of the invention prepared to the susceptibility of acetone；
Fig. 4 is concentration curve of the mesoporous cobalt ferrite material of the invention prepared to the susceptibility of acetone；
Fig. 5 is sensitivity curve of the mesoporous cobalt ferrite material of the invention prepared to acetone concentration 10-80ppm；
Fig. 6 is susceptibility comparison diagram of the mesoporous cobalt ferrite material of the invention prepared to gas with various.
In accompanying drawing：Bulk represents the cobalt ferrite body material of the preparation of embodiment two.
Embodiment
The present invention is described in further detail with reference to specific embodiment.
Embodiment one
Mesoporous cobalt ferrite material is prepared using following methods：
1）By 15mmol sodium acetates solid dissolving in 25mL ethylene glycol, stir, form mixed solution A；
2）The cobalt chloride of 2mmol iron chloride and 1mmol is added in mixed solution A, after being well mixed, mixed solution B is formed；
3）Mixed solution B is fitted into ptfe autoclave, reacted 24 hours at 180 DEG C；
4）Final product is washed with ethanol and deionized water respectively again, is placed into 60 DEG C of drying boxes and is dried to constant weight.
Prepare gas sensor：
1）Mesoporous cobalt ferrite material is mixed with terpinol, sticky slurries are obtained.
2）Slurries are uniformly applied to aluminium oxide ceramics pipe surface, then the earthenware is placed in drying under 60 DEG C of environment,
To remove terpinol, obtain to surface and cover the gas sensor of mesoporous cobalt ferrite layer.
3）The gas sensor that mesoporous cobalt ferrite layer is covered on surface is placed in atmospheric environment and is heated to 200 DEG C and aging 24h,
To improve the stability of gas sensor.
Embodiment two
Cobalt ferrite body material is prepared using following methods：
1）The cobalt chloride of 2mmol iron chloride and 1mmol is added in 25mL ethylene glycol, mixed solution C is formed；
2）Mixed solution C is aged, then dries roasting and has just obtained cobalt ferrite body material.
Prepare gas sensor：
1）Cobalt ferrite body material is mixed with terpinol, sticky slurries are obtained.
2）Slurries are uniformly applied on aluminium oxide ceramics element, then the earthenware is placed in drying under 60 DEG C of environment,
To remove terpinol, obtain to surface and cover the gas sensor of cobalt ferrite body material.
3）The gas sensor that cobalt ferrite body material is covered on surface is placed in atmospheric environment and is heated to 200 DEG C and aging 24h,
To improve the stability of gas sensor.
Embodiment three
The temperature range of gas sensitization degree test is 200 ~ 340 DEG C；The concentration range of gas sensitization degree test is 10 ~ 500ppm.
Cover the gas sensor of mesoporous cobalt ferrite and the gas of cobalt ferrite body material is covered on surface in the surface for point being carried out the preparation of example one, two
Quick element enters detection.
The gas containing acetone is passed through, and is gradually heated up, the gas sensor of mesoporous cobalt ferrite is covered not to investigate surface
The synthermal lower susceptibility to acetone, its susceptibility change curve is as shown in Figure 3.It the experiment proved that, at 260 DEG C, to acetone
Gas sensitization degree highest.Operating temperature is maintained at 260 DEG C, the acetone gas of various concentrations is passed through, to investigate different acetone
Influence of the concentration to gas sensor susceptibility.Its curve is as shown in figure 4, wherein 10-80ppm susceptibility change curve is shown in Fig. 5.
The gas containing ammoniacal liquor, benzene, acetone, toluene, methanol, formaldehyde and ethanol is each led into again, to contrast mesoporous cobalt ferrite and body material
Expect the susceptibility under gas with various atmosphere, the block diagram of its susceptibility is as shown in Figure 6.
Above-mentioned air-sensitive test result indicates that the present invention mesoporous cobalt ferrite material have good vapor sensitivity to acetone, be
A kind of excellent gas sensitive.
The Testing index of mesoporous cobalt ferrite prepared by embodiment one is listed in table 1.
The Testing index of the mesoporous cobalt ferrite of table 1
The above embodiment of the present invention is only example to illustrate the invention, and is not to embodiments of the present invention
Restriction.For those of ordinary skill in the field, other not similar shapes can also be made on the basis of the above description
The change and variation of formula.Here all embodiments can not be exhaustive.Every technical scheme that belongs to is drawn
Row of the obvious changes or variations that Shen goes out still in protection scope of the present invention.
Claims (9)
1. a kind of preparation method of mesoporous cobalt ferrite material highly sensitive to acetone gas, it is characterised in that Fe will be contained3+'s
Salt and contain Co2+Salt be added in the ethylene glycol solution for being mixed with sodium acetate, using hydro-thermal method synthesize it is highly sensitive to acetone gas
Cobalt ferrite material is spent, step is as follows：
1）By in sodium acetate solid dissolving ethylene glycol, stir, form the ethylene glycol mixed solution of sodium acetate；
2）Added to the ethylene glycol mixed solution of sodium acetate and contain Fe3+Salt and contain Co2+Salt, obtain mixed solution；Wherein
Fe3+, Co2+Mol ratio with sodium acetate is 2：1：15；
3）Mixed solution is placed in reactor and reacts 24h at 180 DEG C, the reaction product of solid-state is obtained；
4）After cleaning reaction product several times with ethanol, then cleaned several times with deionized water, then dry to constant weight, that is, obtain
Mesoporous cobalt ferrite material.
2. the preparation method of mesoporous cobalt ferrite material highly sensitive to acetone gas according to claim 1, its feature
It is, the concentration of the ethylene glycol solution of sodium acetate is 0.6 × 10-6mol/L。
3. the preparation method of mesoporous cobalt ferrite material highly sensitive to acetone gas according to claim 1, its feature
It is step 3）In, the temperature of reaction is 180 DEG C, and the reaction time is 24h.
4. the preparation method of mesoporous cobalt ferrite material highly sensitive to acetone gas according to claim 1, its feature
It is, contains Fe3+Salt be iron chloride, contain Co2+Salt be cobalt chloride, mol ratio is 2:1.
5. application of the mesoporous cobalt ferrite material in the detection of gas sensitization degree, it is characterised in that cover mesoporous ferrous acid using surface
The gas sensor of cobalt carries out gas sensitization degree detection for acetone in air content, and described mesoporous cobalt ferrite layer is by claim
The 1 mesoporous cobalt ferrite material prepared is constituted.
6. application of the mesoporous cobalt ferrite material according to claim 5 in the detection of gas sensitization degree, it is characterised in that institute
State surface and cover the gas sensor of mesoporous cobalt ferrite and be made of following methods：
（1）Mesoporous cobalt ferrite material is mixed with terpinol, sticky slurries are obtained；
（2）Slurries are equably applied to aluminium oxide ceramics pipe surface, then the alumina ceramic tube is placed under 60 DEG C of environment done
It is dry, to remove terpinol, obtain to surface and cover the gas sensor of mesoporous cobalt ferrite；
（3）The gas sensor that mesoporous cobalt ferrite is covered on surface is placed in atmospheric environment and is heated to 200 DEG C and aging 24h, with this
Improve the stability of gas sensor.
7. application of the mesoporous cobalt ferrite material according to claim 6 in the detection of gas sensitization degree, it is characterised in that step
Suddenly（2）Described alumina ceramic tube is provided at both ends with becket, and its length is 4mm, a diameter of 1mm.
8. application of the mesoporous cobalt ferrite material according to claim 5 in the detection of gas sensitization degree, it is characterised in that gas
260 DEG C of the optimum working temperature of body susceptibility detection.
9. application of the mesoporous cobalt ferrite material according to claim 5 in the detection of gas sensitization degree, it is characterised in that gas
The concentration range of body susceptibility detection is 10 ~ 500 ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267375.8A CN107089688A (en) | 2017-04-21 | 2017-04-21 | A kind of preparation method and application of mesoporous cobalt ferrite material highly sensitive to acetone gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710267375.8A CN107089688A (en) | 2017-04-21 | 2017-04-21 | A kind of preparation method and application of mesoporous cobalt ferrite material highly sensitive to acetone gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107089688A true CN107089688A (en) | 2017-08-25 |
Family
ID=59636973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710267375.8A Pending CN107089688A (en) | 2017-04-21 | 2017-04-21 | A kind of preparation method and application of mesoporous cobalt ferrite material highly sensitive to acetone gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107089688A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190483A (en) * | 2010-03-01 | 2011-09-21 | 中国科学院生态环境研究中心 | Three-dimensional micro-nano material composed of nano CoFe2O4 and preparation method thereof |
| CN104150544A (en) * | 2014-08-06 | 2014-11-19 | 厦门理工学院 | Method for acetate-assisted synthesis of monodisperse ferric acid cobalt nano powder material |
| CN106198630A (en) * | 2016-06-28 | 2016-12-07 | 吉林大学 | A kind of based on mesoporous ZnFe2o4acetone gas sensor of sensitive material and preparation method thereof |
| CN106268706A (en) * | 2016-08-10 | 2017-01-04 | 南开大学 | A kind of preparation method and applications of magnetic Nano inorganic arsenic adsorbent |
-
2017
- 2017-04-21 CN CN201710267375.8A patent/CN107089688A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190483A (en) * | 2010-03-01 | 2011-09-21 | 中国科学院生态环境研究中心 | Three-dimensional micro-nano material composed of nano CoFe2O4 and preparation method thereof |
| CN104150544A (en) * | 2014-08-06 | 2014-11-19 | 厦门理工学院 | Method for acetate-assisted synthesis of monodisperse ferric acid cobalt nano powder material |
| CN106198630A (en) * | 2016-06-28 | 2016-12-07 | 吉林大学 | A kind of based on mesoporous ZnFe2o4acetone gas sensor of sensitive material and preparation method thereof |
| CN106268706A (en) * | 2016-08-10 | 2017-01-04 | 南开大学 | A kind of preparation method and applications of magnetic Nano inorganic arsenic adsorbent |
Non-Patent Citations (9)
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105214512B (en) | A kind of preparation method and applications of carrier surface graphene oxide membrane | |
| CN106596656B (en) | A kind of gas sensor of the titanium dichloride load di-iron trioxide nano-heterogeneous structure based on MOF Template synthesis | |
| CN107764788B (en) | Synthesis method of carbon quantum dots, carbon quantum dots and Fe detection3+Method (2) | |
| Zhao et al. | Preconcentration procedures for the determination of chromium using atomic spectrometric techniques: A review | |
| CN105136977B (en) | Production method of gas sensor constructed by molybdenum disulfide-based bimetallic nanocomposite material | |
| CN110396006A (en) | A kind of ZIF-8 film cladding SnO2Composite air-sensitive material and its preparation method and application | |
| CN106188110A (en) | A kind of metallic organic framework functional fluorescence material and preparation method and applications | |
| CN108570062B (en) | Porous metal organic complex, preparation method thereof and application thereof in detection of ammonia gas and ammonia water | |
| CN104610483A (en) | Preparation method of chelating functional resin with selective adsorption to Hg(II) | |
| CN105524083B (en) | A kind of preparation of metal-organic framework material for purified natural gas | |
| CN105158412A (en) | Preparation method of aromatic hydrocarbon gas sensor constructed based on molybdenum disulfide loaded double-metal alloy nanometer composite material | |
| CN102861559B (en) | Production method of polyacrylonitrile chelating resin metal adsorbent | |
| CN110483746B (en) | Synthesis of novel covalent organic framework material and application of novel covalent organic framework material in metal ion recognition and dye adsorption | |
| CN109239041A (en) | A kind of carbon dots for detecting tyrasamine-molecularly imprinted polymer test strips and its preparation method and application | |
| CN105158306B (en) | A kind of preparation method of the gas sensor for volatile organic matter detection | |
| CN105236397B (en) | Preparation method of carbon quantum dot-graphene nanosheet complex | |
| CN107089688A (en) | A kind of preparation method and application of mesoporous cobalt ferrite material highly sensitive to acetone gas | |
| CN113667470A (en) | Based on MIL-53-NH2(Al) fluorescent sensing film and preparation method and application thereof | |
| CN105004626B (en) | A kind of high sensitivity Ammonia gas sensor and preparation method thereof | |
| CN110499152B (en) | Colorimetric and fluorescent double-response fluorescent detection probe and sensor | |
| CN104628906A (en) | Preparation method of chelate resin capable of selectively adsorbing Hg (II) | |
| CN108794666A (en) | The method and polyethylene of vinyl polymerization | |
| CN109467568B (en) | Porphyrin naphthalocyanine three-layer metal complex and preparation method and application thereof | |
| CN103819632B (en) | A kind of sibutramine magnetic molecularly imprinted polymer and preparation method thereof | |
| Xie et al. | Shape memory luminescent cellulose/chitosan hydrogel for high sensitive detection of formaldehyde |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170825 |
|
| RJ01 | Rejection of invention patent application after publication |