CN107298435B - The scale inhibition of carbon quantum dot is applied and antisludging agent - Google Patents
The scale inhibition of carbon quantum dot is applied and antisludging agent Download PDFInfo
- Publication number
- CN107298435B CN107298435B CN201710571273.5A CN201710571273A CN107298435B CN 107298435 B CN107298435 B CN 107298435B CN 201710571273 A CN201710571273 A CN 201710571273A CN 107298435 B CN107298435 B CN 107298435B
- Authority
- CN
- China
- Prior art keywords
- scale inhibition
- quantum dot
- carbon quantum
- citric acid
- antisludging agent
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/168—Use of other chemical agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention relates to the application of the scale inhibition of carbon quantum dot and antisludging agents, the carbon quantum dot can prevent underwater gold category ion from forming precipitating, to apply in water process, equipment scale inhibition, oil recovery scale inhibition and desalination scale inhibition field, such as: sea water desalination, film, heat exchanger, recirculated cooling water, pipeline, boiler, oil recovery, flue gas desulfurization, desalination, urban water etc..Experiments show that the carbon quantum dot of the invention synthesized by monomer citric acid and sodium hydroxide high temperature pyrolysis, scale inhibition function is powerful, is much better than the citric acid of comparable sodium.
Description
Technical field
The invention belongs to water treatment fields, in particular to the scale inhibition application of carbon quantum dot and antisludging agent.
Background technique
Dirt is often generated in industrial circulating cooling water processing, seriously affects the operation of instrument and equipment, even meeting when serious
It explodes, causes huge economic loss.
Antisludging agent is added inside often to prevent the generation of dirt in dirty generation in order to prevent.Antisludging agent is substantially at present
Sulphonic acids antisludging agent can be divided into, containing Phosphorus antisludging agent, environmental type antisludging agent and four kinds of carboxyl acids antisludging agent, sulphonic acids scale inhibition
Agent since its degradability difference is just gradually being abandoned by people, although and containing Phosphorus antisludging agent have excellent scale-inhibiting properties, with
The pay attention to day by day of Environmental protection, using receiving stringent limitation, although environmental type antisludging agent meets works as
The requirement in modern epoch, but it is expensive therefore application range is narrow, and in conjunction with situation described above, carboxyl acids antisludging agent is low due to its
The characteristic of cost, high-performance and high-environmental, by the concern of people.In addition, with the development of society, quantum dot due to
Its special feature performance benefit has gradually obtained huge development in fields such as medicine, battery, sensings, but never someone is applied
In terms of scale inhibition.
Therefore, the technology in two above field is combined to realize more preferably technical effect, such research is current still
Belong to blank.
Summary of the invention
The purpose of the present invention is in order to solve the above problem, the present invention provides scale inhibition application and the antisludging agent of carbon quantum dot.This
The technical solution of invention is achieved by the following way.
Carbon quantum dot is provided according to the first aspect of the invention in the application in scale inhibition field.
Wherein, scale inhibition field specifically includes water process, equipment scale inhibition, oil recovery scale inhibition and desalination scale inhibition multiple fields.
Wherein, the carbon quantum dot using citric acid and sodium hydroxide by high temperature pyrolytic cracking (HTP) by being prepared.
Wherein, the partial size of the carbon quantum dot is between 2~50nm.
Wherein, high temperature pyrolytic cracking (HTP) specifically includes the following steps:
(1) by monomer citric acid high-temperature process, viscous liquid is obtained；
(2) viscous liquid is cooled to room temperature, deionized water is added, form solid-liquid mixing system；
(3) sodium hydroxide solution is added into solid-liquid mixing system, until solid dissolve, is formed pH value for 6.2~8.1 it is molten
Liquid；
(4) solution is freeze-dried, forms carbon quantum dot.
Wherein, it is oil bath that step (1), which includes: high-temperature process mode, and the heating temperature of oil bath is 150~200 DEG C, when heating
Between be 20~50h.
Step (2) includes: the deionized water of addition and the mass ratio of monomer citric acid is 45~65:55~35.
Step (3) includes: that sodium hydroxide solution is added several times to neutralize, and the concentration of the sodium hydroxide solution of addition is
5mol/L。
Wherein, step (1) include: heating time be 36~45h.
A kind of antisludging agent is provided according to the second aspect of the invention, includes the carbon quantum dot.
The antisludging agent is provided according to the third aspect of the invention we in water process, equipment scale inhibition, oil recovery scale inhibition and desalination scale inhibition
The application in field.
Wherein, which is one of pipeline, heat exchanger, reverse osmosis membrane, microfiltration membranes, nanofiltration membrane, ultrafiltration membrane.
Carbon quantum dot is the nanoparticle that carbon nano-particles surface covers a kind of special polymer, be can be used " from upper
Under " and the synthesis of " from bottom to top " two methods, it, can since a large amount of carboxylic acid groups and hydroxyl group are contained in the surface of carbon quantum dot
With complexing of metal ion, the complex compound for being highly soluble in water is generated, therefore the formation of scale can be prevented.Using " from bottom to top "
When lemon acid monomers synthesize carbon quantum dot with the high temperature pyrolytic cracking (HTP) of sodium hydroxide, high temperature can be such that the key in citric acid molecule disconnects
Then it polymerize again with the citric acid molecule of other scission of links, forms the carbon packet skeleton of specific length, the carbon packet skeleton is to a certain degree
On be capable of the performance of carboxylic acid group and hydroxyl group clear, aggravate its complexing with metal ion.Our experiments show that with this side
Method is synthesized carbon quantum dot, and scale prevention ability will much be better than its raw material (citric acid) of same concentrations.
The invention has the following advantages:
1. technology of quantum dots is applied to scale inhibition field in a creative way by the present invention, it is used as scale inhibition composition, there is synthesis work
The features such as skill is simple, and reaction condition is mild, green non-poisonous degradable meets the overall trend requirement of environmental protection.
3. the present invention is experimentally confirmed, the carbon quantum that monomer citric acid and sodium hydroxide are synthesized by high temperature pyrolytic cracking (HTP)
Point, scale inhibition function is powerful, far more than the citric acid of same concentration.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the structure of the scale inhibition application of embodiment carbon quantum dot according to the present invention and the carbon quantum dot of antisludging agent
Figure；
Fig. 2 shows the application of the scale inhibition of the carbon quantum dot of embodiment according to the present invention and the carbon quantum dots and lemon of antisludging agent
The infrared spectrum comparison diagram of lemon acid；
Fig. 3 shows the scale inhibition application and the carbon quantum dot and lemon of antisludging agent of the carbon quantum dot of embodiment according to the present invention
Scale inhibition efficiency comparative's schematic diagram of lemon acid.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
To further illustrate technical solution of the present invention, the present invention will be done below into one by way of specific embodiment
The explanation of step.
The carbon quantum dot X1 of 1 high temperature pyrolytic cracking (HTP) of embodiment synthesis
Monomer citric acid is added in three-necked flask, flask is put into the oil bath pan high temperature that oil bath temperature is 200 DEG C
20h is handled, after flask is cooled to room temperature, the deionized water for being 45:55 with the mass ratio of monomer citric acid is added, three mouthfuls are burnt
Bottle, which is placed on magnetic stirring apparatus, to be stirred, and the sodium hydroxide solution that concentration is 5mol/L is gradually added in three times, until solid is complete
The pH of portion's dissolution and solution is 6.2, this is put into freeze-dryer freeze-drying close to neutral solution, finally obtains carbon quantum
Point X1.
Testing result:
1. after measured, carbon quantum dot X1 is Tan solid form, specific structure is as shown in Figure 1.
2. detection is compared to carbon quantum dot X1 and citric acid using infrared spectrometer, as shown in the infared spectrum of Fig. 2,
In the infrared spectrum of carbon quantum dot X1, in 1568cm-1And 1398cm-1There are two apparent peaks at place, is respectively C=O and C-H
Stretching vibration peak, hence it is demonstrated that carbon quantum dot X1 contains carboxylic acid group and hydroxy groups, the absorption of other two stretching vibration peak
Degree is respectively less than the vibration peak of citric acid, hence it is demonstrated that the carbon packet skeleton containing specific length in carbon quantum dot X1.
3. carrying out scale inhibition Efficiency testing according to national standard GB/T16632-2008, when test temperature is 80 DEG C, carbon amounts is added
When the concentration of sub- point X1 is 350ppm, 94% can reach to the scale inhibition efficiency of calcium sulfate；When test temperature is 60 DEG C, it is added
When the concentration of carbon quantum dot X1 is 100ppm, 96% can reach to the scale inhibition efficiency of calcium sulfate.
The carbon quantum dot X2 of 2 high temperature pyrolytic cracking (HTP) of embodiment synthesis
Monomer citric acid is added in three-necked flask, flask is put into the oil bath pan high temperature that oil bath temperature is 180 DEG C
50h is handled, after flask is cooled to room temperature, the deionized water for being 65:35 with the mass ratio of monomer citric acid is added, three mouthfuls are burnt
Bottle, which is placed on magnetic stirring apparatus, to be stirred, and the sodium hydroxide solution that concentration is 5mol/L is gradually added in four times, until solid is complete
The pH of portion's dissolution and solution is 6.8, this is put into freeze-dryer freeze-drying close to neutral solution, finally obtains carbon quantum
Point X2.
Testing result:
Scale inhibition Efficiency testing is carried out according to national standard GB/T16632-2008, when test temperature is 80 DEG C, carbon quantum is added
When the concentration of point X2 is 300ppm, 92% can reach to the scale inhibition efficiency of calcium sulfate；When test temperature is 60 DEG C, carbon is added
When the concentration of quantum dot X2 is 100ppm, 95% can reach to the scale inhibition efficiency of calcium sulfate.
The carbon quantum dot X3 of 3 high temperature pyrolytic cracking (HTP) of embodiment synthesis
Monomer citric acid is added in three-necked flask, flask is put into the oil bath pan high temperature that oil bath temperature is 190 DEG C
40h is handled, after flask is cooled to room temperature, the deionized water for being 50:45 with the mass ratio of monomer citric acid is added, three mouthfuls are burnt
Bottle, which is placed on magnetic stirring apparatus, to be stirred, and the sodium hydroxide solution that concentration is 5mol/L is gradually added in two times, until solid is complete
The pH of portion's dissolution and solution is 7, and the solution of the neutrality is put into freeze-dryer freeze-drying, finally obtains carbon quantum dot X3.
Testing result:
Scale inhibition Efficiency testing is carried out according to national standard GB/T16632-2008, when test temperature is 80 DEG C, carbon quantum is added
When the concentration of point X3 is 250ppm, 92% can reach to the scale inhibition efficiency of calcium sulfate；When test temperature is 60 DEG C, carbon is added
When the concentration of quantum dot X3 is 100ppm, 100% can reach to the scale inhibition efficiency of calcium sulfate.
The carbon quantum dot X4 of 4 high temperature pyrolytic cracking (HTP) of embodiment synthesis
Monomer citric acid is added in three-necked flask, flask is put into the oil bath pan high temperature that oil bath temperature is 150 DEG C
36h is handled, after flask is cooled to room temperature, the deionized water for being 60:40 with the mass ratio of monomer citric acid is added, three mouthfuls are burnt
Bottle, which is placed on magnetic stirring apparatus, to be stirred, and the sodium hydroxide solution that concentration is 5mol/L is gradually added in four times, until solid is complete
The pH of portion's dissolution and solution is 7.5, and the solution of the neutrality is put into freeze-dryer freeze-drying, finally obtains carbon quantum dot
X4。
Testing result:
Scale inhibition Efficiency testing is carried out according to national standard GB/T16632-2008, when test temperature is 80 DEG C, carbon quantum is added
When the concentration of point X4 is 250ppm, 92% can reach to the scale inhibition efficiency of calcium sulfate；When test temperature is 60 DEG C, carbon is added
When the concentration of quantum dot X4 is 100ppm, 98% can reach to the scale inhibition efficiency of calcium sulfate.
5 laser of embodiment corrodes the carbon quantum dot X5 of method synthesis
Carbon target is made in carbon dust and binder, using argon gas as carrier gas, in high temperature (900 DEG C) water vapor atmosphere, by swashing
Light corrodes carbon target and obtains carbon matrix precursor, then places it in aqueous solution of nitric acid and is heated to reflux, then with polyethylene glycol 1500 n into
Row surface modification, to obtain carbon quantum dot X5.
Testing result:
Scale inhibition Efficiency testing is carried out according to national standard GB/T16632-2008, when test temperature is 80 DEG C, carbon quantum is added
When the concentration of point X5 is 250ppm, 27% can reach to the scale inhibition efficiency of calcium sulfate；When test temperature is 60 DEG C, carbon is added
When the concentration of quantum dot X5 is 100ppm, 32% can reach to the scale inhibition efficiency of calcium sulfate.
1 scale prevention ability of experimental example compares
Using carbon quantum dot X1~X5 as test object, its scale prevention ability is tested, and carry out with the citric acid of same concentrations
Comparison.It is as shown in Figure 3 with the comparing result of the citric acid of same concentration by taking carbon quantum dot X1 as an example.
From the figure 3, it may be seen that the carbon quantum dot X1 using citric acid as Material synthesis, scale inhibition efficiency will be apparently higher than identical dense
The citric acid of degree, and when citric acid is as antisludging agent, with increasing for amount, scale inhibition efficiency maintain 20% or so it is constant not
Become, and when carbon quantum dot X1 is as antisludging agent, with increasing for amount, reach 99% in 400ppm.
The measurement of 2 scale inhibition influence factor of experimental example
Equally using carbon quantum dot X1 as test object, the factor of its scale inhibition efficiency of determination influences, to it in 60 DEG C and 80 DEG C
Environment various concentration under scale inhibition efficiency evaluated, shown in the following Tables 1 and 2 of specific experiment result.
The scale inhibition efficiency of carbon quantum dot at 1. 80 DEG C of table
The scale inhibition efficiency of carbon quantum dot at 2. 60 DEG C of table
By that can deduce Tables 1 and 2 comparison, temperature and concentration are to influence two factors of carbon quantum dot scale inhibition efficiency,
Under the conditions of identical temperature, the scale inhibition efficiency of carbon quantum dot is increased with the increase of concentration, under the conditions of same concentrations, carbon quantum dot
In the case where the scale inhibition efficiency under 60 DEG C of environment will be much higher than 80 DEG C of environment.
To sum up, the present invention provides the completely new ideas applied the carbon quantum dot in scale inhibition field, with existing scale inhibition
Technology is compared, and carbon quantum dot is simple with synthesis technology, reaction condition is mild, raw material is easy to get, the green non-poisonous easy drop of synthetic product
The features such as solution and low raw-material cost.In addition, the carbon quantum dot that monomer citric acid and sodium hydroxide are synthesized by high temperature pyrolytic cracking (HTP),
Its scale inhibition assessment outcomes can achieve 95% or more, and at temperature appropriate and concentration, scale inhibition efficiency can even reach
To absolutely.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (6)
1. carbon quantum dot is in the application in scale inhibition field；The carbon quantum dot passes through high temperature pyrolytic cracking (HTP) using citric acid and sodium hydroxide
Preparation, specifically includes:
(1) by monomer citric acid high-temperature process, viscous liquid is obtained；
(2) viscous liquid is cooled to room temperature, deionized water is added, form solid-liquid mixing system；
(3) sodium hydroxide solution is added into solid-liquid mixing system, until solid dissolves, forms the solution that pH value is 6.2~8.1；
(4) solution is freeze-dried, forms carbon quantum dot；
The step (1) includes: that high-temperature process mode is oil bath, and the heating temperature of oil bath is 150~200 DEG C, and heating time is
20~50h；
The step (2) includes: that the mass ratio of deionized water and monomer citric acid is 45~65:55~35；
The partial size of the carbon quantum dot is between 2~50nm.
2. carbon quantum dot as described in claim 1 is in the application in scale inhibition field, which is characterized in that
The scale inhibition field includes water process, equipment scale inhibition, oil recovery scale inhibition and desalination scale inhibition.
3. carbon quantum dot as described in claim 1 is in the application in scale inhibition field, which is characterized in that
The step (1) include: heating time be 36~45h.
4. a kind of antisludging agent, which is characterized in that include carbon quantum dot according to any one of claims 1 to 3.
5. antisludging agent as claimed in claim 4 is in water process, the application of equipment scale inhibition, oil recovery scale inhibition and desalination scale inhibition field.
6. antisludging agent as claimed in claim 5 is in water process, the application of equipment scale inhibition, oil recovery scale inhibition and desalination scale inhibition field,
It is characterized in that,
The equipment is one of pipeline, heat exchanger, reverse osmosis membrane, microfiltration membranes, nanofiltration membrane, ultrafiltration membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710571273.5A CN107298435B (en) | 2017-07-13 | 2017-07-13 | The scale inhibition of carbon quantum dot is applied and antisludging agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710571273.5A CN107298435B (en) | 2017-07-13 | 2017-07-13 | The scale inhibition of carbon quantum dot is applied and antisludging agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107298435A CN107298435A (en) | 2017-10-27 |
| CN107298435B true CN107298435B (en) | 2019-09-27 |
Family
ID=60133891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710571273.5A Active CN107298435B (en) | 2017-07-13 | 2017-07-13 | The scale inhibition of carbon quantum dot is applied and antisludging agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107298435B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435002B (en) * | 2018-03-27 | 2021-03-19 | 东华大学 | Preparation method of functionalized carbon quantum dot modified composite nanofiltration membrane |
| CN111234818B (en) * | 2020-03-04 | 2022-03-18 | 西南石油大学 | Method for synthesizing surface functional group modified carbon quantum dots and application of carbon quantum dots in nano oil displacement |
| CN111591976A (en) * | 2020-06-04 | 2020-08-28 | 山东丰益泰和科技有限公司 | Fluorescent carbon quantum dot with scale inhibition performance and preparation method and application thereof |
| CN115011314A (en) * | 2022-07-22 | 2022-09-06 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Preparation and application of fluorescent carbon quantum dots for scale inhibition of geothermal fluid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000460A (en) * | 2016-06-28 | 2016-10-12 | 福州大学 | TiO2 photocatalyst modified by carbon quantum dot sensitization dendritic polyethyleneimine |
| CN106552595A (en) * | 2016-12-07 | 2017-04-05 | 天津市金鳞水处理科技有限公司 | Heavy metal ion adsorption and detection type composite hydrogel fiber and preparation method thereof |
-
2017
- 2017-07-13 CN CN201710571273.5A patent/CN107298435B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000460A (en) * | 2016-06-28 | 2016-10-12 | 福州大学 | TiO2 photocatalyst modified by carbon quantum dot sensitization dendritic polyethyleneimine |
| CN106552595A (en) * | 2016-12-07 | 2017-04-05 | 天津市金鳞水处理科技有限公司 | Heavy metal ion adsorption and detection type composite hydrogel fiber and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107298435A (en) | 2017-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107298435B (en) | The scale inhibition of carbon quantum dot is applied and antisludging agent | |
| US8944257B2 (en) | Polysulfone polymers and membranes for reverse osmosis, nanofiltration and ultrafiltration | |
| Khorshidi et al. | Thermally resistant and electrically conductive PES/ITO nanocomposite membrane | |
| Nguyen et al. | The impact of graphene oxide particles on viscosity stabilization for diluted polymer solutions using in enhanced oil recovery at HTHP offshore reservoirs | |
| Xu et al. | Hybrids of magnetic nanoparticles with double‐hydrophilic core/shell cylindrical polymer brushes and their alignment in a magnetic field | |
| Carneiro et al. | Chitosan as a smart coating for controlled release of corrosion inhibitor 2-mercaptobenzothiazole | |
| Dippong et al. | A possible formation mechanism and photocatalytic properties of CoFe2O4/PVA-SiO2 nanocomposites | |
| CN103041719B (en) | Preparation method of chloroacetyl chloride-diethylenetriamine/polyether sulfone anion-exchange membrane | |
| Long et al. | Novel carboxyethyl amine sodium salts as draw solutes with superior forward osmosis performance | |
| CN103861480A (en) | Preparation method of hydrophilic polyvinylidene fluoride flat sheet membrane and hollow fiber membrane | |
| Wang et al. | Preparation and coagulation performance of hybrid coagulant polyacrylamide–polymeric aluminum ferric chloride | |
| Su et al. | Formation and photoresponsive properties of giant microvesicles assembled from azobenzene‐containing amphiphilic diblock copolymers | |
| Feng et al. | A facile hydrothermal method for preparation of fluorescent carbon dots on application of Fe3+ and fingerprint detection | |
| CN1049160C (en) | Preparation method for transition metal oxide nuclear shell type nano meter particle | |
| Chaudhari et al. | Preparation, characterization, and performance of sulfated chitosan/polyacrylonitrile composite nanofiltration membranes | |
| Lin et al. | Exfoliation of montmorillonite by the insertion of disklike micelles via the soap‐free emulsion polymerization of methyl methacrylate | |
| CN1239237C (en) | Preparing method for nanometer multi-microporous ceramic composite membrane for water treatment | |
| Singru et al. | Chelation ion‐exchange study of copolymer resin derived from 8‐hydroxyquinoline 5‐sulphonic acid, oxamide, and formaldehyde | |
| CN112439396A (en) | Hydroxyethylidene diphosphonic acid/hydroxyapatite organic-inorganic hybrid composite material and preparation method thereof | |
| WO1997016464A1 (en) | Use of polycarboxylic acid semi-amides as scale inhibitors | |
| Gao et al. | Lanthanides-based invisible multicolor luminescent hydrogels and films for anti-counterfeiting | |
| Liu et al. | Carboxylate-terminated double-hydrophilic block copolymer as an effective inhibitor for carbonate and sulphate scales | |
| CN113955867A (en) | Functional carbon dot corrosion and scale inhibitor for fluorescent tracing of traditional Chinese medicine residues, preparation method and application | |
| Bozkir et al. | High performance chromium (VI) removal from water by polyacrylonitrile‐co‐poly (2‐ethyl hexylacrylate) and polyaniline nanoporous membranes | |
| Rivas et al. | Poly (2‐acrylamido glycolic acid‐co‐2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid): Synthesis, characterization, and retention properties for environmentally impacting metal ions |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |