CN105195085A - Preparation method of dopamine modified sepiolite adsorbent - Google Patents
Preparation method of dopamine modified sepiolite adsorbent Download PDFInfo
- Publication number
- CN105195085A CN105195085A CN201510616013.6A CN201510616013A CN105195085A CN 105195085 A CN105195085 A CN 105195085A CN 201510616013 A CN201510616013 A CN 201510616013A CN 105195085 A CN105195085 A CN 105195085A
- Authority
- CN
- China
- Prior art keywords
- sepiolite
- dopamine
- preparation
- dopamine modified
- conducted
- 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
Abstract
The invention relates to a preparation method of a dopamine modified sepiolite adsorbent. The method comprises the steps that S1, sepiolite powder is weighed and put in a beaker, a hydrochloric acid solution is added, continuous magnetic stirring is conducted, and the mixture is transferred to a Buchner funnel, repeated washing is conducted through deionized water, suction filtration is conducted, and a gel filter cake is collected; S2, the gel filter cake is transferred into a wide-mouth bottle, the wide-mouth bottle is placed in a drying oven for 12 h, the gel filter cake in the wide-mouth bottle is taken out, and grinding is conducted on the gel filter cake to obtain acid-activated sepiolite; S3, the sepiolite which is activated through acid and dopamine hydrochloride is added in a trihydroxymethyl aminomethane buffer solution, and a magnetic stirring reaction is conducted at the room temperature; S4, the deionized water is used for water washing, centrifugation is conducted for multiple times through a centrifugal machine, drying is conducted in a vacuum drier for 24 h, and the dopamine modified sepiolite adsorbent is obtained. The preparation method of the dopamine modified sepiolite adsorbent has the advantages of being simple in technology, low in cost and high in efficiency.
Description
Technical field
The present invention relates to a kind of preparation method of dopamine modified meerschaum adsorbent.
Background technology
Since reform and opening-up, along with the fast development of China's economy, heavy metal pollution of soil is day by day serious, and contamination accident takes place frequently.How to administer the heavy metal-polluted focus having dyed people's research in soil, research and development heavy metal high-absorption material provides technical guarantee for administering heavy metal in soil pollution.
After soil is contaminated by heavy metals, Fertility Degeneration, the seed output and quality of crops all reduces, and water environment also can by impact to a certain extent.Heavy metal by food chain enrichment in people and organism, can also threaten to the health of human body, affects socioeconomic sustainable development.Chemical passivation repairing method is mainly by adding chemical inactivators, heavy metal in soil is adsorbed, precipitates, redox, the series reaction such as complexing and precipitation, change the occurrence status of heavy metal in soil, reduce their transportable property and bioavailability, thus repair contaminated by heavy metals soil.
The key of chemical passivation method is to select suitable, efficient chemical inactivators, and passivator can be divided into organic passivates and inorganic passivant.Compared with organic passivates, inorganic passivant kind more and heavy metal-polluted soil administer in apply more extensive.According to different character and source, electrodeless passivator can be divided into basic matterial, phosphoric acid salt, clay mineral, industry byproduct four class.Basic matterial mainly comprises lime, calcium carbonate and calcium silicates etc., and phosphoric acid salt mainly comprises hydroxyapatite, phosphate etc., and clay mineral mainly comprises sepiolite, concave convex rod and kaolinite etc., and industry byproduct comprises red mud, flyash, dolomite residue etc.
Sepiolite is the moisture magnesia silicate clay mineral of a kind of natural fiber, and belong to the false rhombic system of monocline, chemical formula is Mg
8si
12o
30(OH)
4(OH
2)
48H
2o.Sepiolite structure is very unique, and silicon-oxy tetrahedron and magnesia octahedron, mutually alternately in its construction unit, have stratiform and chain structure concurrently.Because the structure of this uniqueness, the specific area of sepiolite is high, and porosity is large, and catalytic, rheological characteristic and adsorptivity are all fine, can adsorb a large amount of polar substances, have broad application prospects.Explored sepiolite reserves have more than 5,000 ten thousand tons in the world, are present in the ground such as Spain, Turkey, the U.S., France, Korea, China in a large number.Through surveying for many years, China has found sepiolite reserves 1,200 ten thousand tons, accounts for 25% of the world.China's sepiolite is mainly divided into hot-liquid type and loam mould two kinds, and wherein, hot-liquid type is mainly distributed in the ground such as Hebei, Henan, Shaanxi, and loam mould is mainly distributed in the ground such as Liuyang, Xiang Tan, Ningxiang.
Containing impurity in natural sepiolite, the duct in crystal is owing to can block by extruding to a certain extent, and these make the application of natural sepiolite be restricted.Effect and the efficiency of sepiolite can be significantly improved through activation modification.At present, comparatively conventional method of modifying comprises: sour modification, surface organic modification, heat modification, ion-exchanged, mineral modified etc.Dopamine is cheap, excellent performance, enjoys the favor of research staff.After 2007 Science publish out the article about different matrix finishing dopamine, adopt dopamine to carry out study on the modification to material surface and caused the broad interest of people.Catechol group in poly-dopamine structure and azacyclo-atom can adsorb charged metal ion effectively, therefore, adopt dopamine to carry out to sepiolite the adsorption capacity that modification can improve sepiolite heavy metal.
It is reported, Su little Li etc. select softex kw to carry out modification to the sepiolite of Loping District, Northeast Kiangsi, and modified sepiolite specific area is unmodified 4.5 times.Mehmet adopts 3-(2-aminoethylamino) propyl trimethoxy silicane to carry out organically-modified to sepiolite, and modified sepiolite is to Zn
2+, Cu
2+, Co
2+, Fe
3+, Mn
2+and Cd
2+adsorption capacity be respectively 2.167 × 10
-4, 1.870 × 10
-4, 1.865 × 10
-4, 1.193 × 10
-4, 0.979 × 10
-4with 0.445 × 10
-4mol/g.Xu is willing to that heavily fortified point waits people to adopt mercaptopropyl trimethoxysilane to modify sepiolite, find that the sepiolite of sulfydryl modification is fine to the lead in solution and cadmium adsorption effect, the sepiolite after modification can reach 120mg/g and 35mg/g respectively to saturated extent of adsorption that is plumbous and cadmium.
Dopamine, 4-(2-amino-ethyl)-1,2-benzenediol, molecular formula C
6h
3(OH)
2-CH
2-CH
2-NH
2, often using with hydrochloride form, is white or the glossiness crystallization of off-white color, odorless, mildly bitter flavor.Dew puts in air and to meet photochromic gradual change dark.Easily molten in water, slightly soluble in absolute ethyl alcohol, soluble,very slightly in chloroform or ether.Fusing point 243 DEG C ~ 249 DEG C.
According to Messersmith etc., dopamine can occur to be oxidized self-polymeric reaction under hygrometric state, and its autohemagglutination product can be firmly attached to solid substrate.2007, Science upper reported first about the research of different matrix finishing dopamine, because dopamine is cheap, excellent performance, therefore enjoy the favor of research staff, adopt dopamine to carry out study on the modification to material surface and caused the broad interest of people.Catechol group, amino and imino group in poly-dopamine structure can adsorb charged metal ion effectively, and therefore, adopting dopamine to carry out the surface modified adsorption capacity improving sepiolite heavy metal that makes to sepiolite becomes possibility.But at present, adopting dopamine to carry out modification to sepiolite all rarely has report to adopt at home and abroad.
Summary of the invention
In view of the above-mentioned problems in the prior art, main purpose of the present invention is supplementary the deficiencies in the prior art, the invention provides that a kind of technique is simple, cost is low and the preparation method of efficiency much higher bar amine modified meerschaum adsorbent, the adsorbent applied range that the method prepares and can be used for containing heavy metal ion Cr
6+, Pb
2+, Cd
2+and Cu
2+wastewater treatment, the reparation of water body and the reparation of heavy-metal contaminated soil or by Cr
6+, Pb
2+, Cd
2+and Cu
2+deng the application of the combined pollution that detection device for multi metallic elements causes.
The invention provides a kind of preparation method of dopamine modified meerschaum adsorbent, comprise the following steps:
S1, sepiolite acid treatment: take the sepiolite powder of 1.0 ~ 5.0g through 200 mesh sieves in 250mL beaker, add 100mL0.5 ~ 2molL
-1hydrochloric acid solution, is transferred to Buchner funnel after continuous magnetic agitation 12h, repeatedly rinses by deionized water, and suction filtration also collects gel press cake;
S2, above-mentioned gel press cake is transferred to wide-mouth bottle, is placed in baking oven constant temperature 100 ~ 105 DEG C, after continuing 12h, the gel press cake in wide-mouth bottle is taken out, after grinding, obtain the sepiolite of acid activation;
S3, dopamine modified meerschaum: get above-mentioned by the sepiolite 1g of acid activation and 40 ~ 200mg Dopamine hydrochloride in 100ml trishydroxymethylaminomethane cushioning liquid, room temperature lower magnetic force stirring reaction 3 ~ 48h;
S4, be separated the sepiolite that passivation dopamine modifies: to use after washed with de-ionized water through repeatedly centrifugal on centrifuge, be placed in vacuum desiccator and carry out drying, drying time is 24h, obtains dopamine modified meerschaum adsorbent.
Optionally, the molar concentration of the described trishydroxymethylaminomethane cushioning liquid in described step S3 is 15mmol/L, and its pH value is 6 ~ 10.
Optionally, the pH value of described trishydroxymethylaminomethane cushioning liquid is 8.
Optionally, the rotating speed of the centrifuge used in described step S4 is 2000 ~ 4000rpm, and centrifugation time is 5 ~ 15min.
Optionally, the rotating speed of described centrifuge is 3000rpm, and centrifugation time is 10min.
The present invention has the following advantages and beneficial effect: the preparation method that the invention provides a kind of dopamine modified meerschaum adsorbent, it adopts simply, dipping process fast, trishydroxymethylaminomethane-Dopamine hydrochloride solution is selected to modify sepiolite, dopamine is gathered at sepiolite Surface Creation, improve sepiolite to the heavy metal adsorption amount in soil and water, this production technology fast and efficiently can make enterprise realize large-scale production, specifically has following characteristics or advantage:
(1) technique is simple: dopamine modified meerschaum preparation process of the present invention is fairly simple; by after major ingredient activation and modifier mixing, centrifugal, wash, drying can obtain the sepiolite of dopamine modification; this energy consumption of reaction is relatively low and have good economy, is conducive to accomplishing scale production.
(2) applied widely: adsorbent prepared by the present invention can be used for adsorbing the heavy metal in useless water and soil, there is good effect for the contaminated by heavy metals water and soil of improvement.
(3) advantages of good adsorption effect: the adsorption capacity of the sepiolite heavy metal (lead, chromium, cadmium, copper) that the present invention is modified increases significantly.
(4) economic and practical: adsorbent prepared by the present invention only need add and just can obtain good effect, environmental protection on a small quantity, and with low cost, using method is simple.
(5) this invention is except being applicable to the modification of clay material sepiolite, is also applicable to the performance boost of the multiple material such as palygorskite, zeolite.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated.
The preparation method of a kind of dopamine modified meerschaum adsorbent of the embodiment of the present invention, comprise the following steps: S1, sepiolite acid treatment: take the sepiolite powder of 1.0 ~ 5.0g through 200 mesh sieves in 250mL beaker, add 100mL0.5 ~ 2molL-1 hydrochloric acid solution, Buchner funnel is transferred to after continuous magnetic agitation 12h, repeatedly rinse by deionized water, suction filtration also collects gel press cake; S2, above-mentioned gel press cake is transferred to wide-mouth bottle, is placed in baking oven constant temperature 100 ~ 105 DEG C, after continuing 12h, the gel press cake in wide-mouth bottle is taken out, after grinding, obtain the sepiolite of acid activation; S3, dopamine modified meerschaum: get above-mentioned by the sepiolite 1g of acid activation and 40 ~ 200mg Dopamine hydrochloride in 100ml trishydroxymethylaminomethane cushioning liquid, the molar concentration of described trishydroxymethylaminomethane cushioning liquid is 15mmol/L, pH is 6.5, room temperature lower magnetic force stirring reaction 3 ~ 48h; S4, be separated the sepiolite that passivation dopamine modifies: to use after washed with de-ionized water through repeatedly centrifugal on centrifuge, be placed in vacuum desiccator and carry out drying, drying time is 24h, obtains dopamine modified meerschaum adsorbent; , the adsorbent applied range that the method prepares and can be used for containing heavy metal ion Cr
6+, Pb
2+, Cd
2+and Cu
2+wastewater treatment, the reparation of water body and the reparation of heavy-metal contaminated soil or by Cr
6+, Pb
2+, Cd
2+and Cu
2+deng the application of the combined pollution that detection device for multi metallic elements causes.
Embodiment 1
Sepiolite acid treatment: take the sepiolite powder of 1.0g through 200 mesh sieves in 250mL beaker, add 100mL0.5molL
-1hydrochloric acid solution, is transferred to Buchner funnel after continuous magnetic agitation 12h, repeatedly rinses by deionized water, and suction filtration also collects gel press cake; Above-mentioned gel press cake is transferred to wide-mouth bottle, is placed in baking oven constant temperature 100 DEG C, after continuing 12h, the gel press cake in wide-mouth bottle is taken out, after grinding, obtain the sepiolite of acid activation; Dopamine modified meerschaum: get above-mentioned by the sepiolite 1g of acid activation and 40mg Dopamine hydrochloride in 100ml trishydroxymethylaminomethane cushioning liquid, the molar concentration of described trishydroxymethylaminomethane cushioning liquid is 15mmol/L, pH is 6.5, room temperature lower magnetic force stirring reaction 3h; Be separated the sepiolite that passivation dopamine is modified: to use after washed with de-ionized water through repeatedly centrifugal on centrifuge, be placed in vacuum desiccator and carry out drying, drying time is 24h, obtains dopamine modified meerschaum adsorbent.
Embodiment 2
Sepiolite acid treatment: take the sepiolite powder of 3.0g through 200 mesh sieves in 250mL beaker, add 100mL1.0molL
-1hydrochloric acid solution, is transferred to Buchner funnel after continuous magnetic agitation 12h, repeatedly rinses by deionized water, and suction filtration also collects gel press cake; Above-mentioned gel press cake is transferred to wide-mouth bottle, is placed in baking oven constant temperature 103 DEG C, after continuing 12h, the gel press cake in wide-mouth bottle is taken out, after grinding, obtain the sepiolite of acid activation; Dopamine modified meerschaum: get above-mentioned by the sepiolite 1g of acid activation and 100mg Dopamine hydrochloride in 100ml trishydroxymethylaminomethane cushioning liquid, the molar concentration of described trishydroxymethylaminomethane cushioning liquid is 15mmol/L, pH is 8.0, room temperature lower magnetic force stirring reaction 24h; Be separated the sepiolite that passivation dopamine is modified: to use after washed with de-ionized water through repeatedly centrifugal on centrifuge, be placed in vacuum desiccator and carry out drying, drying time is 24h, obtains dopamine modified meerschaum adsorbent.
Embodiment 3
Sepiolite acid treatment: take the sepiolite powder of 5.0g through 200 mesh sieves in 250mL beaker, add 100mL2.0molL-1 hydrochloric acid solution, be transferred to Buchner funnel, repeatedly rinse by deionized water after continuous magnetic agitation 12h, suction filtration also collects gel press cake; Above-mentioned filter cake is transferred to wide-mouth bottle, is placed in baking oven constant temperature 100 ~ 105 DEG C, after continuing 12h, gel in wide-mouth bottle is taken out, after grinding, obtain acid activation sepiolite; Get by the sepiolite 1g that activates and 200mg Dopamine hydrochloride in 100ml trishydroxymethylaminomethane cushioning liquid, the molar concentration of described trishydroxymethylaminomethane cushioning liquid is 15mmol/L, pH is 9.5, room temperature lower magnetic force stirring reaction 48h, at rotating speed be 3000rpm centrifuge on carry out centrifugal motion 10min, be separated the sepiolite that passivation dopamine is modified, again centrifugal after washed with de-ionized water, sepiolite after centrifugal is placed in vacuum desiccator and carries out dry 24h, namely obtain the adsorbent of dopamine modified meerschaum.
Embodiment 4
The dopamine modified meerschaum adsorbent Cr in adsorption aqueous solution prepared with the present invention
6+, Pb
2+, Cd
2+and Cu
2+application: the Cr configuring a series of variable concentrations respectively
6+, Pb
2+, Cd
2+and Cu
2+solution, it can be used as working solution, measure the working solution 25ml of variable concentrations successively in 50ml centrifuge tube, weigh 0.025g dopamine to modify sepiolite and add respectively and added in the centrifuge tube of working solution, wherein, the ratio that dopamine modifies sepiolite and working solution is 1g: 1L, isothermal vibration absorption 6h, high speed centrifugation gets supernatant liquor, Cr in supernatant liquor after being separated
6+, Pb
2+, Cd
2+and Cu
2+concentration adopts atomic absorption spectrophotometer to measure, and calculates the adsorbance of dopamine modified meerschaum ABSORBENTS ABSORPTION metal according to concentration of heavy metal ion difference in working solution before and after absorption.
Result shows: dopamine modified meerschaum adsorbent is to Cr in solution
6+, Pb
2+, Cd
2+and Cu
2+pollution Deng heavy metal element all has good adsorption effect, and its saturated extent of adsorption is about Cr
6+36.31mg/g, Pb
2+72.37mg/g, Cd
2+41.98mg/g and Cu
2+24.10mg/g.
Last it is noted that above-described each embodiment is only for illustration of technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or to wherein partly or entirely technical characteristic carry out equivalent replacement; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a preparation method for dopamine modified meerschaum adsorbent, is characterized in that, comprises the following steps:
S1, sepiolite acid treatment: take the sepiolite powder of 1.0 ~ 5.0g through 200 mesh sieves in 250mL beaker, add 100mL0.5 ~ 2molL
-1hydrochloric acid solution, is transferred to Buchner funnel after continuous magnetic agitation 12h, repeatedly rinses by deionized water, and suction filtration also collects gel press cake;
S2, above-mentioned gel press cake is transferred to wide-mouth bottle, is placed in baking oven constant temperature 100 ~ 105 DEG C, after continuing 12h, the gel press cake in wide-mouth bottle is taken out, after grinding, obtain the sepiolite of acid activation;
S3, dopamine modified meerschaum: get above-mentioned by the sepiolite 1g of acid activation and 40 ~ 200mg Dopamine hydrochloride in 100ml trishydroxymethylaminomethane cushioning liquid, room temperature lower magnetic force stirring reaction 3 ~ 48h;
S4, be separated the sepiolite that passivation dopamine modifies: to use after washed with de-ionized water through repeatedly centrifugal on centrifuge, be placed in vacuum desiccator and carry out drying, drying time is 24h, obtains dopamine modified meerschaum adsorbent.
2. the preparation method of dopamine modified meerschaum adsorbent according to claim 1, is characterized in that, the molar concentration of the described trishydroxymethylaminomethane cushioning liquid in described step S3 is 15mmol/L, and its pH value is 6 ~ 10.
3. the preparation method of dopamine modified meerschaum adsorbent according to claim 2, is characterized in that, the pH value of described trishydroxymethylaminomethane cushioning liquid is 8.
4. the preparation method of dopamine modified meerschaum adsorbent according to claim 1, is characterized in that, the rotating speed of the centrifuge used in described step S4 is 2000 ~ 4000rpm, and centrifugation time is 5 ~ 15min.
5. the preparation method of dopamine modified meerschaum adsorbent according to claim 4, is characterized in that, the rotating speed of described centrifuge is 3000rpm, and centrifugation time is 10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616013.6A CN105195085A (en) | 2015-09-24 | 2015-09-24 | Preparation method of dopamine modified sepiolite adsorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616013.6A CN105195085A (en) | 2015-09-24 | 2015-09-24 | Preparation method of dopamine modified sepiolite adsorbent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105195085A true CN105195085A (en) | 2015-12-30 |
Family
ID=54943244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510616013.6A Pending CN105195085A (en) | 2015-09-24 | 2015-09-24 | Preparation method of dopamine modified sepiolite adsorbent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105195085A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186245A (en) * | 2016-08-18 | 2016-12-07 | 付竹兰 | A kind of method of microcystic aeruginosa in effective removal water |
| CN106799210A (en) * | 2017-01-24 | 2017-06-06 | 湘潭大学 | A kind of preparation method and application of sepiolite base adsorbent |
| CN106944018A (en) * | 2017-04-17 | 2017-07-14 | 湖南大学 | A kind of polyethyleneimine-modified meerschaum adsorbent and its preparation method and application |
| CN108147380A (en) * | 2018-01-08 | 2018-06-12 | 湘潭大学 | A kind of preparation method of honeycomb carbonitride |
| CN108164176A (en) * | 2017-12-01 | 2018-06-15 | 蒋春霞 | A kind of preparation method of concrete accelerant |
| CN108373894A (en) * | 2018-04-04 | 2018-08-07 | 常州五荣化工有限公司 | A kind of modified EVA hot-melt adhesive |
| CN110128195A (en) * | 2019-05-08 | 2019-08-16 | 绵阳市蜀创农业科技有限公司 | A kind of fern fiber crops special fertilizer and preparation method thereof |
| CN110143626A (en) * | 2019-07-04 | 2019-08-20 | 李洪 | Industrial waste water treatment agent and its production technology |
| CN112090414A (en) * | 2020-09-03 | 2020-12-18 | 宜兴国际环保城科技发展有限公司 | Sewage treatment agent and preparation method thereof |
| CN112892486A (en) * | 2021-01-19 | 2021-06-04 | 西南科技大学 | Preparation method of inorganic heavy metal waste liquid adsorption material, adsorption material and application |
| CN113634236A (en) * | 2021-08-13 | 2021-11-12 | 河北省易县海泡石开发有限公司 | Modification process of sepiolite and application of modified sepiolite |
| CN113750972A (en) * | 2021-10-25 | 2021-12-07 | 深圳技术大学 | Chromium ion adsorbent and preparation method thereof |
| CN115178228A (en) * | 2022-06-27 | 2022-10-14 | 湖南国重环境科技有限责任公司 | Fe-Mn @ PDA @ ASEP composite material and preparation method and application thereof |
| CN116988182A (en) * | 2023-09-04 | 2023-11-03 | 江苏恒科新材料有限公司 | Dyeable special-shaped polyester fiber for spinning |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030309A (en) * | 2014-06-26 | 2014-09-10 | 淮阴工学院 | Fiber-type clay organic modification method based on dopamine modification |
| CN104209094A (en) * | 2014-09-28 | 2014-12-17 | 中国科学院重庆绿色智能技术研究院 | Preparation method of sepiolite heavy metal absorbent modified with amino acid carboxylic acid |
| US20150073071A1 (en) * | 2013-09-09 | 2015-03-12 | Mauro Zammarano | Flame retardant coatings |
-
2015
- 2015-09-24 CN CN201510616013.6A patent/CN105195085A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150073071A1 (en) * | 2013-09-09 | 2015-03-12 | Mauro Zammarano | Flame retardant coatings |
| CN104030309A (en) * | 2014-06-26 | 2014-09-10 | 淮阴工学院 | Fiber-type clay organic modification method based on dopamine modification |
| CN104209094A (en) * | 2014-09-28 | 2014-12-17 | 中国科学院重庆绿色智能技术研究院 | Preparation method of sepiolite heavy metal absorbent modified with amino acid carboxylic acid |
Non-Patent Citations (4)
| Title |
|---|
| V.MARJANOVIC ET AL.: "Adsorption of chromium(VI) from aqueous solutions onto amine-functionalzied natural and acid-activated sepiolites", 《APPLIED CLAY SCIENCE》 * |
| 刘洪等: "基于多巴胺修饰的凹凸棒石有机改性", 《淮阴工学院学报》 * |
| 徐又一等: "多巴胺的自聚-附着行为与膜表面功能化", 《膜科学与技术》 * |
| 秦文淑: "改性粘土的应用及其研究前景", 《广东轻工职业技术学院学报》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186245A (en) * | 2016-08-18 | 2016-12-07 | 付竹兰 | A kind of method of microcystic aeruginosa in effective removal water |
| CN106799210A (en) * | 2017-01-24 | 2017-06-06 | 湘潭大学 | A kind of preparation method and application of sepiolite base adsorbent |
| CN106944018A (en) * | 2017-04-17 | 2017-07-14 | 湖南大学 | A kind of polyethyleneimine-modified meerschaum adsorbent and its preparation method and application |
| CN106944018B (en) * | 2017-04-17 | 2020-06-16 | 湖南大学 | Polyethyleneimine modified sepiolite adsorbent and preparation method and application thereof |
| CN108164176A (en) * | 2017-12-01 | 2018-06-15 | 蒋春霞 | A kind of preparation method of concrete accelerant |
| CN108147380A (en) * | 2018-01-08 | 2018-06-12 | 湘潭大学 | A kind of preparation method of honeycomb carbonitride |
| CN108373894A (en) * | 2018-04-04 | 2018-08-07 | 常州五荣化工有限公司 | A kind of modified EVA hot-melt adhesive |
| CN110128195A (en) * | 2019-05-08 | 2019-08-16 | 绵阳市蜀创农业科技有限公司 | A kind of fern fiber crops special fertilizer and preparation method thereof |
| CN110143626A (en) * | 2019-07-04 | 2019-08-20 | 李洪 | Industrial waste water treatment agent and its production technology |
| CN112090414B (en) * | 2020-09-03 | 2023-03-21 | 宜兴国际环保城科技发展有限公司 | Sewage treatment agent and preparation method thereof |
| CN112090414A (en) * | 2020-09-03 | 2020-12-18 | 宜兴国际环保城科技发展有限公司 | Sewage treatment agent and preparation method thereof |
| CN112892486A (en) * | 2021-01-19 | 2021-06-04 | 西南科技大学 | Preparation method of inorganic heavy metal waste liquid adsorption material, adsorption material and application |
| CN113634236A (en) * | 2021-08-13 | 2021-11-12 | 河北省易县海泡石开发有限公司 | Modification process of sepiolite and application of modified sepiolite |
| CN113750972A (en) * | 2021-10-25 | 2021-12-07 | 深圳技术大学 | Chromium ion adsorbent and preparation method thereof |
| CN113750972B (en) * | 2021-10-25 | 2023-10-03 | 深圳技术大学 | Chromium ion adsorbent and preparation method thereof |
| CN115178228A (en) * | 2022-06-27 | 2022-10-14 | 湖南国重环境科技有限责任公司 | Fe-Mn @ PDA @ ASEP composite material and preparation method and application thereof |
| CN115178228B (en) * | 2022-06-27 | 2024-01-05 | 湖南国重环境科技有限责任公司 | Fe-Mn@PDA@ASEP composite material and preparation method and application thereof |
| CN116988182A (en) * | 2023-09-04 | 2023-11-03 | 江苏恒科新材料有限公司 | Dyeable special-shaped polyester fiber for spinning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105195085A (en) | Preparation method of dopamine modified sepiolite adsorbent | |
| CN103894395B (en) | A kind of method that heavy-metal contaminated soil secondary is repaired | |
| Dimirkou et al. | Use of clinoptilolite and an Fe-overexchanged clinoptilolite in Zn2+ and Mn2+ removal from drinking water | |
| Siswoyo et al. | Determination of key components and adsorption capacity of a low cost adsorbent based on sludge of drinking water treatment plant to adsorb cadmium ion in water | |
| CN103894396B (en) | A kind of method of administering heavy-metal contaminated soil | |
| CN102527347A (en) | Magnetic chitosan/cationic surface active agent modified zeolite adsorbent and preparation method and application thereof | |
| CN103894397B (en) | A kind of method of three grades of restoration of soil polluted by heavy metal | |
| CN100522342C (en) | A preparation method of organobentonite for removing water-solubility organic pollutant | |
| CN101811021B (en) | Amphiphilic adsorbent capable of adsorbing both organic matter and heavy metal cation and preparation method thereof | |
| Zhang et al. | Removal of Cd (II) by modified maifanite coated with Mg-layered double hydroxides in constructed rapid infiltration systems | |
| CN103933936B (en) | A kind of preparation method and application of antibiotic compound adsorbent | |
| CN101279239A (en) | Organic modified mineral adsorbing material and method of producing the same | |
| Linghu et al. | Macroscopic and spectroscopic exploration on the removal performance of titanate nanotubes towards Zn (II) | |
| CN101428811A (en) | Inorganic modified alta-mud and method for producing the same | |
| CN106745592B (en) | It is a kind of with heavy metal ion adsorbed and detection function composite flocculation agent and preparation method thereof | |
| Rahman et al. | Development of poly-o-toluidine zirconium (IV) ethylenediamine as a new adsorbent for nitrate: Equilibrium modelling and thermodynamic studies | |
| CN101142921A (en) | Zeolite nanometer-zinc-oxide-loaded inorganic inhibiting sulfate reducing bacteria powder and its preparation method | |
| CN108191181A (en) | A kind of urban river sediment cleanser and its production method | |
| CN104209094A (en) | Preparation method of sepiolite heavy metal absorbent modified with amino acid carboxylic acid | |
| CN101734678A (en) | Organic modified bentonite and preparation method thereof | |
| Dai et al. | Rapid adsorption of acetochlor and metolachlor from aqueous solution onto solid waste coal fly ash | |
| CN106111081B (en) | A kind of silica adsorbent and its preparation method and application of Zero-valent Iron/chitosan-modified | |
| CN110681344B (en) | Zirconium series nano hybrid material and application method thereof | |
| CN112844304A (en) | Sodium pyrophosphate modified water purification sludge/zeolite composite adsorbent and preparation method and application thereof | |
| CN112844303A (en) | Water purification sludge/sodium silicate composite adsorbent, preparation method thereof and application thereof in treating ammonia nitrogen in water body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |