CN109052542A - A kind of preparation method for the modified carbon nano-tube removing mercury ions in waste water - Google Patents
A kind of preparation method for the modified carbon nano-tube removing mercury ions in waste water Download PDFInfo
- Publication number
- CN109052542A CN109052542A CN201811037520.4A CN201811037520A CN109052542A CN 109052542 A CN109052542 A CN 109052542A CN 201811037520 A CN201811037520 A CN 201811037520A CN 109052542 A CN109052542 A CN 109052542A
- Authority
- CN
- China
- Prior art keywords
- tube
- carbon nano
- waste water
- preparation
- mercury ions
- 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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
- B01J20/205—Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs
-
- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/262—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to a kind of preparation methods that the poly-dopamine for removing mercury ions in waste water is carbon nano-tube modified, and step includes: the pretreatment of (1) modified carbon nano-tube；(2) preparation of poly-dopamine modified lithium carbon nanotube；(3) mercury ion is adsorbed from waste water using modified carbon nano-tube；(4) adsorbance of test absorption front and back mercury ion, evaluates the absorption property of modified carbon nano-tube.This method is simple, efficient, suitable for quickly removing the metal mercury ions waste water.
Description
Technical field
The invention belongs to the application fields of Environmental Chemistry, the in particular to minimizing technology of heavy metal ions in wastewater.
Background technique
With the rapid development of industry, heavy metal ion pollution has seriously affected human society survival and development and has formed
For the hot issue of World Focusing.Mercury ion in environment is easy to enter in human body by food chain, can make to human health
At serious threat, it can cause to have a headache, have difficulty in breathing, cause intravascular hemolysis, injuring nerve system, based on these harm, people
Have studied a variety of methods to administer mercury ion waste liquid.Oneself is had investigated various ways to remove mercury ion to people,
Such as the filtering of the precipitation method, film, ion exchange, electrolysis method and absorption method, wherein absorption method is the most common method of people, this
Method operation is terse, and energy consumption is few, and expense is low, it is most important that removal rate is high.Nano material in adsorbent material has many suctions
Attached advantage, therefore by favor.
Carbon nanotube possesses in the bigger serface and high stability that traditional material does not have in terms of noxious substance
Blank pipe shape special construction makes it possess huge applications value in wastewater treatment and other field, especially in absorption heavy metal side
Face is had outstanding performance, while being studied also more.In order to preferably adsorb, be enriched with to heavy metal ion, researcher utilizes carbon
The characteristic that nanotube surface is easily modified is modified processing to it, its surface is made to connect upper specific functional group, can be to certain
Heavy metal has a good absorption property, this kind of application studies be paid more and more attention and carried out a variety of modification groups or
The research of polymer for heavy metals absorption.
Dopamine is that can be occurred under aerobic weak basic condition based on it with good adhesiveness to the modification of material
Autoxidation polymerization, generates a kind of one poly-dopamine of macromolecule and is adhered to matrix surface.This kind of macromolecule equally has various active
Group has good adsorptivity to positive heavy metal ion.It is basic adsorbent material with carbon nanotube, with chemical means to it
Surface modified, developing the high heavy-metal adsorption material of the novel adsorbance of one kind has potential application prospect.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of method for removing heavy metal in waste water mercury ion, this method
The carbon nanotube modified using dopamine is as adsorbent, time-consuming less using the method for Static Adsorption, being capable of quick, high dose
Slave waste water in adsorb metal mercury ions；The prices of raw materials used in the present invention are cheap, obtained modified carbon nano-tube
Surface area with higher, adsorption capacity is strong, the potentiality with subsequent related application.
A kind of preparation method of the modified carbon nano-tube of removal mercury ions in waste water of the invention, comprising:
(1) pretreatment of carbon nanotube: take appropriate unmodified carbon nanotube in crucible, being placed in one timing of heating in Muffle furnace
Between, agraphitic carbon impurity is removed, cooling, kept dry is spare；
(2) poly-dopamine modified lithium carbon nanotube: weighing the carbon nanotube in step (1), ultrasonic treatment, then weighs a certain amount of more
Bar amine hydrochlorate, is placed in Tris-HCl buffer, room temperature magnetic agitation certain time, is repeatedly washed through ultrapure water to neutrality,
The modified carbon nano-tube washed is dried into 8 ~ 12 h in a vacuum drying oven, it is spare.
The temperature of the Muffle furnace as described in step (1) is 300 ~ 400 DEG C.
The heating time as described in step (1) is 20 ~ 50 min.
The quality of carbon nanotube described in the step (2) is 1.0 ~ 3.0 g.
The time of the ultrasonic treatment of carbon described in the step (2) is 20 ~ 50 min.
The quality of carbon dopamine hydrochloride described in the step (2) is 0.5 ~ 2.0 g.
The concentration of Tris-HCl buffer described in the step (2) are as follows: 0.001 ~ 0.1 mol/L, pH value are 6 ~ 9.
The time being stirred at room temperature described in the step (2) are as follows: 10 ~ 30 h.
Beneficial effect
(1) poly-dopamine modified lithium carbon nanotube prepared by the present invention, it is easy to operate, it is easy to industrial amplification；
(2) poly-dopamine modified lithium carbon nanotube prepared by the present invention quickly, in the slave waste water of high dose can adsorb heavy metal Hg
Ion.
Detailed description of the invention
Fig. 1 is adsorbance of the modified carbon nano-tube to mercury ion.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
The preparation of poly-dopamine modified lithium carbon nanotube, includes the following steps:
(1) pretreatment of carbon nanotube: take appropriate unmodified carbon nanotube in crucible, being placed in 350 DEG C of heating 30 in Muffle furnace
Min removes agraphitic carbon impurity, and cooling, kept dry is spare；
(2) poly-dopamine modified lithium carbon nanotube: weighing 2.0 g of carbon nanotube in step (1), is ultrasonically treated 30 min, then claim
1.0 g dopamine hydrochlorides are taken, are placed in Tris-HCl (pH=8.5) buffer of 0.01 mol/L, room temperature (25 DEG C) magnetic
Power stirs 24 h, is repeatedly washed through ultrapure water to neutrality, and the modified carbon nano-tube washed is done in 50 DEG C of vacuum ovens
Dry 12 h, it is spare.
Embodiment 2
Modified carbon nano-tube includes the following steps: the adsorption experiment of mercury ion
100 mL of mercury ion solution of the mg/L of 30 mg/L ~ 400 is measured respectively in 150 mL beakers, accurately weighs more parts of changes
0.05 g modified carbon nano-tube, is put in beaker, adjust pH be 5, shake 3 h at room temperature, then detection absorption after mercury from
Sub- concentration, is calculated as follows adsorbanceq e。
q e=(C0-C1)V/m
In formula, C0、CtRespectively indicate ion concentration of mercury in initial soln (mg/L), C1For oscillation terminate rear solution in metal from
Sub- concentration (mg/L),VFor the volume (L) of aqueous solution, m is the quality (g) of modified carbon nano-tube.
Fig. 1 reflects influence of the concentration to absorption, and the adsorbance of modified carbon nano-tube is with ion concentration of mercury in solution
Increase and increase, until absorption reaches balance.When ion concentration of mercury is lower, the adsorbance of adsorbent is less, this may be because
For at low concentrations, the adsorption site on modified carbon nano-tube is not fully utilized；And with the increase of ion concentration of mercury, absorption
The adsorption site of unsaturated state in agent continues and mercury ion combines, to make adsorbance increase, until absorption reaches balance.From
We can also be seen that adsorbent is 86.3 mg/g to the maximum saturation adsorbance of mercury ion in figure, illustrate absorption of the invention
Agent is that a kind of adsorption capacity is big, efficient adsorbent for heavy metal.
Claims (8)
1. a kind of preparation method for the modified carbon nano-tube for removing mercury ions in waste water, including the following steps:
(1) pretreatment of carbon nanotube: take appropriate unmodified carbon nanotube in crucible, being placed in one timing of heating in Muffle furnace
Between, agraphitic carbon impurity is removed, cooling, kept dry is spare；
(2) poly-dopamine modified lithium carbon nanotube: weighing the carbon nanotube in step (1), ultrasonic treatment, then weighs a certain amount of more
Bar amine hydrochlorate, is placed in Tris-HCl buffer, room temperature magnetic agitation certain time, is repeatedly washed through ultrapure water to neutrality,
The modified carbon nano-tube washed is dried into 8 ~ 12 h in a vacuum drying oven, it is spare.
2. a kind of preparation method of modified carbon nano-tube for removing mercury ions in waste water according to claim 1, feature
It is, the temperature of the Muffle furnace as described in step (1) is 300 ~ 400 DEG C.
3. a kind of preparation method of modified carbon nano-tube for removing mercury ions in waste water according to claim 1, feature
It is, the heating time as described in step (1) is 20 ~ 50 min.
4. a kind of preparation method of modified carbon nano-tube for removing mercury ions in waste water according to claim 1, feature
It is, the quality of carbon nanotube described in the step (2) is 1.0 ~ 3.0 g.
5. a kind of preparation method of modified carbon nano-tube for removing mercury ions in waste water according to claim 1, feature
It is, the time of the ultrasonic treatment of carbon described in the step (2) is 20 ~ 50 min.
6. a kind of preparation method of modified carbon nano-tube for removing mercury ions in waste water according to claim 1, feature
It is, the quality of carbon dopamine hydrochloride described in the step (2) is 0.5 ~ 2.0 g.
7. a kind of preparation method of modified carbon nano-tube for removing mercury ions in waste water according to claim 1, feature
It is, the concentration of Tris-HCl buffer described in the step (2) are as follows: 0.001 ~ 0.1 mol/L, pH value are 6 ~ 9.
8. a kind of preparation method of modified carbon nano-tube for removing mercury ions in waste water according to claim 1, feature
It is, the time of room temperature magnetic agitation described in the step (2) are as follows: 10 ~ 30 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037520.4A CN109052542A (en) | 2018-09-06 | 2018-09-06 | A kind of preparation method for the modified carbon nano-tube removing mercury ions in waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037520.4A CN109052542A (en) | 2018-09-06 | 2018-09-06 | A kind of preparation method for the modified carbon nano-tube removing mercury ions in waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109052542A true CN109052542A (en) | 2018-12-21 |
Family
ID=64759851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811037520.4A Pending CN109052542A (en) | 2018-09-06 | 2018-09-06 | A kind of preparation method for the modified carbon nano-tube removing mercury ions in waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109052542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713630A (en) * | 2021-04-20 | 2021-11-30 | 保定源汉升新材料科技有限公司 | Composite membrane synthesis method for adsorbing gaseous mercury and composite membrane |
| CN114950154A (en) * | 2022-05-12 | 2022-08-30 | 北京工业大学 | Polydopamine modified carbon nanotube-graphene oxide membrane and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012806A (en) * | 2012-12-27 | 2013-04-03 | 复旦大学 | Synthetic method and application of polydopamine-modified carbon nanotube composite material |
| CN104437358A (en) * | 2014-10-20 | 2015-03-25 | 张亦彬 | Process for preparing a composite adsorption material capable of simultaneously absorbing heavy metal ions and volatile organic substances in waste gas |
| CN105854846A (en) * | 2016-06-23 | 2016-08-17 | 四川大学 | Dopamine-modified adsorbent as well as preparation and application thereof |
| CN105879841A (en) * | 2016-05-31 | 2016-08-24 | 河南师范大学 | SiO2@PDA@ZIF-8 composite adsorbent for selectively adsorbing lead ions in wastewater and preparing method thereof |
| CN106830168A (en) * | 2017-03-19 | 2017-06-13 | 兰州理工大学 | A kind of method for efficiently removing heavy metal ion and organic matter in water removal |
| CN107523381A (en) * | 2017-09-30 | 2017-12-29 | 陕西科技大学 | A kind of preparation method of graphene carbon nanometer tube composite materials load nano copper particle lubriation material |
-
2018
- 2018-09-06 CN CN201811037520.4A patent/CN109052542A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103012806A (en) * | 2012-12-27 | 2013-04-03 | 复旦大学 | Synthetic method and application of polydopamine-modified carbon nanotube composite material |
| CN104437358A (en) * | 2014-10-20 | 2015-03-25 | 张亦彬 | Process for preparing a composite adsorption material capable of simultaneously absorbing heavy metal ions and volatile organic substances in waste gas |
| CN105879841A (en) * | 2016-05-31 | 2016-08-24 | 河南师范大学 | SiO2@PDA@ZIF-8 composite adsorbent for selectively adsorbing lead ions in wastewater and preparing method thereof |
| CN105854846A (en) * | 2016-06-23 | 2016-08-17 | 四川大学 | Dopamine-modified adsorbent as well as preparation and application thereof |
| CN106830168A (en) * | 2017-03-19 | 2017-06-13 | 兰州理工大学 | A kind of method for efficiently removing heavy metal ion and organic matter in water removal |
| CN107523381A (en) * | 2017-09-30 | 2017-12-29 | 陕西科技大学 | A kind of preparation method of graphene carbon nanometer tube composite materials load nano copper particle lubriation material |
Non-Patent Citations (2)
| Title |
|---|
| 李鹏莉等: "聚多巴胺改性碳纳米管对Pb2+的吸附性能", 《河南大学学报（自然科学版）》 * |
| 覃小红: "《纳米技术与纳米纺织品》", 31 December 2011, 东华大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713630A (en) * | 2021-04-20 | 2021-11-30 | 保定源汉升新材料科技有限公司 | Composite membrane synthesis method for adsorbing gaseous mercury and composite membrane |
| CN113713630B (en) * | 2021-04-20 | 2023-09-19 | 保定源汉升新材料科技有限公司 | Composite membrane synthesis method for adsorbing gaseous mercury and composite membrane |
| CN114950154A (en) * | 2022-05-12 | 2022-08-30 | 北京工业大学 | Polydopamine modified carbon nanotube-graphene oxide membrane and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109012594A (en) | The preparation method of the modified carbon nano-tube of chromium ion in a kind of removal waste water | |
| CN109012595A (en) | A kind of preparation method of modified carbon nano-tube adsorbent for heavy metal | |
| CN104923161B (en) | A kind of preparation method and applications of magnetic oxygenated graphene | |
| CN103480333B (en) | A kind of compound Graphene adsorbent and preparation method thereof, application | |
| CN105498707B (en) | A kind of preparation method and application of modified graphene oxide/Chitosan Composites | |
| CN107537455B (en) | A kind of method for the preparation of magnetic Nano biological adsorption agent and its adsorption of Low Concentration uranium that amidoxim is modified | |
| CN106861631A (en) | Hollow mesoporous silicon dioxide nano microballoon of functionalization and preparation method thereof and the application in Adsorption of Heavy Metals ion | |
| CN107324616B (en) | A kind for the treatment of process of heavy metal containing sewage | |
| CN107715855A (en) | A kind of porous carbon materials for being used for organic dyestuff and fluoride wastewater treatment and preparation method thereof | |
| CN103933948A (en) | Grated loading method of nano Fe3O4 and beer saccharomycete and application thereof | |
| CN106495335B (en) | A method of utilizing rhodium ion in HCl treatment Pichia pastoris absorption waste water | |
| CN109052542A (en) | A kind of preparation method for the modified carbon nano-tube removing mercury ions in waste water | |
| CN107151665A (en) | The method that immobilization endophyte biological adsorption agent handles lead waste water | |
| CN109046300A (en) | A kind of preparation method for the modified carbon nano-tube adsorbing heavy metal copper ion | |
| CN108993446A (en) | A kind of preparation method of adsorbent for heavy metal | |
| CN110449132A (en) | A kind of preparation method and applications of modified carbon nano-tube adsorbent | |
| CN107376857A (en) | It is a kind of to be used to adsorb compound hydrogel material of heavy metal and preparation method thereof | |
| CN107200375A (en) | A kind of efficient method for removing metal copper ion in waste water | |
| CN107051393A (en) | Magnesium silicate hydro-thermal carbon composite and its preparation method and application | |
| CN105110487B (en) | The microorganism of plutonium removes and recovery method in a kind of acid waste water | |
| CN109052541A (en) | A method of removal heavy metal in waste water nickel ion | |
| CN104289200B (en) | A kind of preparation method and application of magnetic HACC/ oxidation multi-walled carbon nano-tubes adsorbent | |
| CN107159094B (en) | The method of tetracycline in magnetic magnesium hydroxide adsorbent removal waste water | |
| CN103937779A (en) | Preparation and application method of magnetic chitosan biological immobilized particles | |
| CN106902737A (en) | A kind of tealeaf residue biology carbon material being modified based on Nano Silver and preparation method and application |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181221 |