CN109052541A - A method of removal heavy metal in waste water nickel ion - Google Patents
A method of removal heavy metal in waste water nickel ion Download PDFInfo
- Publication number
- CN109052541A CN109052541A CN201811036744.3A CN201811036744A CN109052541A CN 109052541 A CN109052541 A CN 109052541A CN 201811036744 A CN201811036744 A CN 201811036744A CN 109052541 A CN109052541 A CN 109052541A
- Authority
- CN
- China
- Prior art keywords
- nickel ion
- heavy metal
- waste water
- removing heavy
- water nickel
- 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
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- 229910001453 nickel ion Inorganic materials 0.000 title claims abstract description 30
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002351 wastewater Substances 0.000 title claims abstract description 18
- SPIFDSWFDKNERT-UHFFFAOYSA-N nickel;hydrate Chemical compound O.[Ni] SPIFDSWFDKNERT-UHFFFAOYSA-N 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 18
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 18
- 229920001690 polydopamine Polymers 0.000 claims abstract description 8
- YZSKZXUDGLALTQ-UHFFFAOYSA-N [Li][C] Chemical class [Li][C] YZSKZXUDGLALTQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 4
- 238000009210 therapy by ultrasound Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 3
- 239000012498 ultrapure water Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- CTENFNNZBMHDDG-UHFFFAOYSA-N Dopamine hydrochloride Chemical compound Cl.NCCC1=CC=C(O)C(O)=C1 CTENFNNZBMHDDG-UHFFFAOYSA-N 0.000 claims description 2
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 claims description 2
- 229960001149 dopamine hydrochloride Drugs 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 19
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 6
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 229960003638 dopamine Drugs 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010018910 Haemolysis Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010022822 Intravascular haemolysis Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- -1 dopamine hydrochlorides Chemical class 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
-
- 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
Abstract
The present invention relates to a kind of methods for removing heavy metal in waste water nickel ion, and step includes: the pretreatment of (1) modified carbon nano-tube；(2) preparation of poly-dopamine modified lithium carbon nanotube；(3) nickel ion is adsorbed from waste water using modified carbon nano-tube；(4) adsorbance of test absorption front and back nickel ion, evaluates the absorption property of modified carbon nano-tube.This method is simple, efficient, suitable for quickly removing the heavy metal nickel ion 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.Nickel 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 nickel ion waste liquid.Oneself is had investigated various ways to remove nickel 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 nickel 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 heavy metal nickel ion；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 method of removal heavy metal in waste water nickel ion 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 nickel
Ion.
Detailed description of the invention
Fig. 1 is adsorbance of the modified carbon nano-tube to nickel 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,
1.0 g dopamine hydrochlorides are weighed again, are placed in Tris-HCl (pH=8.5) buffer of 0.01 mol/L, room temperature (25
DEG C) 24 h of magnetic agitation, it is repeatedly washed through ultrapure water to neutrality, the modified carbon nano-tube washed is dried in vacuo in 50 DEG C
Dry 12 h, spare in case.
Embodiment 2
Modified carbon nano-tube includes the following steps: the adsorption experiment of nickel ion
100 mL of nickel 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 nickel from
Sub- concentration, is calculated as follows adsorbanceq e。
q e=(C0-C1)V/m
In formula, C0、CtRespectively indicate nickel ion concentration 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 nickel ion concentration in solution
Increase and increase, until absorption reaches balance.When nickel ion concentration 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 nickel ion concentration, absorption
The adsorption site of unsaturated state in agent continues and nickel ion combines, to make adsorbance increase, until absorption reaches balance.From
We can also be seen that adsorbent is 55.4 mg/g to the maximum saturation adsorbance of nickel ion in figure, illustrate absorption of the invention
Agent is that a kind of this adsorption capacity is big, efficient adsorbent for heavy metal.
Claims (8)
1. a kind of method for removing heavy metal in waste water nickel ion, 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 method for removing heavy metal in waste water nickel ion according to claim 1, which is characterized in that the step
(1) temperature of the Muffle furnace described in is 300 ~ 400 DEG C.
3. a kind of method for removing heavy metal in waste water nickel ion according to claim 1, which is characterized in that the step
(1) heating time described in is 20 ~ 50 min.
4. a kind of method for removing heavy metal in waste water nickel ion according to claim 1, which is characterized in that the step
(2) quality of the carbon nanotube described in is 1.0 ~ 3.0 g.
5. a kind of method for removing heavy metal in waste water nickel ion according to claim 1, which is characterized in that the step
(2) time of the carbon ultrasonic treatment described in is 20 ~ 50 min.
6. a kind of method for removing heavy metal in waste water nickel ion according to claim 1, which is characterized in that the step
(2) quality of the carbon dopamine hydrochloride described in is 0.5 ~ 2.0 g.
7. a kind of method for removing heavy metal in waste water nickel ion according to claim 1, which is characterized in that the step
(2) concentration of Tris-HCl buffer described in are as follows: 0.001 ~ 0.1 mol/L, pH value are 6 ~ 9.
8. a kind of method for removing heavy metal in waste water nickel ion according to claim 1, which is characterized in that the step
(2) time of room temperature magnetic agitation described in are as follows: 10 ~ 30 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036744.3A CN109052541A (en) | 2018-09-06 | 2018-09-06 | A method of removal heavy metal in waste water nickel ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036744.3A CN109052541A (en) | 2018-09-06 | 2018-09-06 | A method of removal heavy metal in waste water nickel ion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109052541A true CN109052541A (en) | 2018-12-21 |
Family
ID=64759849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811036744.3A Pending CN109052541A (en) | 2018-09-06 | 2018-09-06 | A method of removal heavy metal in waste water nickel ion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109052541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112888287A (en) * | 2021-01-12 | 2021-06-01 | 无锡东恒新能源科技有限公司 | Preparation method of electromagnetic shielding material |
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|---|---|---|---|---|
| CN103012806A (en) * | 2012-12-27 | 2013-04-03 | 复旦大学 | Synthetic method and application of polydopamine-modified carbon nanotube composite material |
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2018
- 2018-09-06 CN CN201811036744.3A patent/CN109052541A/en active Pending
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| CN112888287A (en) * | 2021-01-12 | 2021-06-01 | 无锡东恒新能源科技有限公司 | Preparation method of electromagnetic shielding material |
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