CN109455790A - A method of utilizing two-dimentional black phosphorus material efficient degradation organic pollutant - Google Patents
A method of utilizing two-dimentional black phosphorus material efficient degradation organic pollutant Download PDFInfo
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- CN109455790A CN109455790A CN201811422412.9A CN201811422412A CN109455790A CN 109455790 A CN109455790 A CN 109455790A CN 201811422412 A CN201811422412 A CN 201811422412A CN 109455790 A CN109455790 A CN 109455790A
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- CN
- China
- Prior art keywords
- black phosphorus
- organic pollutant
- phosphorus material
- efficient degradation
- dimentional
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Classifications
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- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
Abstract
The invention discloses a kind of methods using two-dimentional black phosphorus material efficient degradation organic pollutant, it is using two-dimentional black phosphorus material as degradable material, it is added in the waste water containing organic pollutant, is stirred to react under light illumination, to complete the degradation to Organic Pollutants in Wastewater.Method operating process of the invention is simple, degradation speed is fast, good degrading effect, with high application prospect and commercial value.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to a kind of side of efficient degradation Organic Pollutants in Wastewater
Method.
Background technique
Organic pollutant polluted-water is to pay close attention to more problem in recent years.Currently, the drop of Organic Pollutants In Water
Also some researchs, including chemical treatment method, bioremediation and physical treatment method etc. of solution method, however biological treatment side
More or less there are certain disadvantages in method and physical treatment method, such as reaction rate is slow, degradation is not complete enough.More importantly this
A little methods are easy to be influenced by environment, and operating process is complicated.Therefore, seek that a kind of operating process is simple, degradation speed is fast, drop
The good organic pollutant degradation method of solution effect has great importance.
As the successful preparation of the two-dimensional material in recent years based on graphene and its superior chemical property are by people
Research report, black phosphorus not only possess direct band gap, also there is graphene etc. as a kind of novel two-dimensional semiconductor material
A variety of advantages that two-dimensional material does not have, cause scientific circles and pay attention to.It is a discovery of the invention that black phosphorus is at normal temperatures and pressures easily and oxygen
React with water, with the extension of exposure duration in air, black phosphorus can and the oxygen in air and water reaction, generate super oxygen
Free radical can promote the degradation process to organic pollutant.But so far, using black phosphorus as degradable material, for degrading
There is not been reported for the method for organic pollutant, therefore has very high researching value.
Summary of the invention
In order to overcome the deficiencies of the prior art, two-dimentional black phosphorus material efficient degradation organic contamination is utilized the invention discloses a kind of
A kind of method of object, it is intended to obtain that operating process is simple, degradation speed is fast, the organic pollutant degradation method of good degrading effect.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
The invention discloses a kind of methods using two-dimentional black phosphorus material efficient degradation organic pollutant, are black with two dimension
Phosphate material is added in the waste water containing organic pollutant as degradable material, is uniformly mixed, and then stirring is anti-under light illumination
It answers, that is, completes the degradation to Organic Pollutants in Wastewater.
Further, the two-dimentional black phosphorus material is obtained by carrying out ultrasound removing to black phosphorus powder.The ultrasound stripping
From optimum condition be 1000W, 19kHz ultrasound 2h.
Further, the two-dimentional black phosphorus material is nano-sheet, 0.6~1.0 μm long, 0.18~0.3 μm wide.
Further, it is 1~5mg/ that the two-dimentional black phosphorus material, which is added to the concentration in the waste water containing organic pollutant,
L。
Further, the organic pollutant is chlorophenol pollutant, polycyclic aromatic hydrocarbon and/or aldehyde pollutants.
Further, the speed of agitator being stirred to react is 100~150rpm, the reaction time is 10~50min.
Degradation principles of the invention are as follows: in the solution, when two-dimentional black phosphorus material is contacted with organic pollutant, by light
According to excitation, due to two-dimentional black phosphorus have direct band gap, occur electron transition, react with water body generation superoxide radical, thus
Organic pollutants in water body is degraded.
Compared with prior art, the beneficial effects of the present invention are embodied in:
1, operating process of the invention is simple.Black phosphorus is obtained two-dimentional black phosphorus material by ultrasound removing by the present invention, can be straight
Connect with waste water hybrid reaction, operating process is simple, with high application prospect and commercial value.
2, biodegrading process of the invention, by the superoxide radical degradable organic pollutant of generation, superoxide radical has
Strong oxidizing property, good degrading effect fast to the degradation speed of organic pollutant.
Detailed description of the invention
Fig. 1 is the TEM figure of two-dimentional black phosphorus material prepared by the embodiment of the present invention 1.
Fig. 2 is that degradable material, addition black phosphorus is not added to make in the embodiment of the present invention 1 as degradable material and the two-dimentional black phosphorus of addition
After reacting 20min for degradable material, to the degradation effect of 2,4-DCP.
Specific embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
Material employed in following embodiment and instrument are commercially available.
Embodiment 1
For waste water of the present embodiment to contain 2,4- Dichlorophenol (2,4-DCP), drop of the two-dimentional black phosphorus material of test to it
Solve effect, the specific steps are as follows:
It is set to be converted into two-dimentional black phosphorus material by 1000W, 19kHz ultrasound 2h black phosphorus material at room temperature.Fig. 1 is this
The TEM of two-dimentional black phosphorus material prepared by embodiment schemes.
Two-dimentional black phosphorus material is added to the useless of the 5mL Dichlorophenol of 2,4- containing 2.0mg/L (2,4-DCP) with the concentration of 2mg/L
In water, it is uniformly mixed, then under natural lighting, 20min is stirred to react with the revolving speed of 120rpm by magnetic stirring apparatus, then
Two-dimentional black phosphorus material is tested to the degradation amount of 2,4-DCP.Simultaneously not add degradable material and black phosphorus raw material is added as degradation material
The identical test of material, compares.As a result as shown in Figure 2.The calculation method of degradation rate is in figure: (remaining after initial concentration-degradation
Remaining concentration)/initial concentration
As shown in Figure 2, in the present embodiment, two-dimentional black phosphorus material is added, 2,4-DCP degradation rate can achieve 99.8%,
Degradation effect is significant.And common black phosphorus raw material is added, degradation rate is only 61.6%.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It is noted that for the art
Technical staff for, improvements and modifications without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (7)
1. a kind of method using two-dimentional black phosphorus material efficient degradation organic pollutant, it is characterised in that: be with two-dimentional black phosphorus material
Material is used as degradable material, is added in the waste water containing organic pollutant, is uniformly mixed, is then stirred to react under light illumination, i.e.,
Complete the degradation to Organic Pollutants in Wastewater.
2. the method according to claim 1 using two-dimentional black phosphorus material efficient degradation organic pollutant, it is characterised in that:
The two dimension black phosphorus material is obtained by carrying out ultrasound removing to black phosphorus powder.
3. the method according to claim 2 using two-dimentional black phosphorus material efficient degradation organic pollutant, it is characterised in that:
The condition of the ultrasound removing is 1000W, 19kHz ultrasound 2h.
4. the method according to claim 1 or 2 using two-dimentional black phosphorus material efficient degradation organic pollutant, feature exist
In: the two dimension black phosphorus material is nano-sheet, 0.6~1.0 μm long, 0.18~0.3 μm wide.
5. the method according to claim 1 or 2 using two-dimentional black phosphorus material efficient degradation organic pollutant, feature exist
In: it is 1~5mg/L that the two dimension black phosphorus material, which is added to the concentration in the waste water containing organic pollutant,.
6. the method for efficient degradation wastewater organic pollutant according to claim 1, it is characterised in that: the organic contamination
Object is chlorophenol pollutant, polycyclic aromatic hydrocarbon and/or aldehyde pollutants.
7. the method for efficient degradation wastewater organic pollutant according to claim 1, it is characterised in that: described to be stirred to react
Speed of agitator be 100~150rpm, the reaction time is 10~50min.
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| CN201811422412.9A CN109455790A (en) | 2018-11-27 | 2018-11-27 | A method of utilizing two-dimentional black phosphorus material efficient degradation organic pollutant |
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| CN201811422412.9A CN109455790A (en) | 2018-11-27 | 2018-11-27 | A method of utilizing two-dimentional black phosphorus material efficient degradation organic pollutant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110040813A (en) * | 2019-04-23 | 2019-07-23 | 中国科学院沈阳应用生态研究所 | A method of polluted-water is handled using two-dimensional layer black phosphorus |
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