CN105891135A - Method for visually displaying, quantitatively measuring and removing micro methylene blue in aqueous solution by ibuprofen - Google Patents
Method for visually displaying, quantitatively measuring and removing micro methylene blue in aqueous solution by ibuprofen Download PDFInfo
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- CN105891135A CN105891135A CN201610502530.5A CN201610502530A CN105891135A CN 105891135 A CN105891135 A CN 105891135A CN 201610502530 A CN201610502530 A CN 201610502530A CN 105891135 A CN105891135 A CN 105891135A
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- methylene blue
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
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Abstract
The invention discloses a method for visually displaying, quantitatively measuring and removing micro methylene blue in an aqueous solution by ibuprofen, and belongs to the technical field of water treatment. The method comprises the following steps: adding ibuprofen into the aqueous solution containing micro methylene blue, raising the temperature of the solution to 90-100 DEG C, preserving the heat for 1-24 hours, and cooling along with a furnace; filtering under normal pressure after shaking a reaction solution, wherein the collected filtered liquor is the aqueous solution without micro methylene blue; and drying a filtered product to obtain blue ibuprofen particles adsorbed with the methylene blue, eluting the methylene blue in the blue ibuprofen particles into the solution, and quantitatively measuring the concentration of the methylene blue. According to the method, the process is simple, the adopted raw materials are cheap, and the large-scale use can be realized easily. The micro methylene blue can be enriched by the ibuprofen to form blue ibuprofen particles, so that the visual impression is strong; and the ibuprofen particles further can be recycled after the methylene blue is eluted.
Description
Technical field
A kind of utilize ibuprofen intuitively to show, quantitative determine and remove the method for trace methylene blue in aqueous solution, belong to
Water-treatment technology field.
Background technology
Methylene blue as dyestuff in printing, dye and the industry such as packaging is widely used, after dyeing and printing process, waste water is straight
Run in, i.e. form dyeing waste water.The minimizing technology of methylene blue in waste has the method such as absorption method and photocatalysis, wherein adsorbs
Method is conventional method, i.e. by the mechanism of action between adsorbent and methylene blue by the table of methylene blue adsorption number to adsorbent
Face, the kind of adsorbent has porous carbon, porous silica and mineral material etc., and polymer base adsorbent is the most growing.Warp
After crossing adsorbent, mainly by the absorbance of methylene blue, the concentration of Methylene Blue in Solution is measured in real time, from
The reduction situation of concentration can reflect the effect of process.Adsorbent is extremely difficult to 100% to the adsorption rate of methylene blue, typically
Till the blue disappearance of perusal aqueous solution, or visible spectrophotometer is used to measure the extinction of Methylene Blue in Solution
Degree is zero to judge.
And when the concentration of methylene blue is the least, aqueous solution no longer Show Color, namely in the range of visible ray
No longer absorbing light, now naked eyes cannot judge, even if from the point of view of the absorbance test result of visible ray, numerical value is the least,
Fall in the range of error of apparatus measures, but now solution there is also trace methylene blue, simply by perusal or often
The visible spectrophotometry of rule is not easy detection.After trace methylene blue being adsorbed by conventional adsorbent, methylene
Base is blue and active force strong between adsorbent makes methylene blue cannot elute from adsorbent, the quantity of methylene blue also without
Method carries out quantitative measurement.
Methylene blue is the most degradable under sunlight, and trace methylene blue there is also adverse influence to water body.
Under the effect of sunlight, methylene blue is excited to upper state after absorbing energy, and that releases during de excitation is sent out is unnecessary
Energy is absorbed by the oxygen molecule in water body, and oxygen molecule reacts and becomes active oxy group, including singlet oxygen molecular and
Living radicals etc., these active substance reactivities are very strong, will produce the microbial environment in water body irreversible broken
Bad effect.After in methylene blue entrance animal body, the metabolism time is the longest, and Long contact time is dynamic after the water body containing methylene blue
The healthy growth of thing will be affected.Therefore the processing method of trace methylene blue in aqueous solution, including intuitively showing, quantitatively
Measure and the research of minimizing technology is also required to carry out, but correlational study result report is considerably less.
Summary of the invention
It is an object of the invention to provide one to utilize ibuprofen intuitively to show, quantitative determine and remove trace Asia in aqueous solution
The method of methyl blue, will join in the aqueous solution containing trace methylene blue by ibuprofen, processes 1 ~ 24 hour through 90 ~ 100 C
Rear methylene blue is just enriched in ibuprofen oil droplet, and in furnace cooling rear solution, the methylene blue of trace is just removed, and
The existence of methylene blue can be intuitively shown, if blue ibuprofen oil droplet is made ibuprofen by the blueness of ibuprofen oil droplet
Microgranule is also put in neutrality or acidic aqueous solution, and methylene blue will discharge to aqueous solution, be measured by conventional spectrophotometric
Metering method may determine that the concentration of the Methylene Blue in Solution containing trace methylene blue.For achieving the above object, the present invention uses
Technical scheme steps as follows:
(1) adding ibuprofen in the aqueous solution containing trace methylene blue, the addition making ibuprofen is 4.44 gram per liter, by molten
Liquid is warming up to 90 ~ 100 C and is incubated furnace cooling after 1 ~ 24 hour；
(2) will shake 2 minutes with the speed of 200 rpms through the reaction solution that step (1) obtains, natural filtration, collected
Cross cleaner liquid be the aqueous solution removing eliminating minute methylene blue, i.e. obtain suction after filtration product being dried 12 hours under 40 C
Blue ibuprofen microgranule with methylene blue；
(3) putting into pH value after being weighed by the blue ibuprofen microgranule obtained through step (2) is to soak 1 in neutral or acid solution
After ~ 12 hours, use visible spectrophotometry to measure methylene blue concentration in the solution, and then determine step by calculating
(1) concentration of the trace methylene blue of aqueous solution in.
Wherein, in step (1), the aqueous solution of trace methylene blue refers to that the concentration of methylene blue is 2 ~ 8 × 10-6Gram per liter
Aqueous solution.For the aqueous solution containing trace methylene blue, naked eyes appear to be colourless, also too small very because of absorption values
Difficulty visible spectrophotometry is measured, but the aobvious blueness of ibuprofen microgranule prepared through step (2), directly perceived through naked eyes
Observe just can specify in solution and have the existence of methylene blue.The blue ibuprofen microgranule that step (3) prepares is put into pH value is
In the aqueous solution of neutrality or acid range, methylene blue will be gradually released in aqueous solution, can be by conventional visible ray
The concentration of metric measurement methylene blue, and then determine the dense of the trace methylene blue of aqueous solution in step (1) quantitatively
Degree.The clear liquid obtaining natural filtration in step (2) is processed by step (1) and (2) again, and the ibuprofen prepared is micro-
Grain no longer shows blueness, illustrates that the trace methylene blue in solution is the most all removed.
The beneficial effects of the present invention is:
1. the low in raw material price that this method technique is simple, use, it is easy to large-scale use；
2. the ibuprofen dissolubility in aqueous that this method uses is the lowest, water body will not be caused secondary pollution；
3. in aqueous solution, trace methylene blue is enriched with to ibuprofen microgranule after absorption, no longer contains methylene in aqueous solution
Indigo plant, the simultaneously aobvious blueness of ibuprofen microgranule, intuitive is strong；
4. the ibuprofen microgranule Methylene Blue obtained by this method discharges to neutral or the most acid aqueous solution, and ibuprofen is micro-
Grain can also be re-used for display directly perceived, quantitative determination and removal process, Jin Erke to the aqueous solution containing trace methylene blue
To realize the recycling of ibuprofen.
Detailed description of the invention
Embodiment 1
(1) in 90 milliliters of aqueous solutions containing trace methylene blue, add ibuprofen, make the addition of ibuprofen be 4.44 grams every
Rising, this solution is colourless by the naked eye, solution is warming up to 90 C and is incubated furnace cooling after 24 hours；
(2) will shake 2 minutes with the speed of 200 rpms through the reaction solution that step (1) obtains, natural filtration, collected
Cleaner liquid of crossing be and remove the aqueous solution of trace methylene blue in solution, after filtration product being dried 12 hours under 40 C i.e.
The blue ibuprofen microgranule of methylene blue must be adsorbed with；
(3) put into, after being weighed by the blue ibuprofen microgranule obtained through step (2), the phosphate-buffered that 5 ml of ph are 7.2 molten
Liquid soaks 12 hours, uses visible spectrophotometry to measure methylene blue absorbance in the solution, pass through methylene blue
Concentration in the phosphate buffered solution that pH value is 7.2-absorbance standard straight line determines the concentration of methylene blue, and then passes through
Calculating determines that in step (1), the concentration of the trace methylene blue of aqueous solution is 2 × 10-6Gram per liter.
It addition, the clear liquid obtaining natural filtration in step (2) is processed by step (1) and (2) again, prepare
Ibuprofen microgranule no longer show blueness, illustrate that the trace methylene blue in solution is the most all removed.
Embodiment 2
(1) adding 0.40 gram of ibuprofen in 90 milliliters of aqueous solutions containing trace methylene blue, this solution is nothing by the naked eye
Color, solution is warming up to 100 C and is incubated furnace cooling after 1 hour；
(2) will shake 2 minutes with the speed of 200 rpms through the reaction solution that step (1) obtains, natural filtration, collected
Cleaner liquid of crossing be and remove the aqueous solution of trace methylene blue in solution, after filtration product being dried 12 hours under 40 C i.e.
The blue ibuprofen microgranule of methylene blue must be adsorbed with；
(3) put into, after being weighed by the blue ibuprofen microgranule obtained through step (2), the hydrochloric acid buffer solution that 5 ml of ph are 1.0
After middle immersion 1 hour, use visible spectrophotometry to measure methylene blue absorbance in the solution, existed by methylene blue
PH value is the concentration that the concentration in the hydrochloric acid buffer solution of 1.0-absorbance standard straight line determines methylene blue, and then by calculating
Determine that in step (1), the concentration of the trace methylene blue of aqueous solution is 8 × 10-6Gram per liter.
It addition, the clear liquid obtaining natural filtration in step (2) is processed by step (1) and (2) again, prepare
Ibuprofen microgranule no longer show blueness, illustrate that the trace methylene blue in solution is the most all removed.
Claims (2)
1. utilize ibuprofen intuitively to show, quantitative determine and remove a method for trace methylene blue in aqueous solution, its feature
It is to comprise the following steps:
Step 1. adds ibuprofen in the aqueous solution containing trace methylene blue, and the addition making ibuprofen is 4.44 gram per liter,
Solution is warming up to 90 ~ 100 C and is incubated furnace cooling after 1 ~ 24 hour；
The reaction solution obtained through step 1 is shaken 2 minutes by step 2. with the speed of 200 rpms, and natural filtration is received
The cleaner liquid of crossing of collection is the aqueous solution removing eliminating minute methylene blue, after filtration product being dried 12 hours under 40 C and get final product
It is adsorbed with the blue ibuprofen microgranule of methylene blue；
Step 3. puts into pH value after being weighed by the blue ibuprofen microgranule prepared through step 2 be to soak in neutral or acid solution
After steeping 1 ~ 12 hour, use visible spectrophotometry to measure methylene blue concentration in the solution, and then determined by calculating
The methylene blue concentration of aqueous solution in step 1.
2. one as claimed in claim 1 utilizes ibuprofen intuitively to show, quantitative determines and remove trace methylene in aqueous solution
The method that base is blue, it is characterised in that: in step 1, the aqueous solution of trace methylene blue refers to that the concentration of methylene blue is 2 ~ 8 × 10-6
The aqueous solution of gram per liter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610502530.5A CN105891135B (en) | 2016-06-30 | 2016-06-30 | A method of micro methylene blue in aqueous solution is intuitively shown, quantitative determines and removed using brufen |
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| CN201610502530.5A CN105891135B (en) | 2016-06-30 | 2016-06-30 | A method of micro methylene blue in aqueous solution is intuitively shown, quantitative determines and removed using brufen |
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| CN105891135A true CN105891135A (en) | 2016-08-24 |
| CN105891135B CN105891135B (en) | 2018-09-28 |
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Citations (5)
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| CN101708845A (en) * | 2009-11-20 | 2010-05-19 | 中南林业科技大学 | Method for manufacturing active carbon by using rice hulls and stalks as main raw materials |
| CN102441003A (en) * | 2010-10-15 | 2012-05-09 | 天津瑞普生物技术股份有限公司 | Accurate measurement method for adsorption rate and desorption rate of montmorillonite |
| US20130168321A1 (en) * | 2012-01-03 | 2013-07-04 | The Penn State Research Foundation | Nitrogen-containing activated carbon material |
| CN104801286A (en) * | 2015-05-14 | 2015-07-29 | 安徽大学 | Graphene oxide hydroxypropyl cellulose composite hydrogel and preparation method and application thereof |
| CN104865323A (en) * | 2015-04-29 | 2015-08-26 | 昆明理工大学 | Method for determining hydrogen sulfide in blood and urine |
-
2016
- 2016-06-30 CN CN201610502530.5A patent/CN105891135B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708845A (en) * | 2009-11-20 | 2010-05-19 | 中南林业科技大学 | Method for manufacturing active carbon by using rice hulls and stalks as main raw materials |
| CN102441003A (en) * | 2010-10-15 | 2012-05-09 | 天津瑞普生物技术股份有限公司 | Accurate measurement method for adsorption rate and desorption rate of montmorillonite |
| US20130168321A1 (en) * | 2012-01-03 | 2013-07-04 | The Penn State Research Foundation | Nitrogen-containing activated carbon material |
| CN104865323A (en) * | 2015-04-29 | 2015-08-26 | 昆明理工大学 | Method for determining hydrogen sulfide in blood and urine |
| CN104801286A (en) * | 2015-05-14 | 2015-07-29 | 安徽大学 | Graphene oxide hydroxypropyl cellulose composite hydrogel and preparation method and application thereof |
Non-Patent Citations (6)
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| A. GHAUCH ET AL.: "Methylene blue discoloration by heated persulfate in aqueous solution", 《CHEMICAL ENGINEERING JOURNAL》 * |
| MAHMOODI, N. ET AL.: "Equilibrium, Kinetics, and Thermodynamics of Dye Removal using Alginate in Binary Systems.", 《J. CHEM. ENG. DATA》 * |
| SOUMITRA GHORAI ET AL.: "Enhanced Removal of Methylene Blue and Methyl Violet Dyes from Aqueous Solution Using a Nanocomposite of Hydrolyzed Polyacrylamide Grafted Xanthan Gum and Incorporated Nanosilica", 《ACS APPL. MATER. INTERFACES》 * |
| SYEDA S. HASSANA ET AL.: "Ultra-trace level electrochemical sensor for methylene blue dye based on nafion stabilized ibuprofen derived gold nanoparticles", 《SENSORS AND ACTUATORS B》 * |
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