CN105032489A - Method for preparing CuMOFs catalyst for degrading organic dye - Google Patents
Method for preparing CuMOFs catalyst for degrading organic dye Download PDFInfo
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- CN105032489A CN105032489A CN201510354928.4A CN201510354928A CN105032489A CN 105032489 A CN105032489 A CN 105032489A CN 201510354928 A CN201510354928 A CN 201510354928A CN 105032489 A CN105032489 A CN 105032489A
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- organic dye
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- bpmbd
- chdc
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Abstract
The invention discloses a method for preparing a CuMOFs (Cu(bpmbd)(CHDC)) catalyst for degrading organic dye. The method comprises the following steps: at room temperature, dissolving 0.6 mmol of CHDC (1,4-Cyclohexane dicarboxylic acid) into 20 ml of water, adding 1.2 mmol of NaOH, after full dissolution, adding 0.6 mmol of Cu(NO3)2.3H2O, dissolving and filtering, dropwise adding the filtrate slowly to 20 ml of a methanol solution in which 0.6 mmol of bpmbd(N, N-bis-pyridin-4-ylmethylene-benzene-1,4-diamine) ligand is dissolved, stirring for reacting for 3 hours at room temperature, performing vacuum filtration and then drying to obtain black powder which is the required sample. The prepared sample can be used for catalytic degradation of organic dye. The method provided by the invention has the advantages that the preparation process is quite simple without energy consumption; the prepared sample is high in catalytic oxidation activity, can effectively degrade organic dye wastewater, provides a new technical direction for wastewater purification, and has a potential application value in dye wastewater treatment.
Description
Technical field
The present invention relates to a kind of preparation method of CuMOFs catalyst, be specially the preparation method of a kind of Cu (bpmbd) (CHDC) catalyst.
Background technology
MOFs has good adsorption separation performance and photo-catalysis capability, in recent years, research worker utilizes MOFs to be separated many kinds of substance in aqueous phase and to study, and MOFs demonstrates the incomparable good treatment effect of other materials, for wastewater purification technology provides new technique direction.Various containing N ligand species, configuration is various, such as imidazoles, pyridine, triazole, tetrazole and their derivative etc., and atom N has very strong coordination ability, and there is multiple coordination site, multidimensional complex that can be stable with metallic ion coordination composite structure containing N heterocyclic part; The carboxyl of carboxylic acids part has unique electronic structure and can form unique topological structure and interesting character.Therefore, when constructing metal-organic framework materials, coordination mode and the design feature of these two kinds of parts can be made full use of, obtain the MOFs material with special performance.
Summary of the invention
The object of this invention is to provide a kind of preparation method of CuMOFs catalyst, with provide a kind of can a kind of raw catelyst of catalyzing oxidizing degrading organic dyestuff.
Object of the present invention can be achieved through the following technical solutions.
A preparation method for CuMOFs catalyst, its step is as follows:
(1) weigh 0.6mmolCHDC to be dissolved in 20ml deionized water, add 1.2mmolNaOH, after fully reacting, add 0.6mmol mantoquita, fully filter after reaction.
(2) weigh bpmbd0.1718g to be dissolved in 20ml organic solvent.
(3) filtrate in step 1 be slowly added drop-wise in the solution of step 2, stirring reaction, vacuum filtration drying obtains required sample.
In step (1), mantoquita is Cu (NO
3)
23H
2o.
In step (2), organic solvent is methyl alcohol, ethanol, ether.
In step (3), the stirring reaction time is 1h, 2h, 3h.
Accompanying drawing explanation
Fig. 1 is the SEM figure that embodiment 1 obtains sample;
Fig. 2 is the infrared spectrum that embodiment 1 obtains sample;
Fig. 3 is the XRD figure that embodiment 1 obtains sample;
Fig. 4 is the BET figure that embodiment 1 obtains sample;
Fig. 5 is the degradation curve figure that embodiment 1 obtains sample catalysis dyestuff, (1) methyl orange; (2) orange; (3) methylene blue; (4) rose-red; (5) malachite green.
Detailed description of the invention
Below in conjunction with embodiment, explanation detailed, complete is further done to the present invention:
embodiment 1
Under room temperature condition, weigh 0.6mmolCHDC, be dissolved in 20ml water, add 1.2mmolNaOH in above-mentioned solution, dissolve completely, add 0.6mmolCu (NO
3)
23H
2o, filters after dissolving, filtrate is slowly added drop-wise to and has dissolved in the 20ml methanol solution of 0.6mmolbpmbd part, and stirred at ambient temperature reaction 3h, vacuum filtration drying obtains the sample of black powder.
embodiment 2
Repeat the operating procedure of embodiment 1, difference is that organic solvent is ethanol, result and embodiment 1 similar, but sample growing amount is less.
embodiment 3
Repeat the operating procedure of embodiment 1, difference is that organic solvent is ether, result and embodiment 1 similar, but the sample bolus generated is got together.
embodiment 4
Repeat the operating procedure of embodiment 1, difference is that the reaction time is 1h, result and embodiment 1 similar.
embodiment 5
Repeat the operating procedure of embodiment 1, difference is that the reaction time is 2h, result and embodiment 1 similar.
Fig. 1 is the SEM figure that embodiment 1 obtains sample, and sample is block, and its particle diameter is about 2-5 μm.Fig. 2 is the infrared spectrum that embodiment 1 obtains sample; Before and after catalysis, sample functional group does not change, 2924.81cm
-1place is C-H stretching vibration peak in CHDC phenyl ring skeleton, 2852.73cm
-1for C-H stretching vibration on organic ligand bpmbd phenyl ring and pyridine ring, 1633.03,1605 is carboxyl vibration peak, 1477-1213cm
-1for the skeletal vibration of phenyl ring and pyridine ring.Fig. 3 is the XRD figure that embodiment 1 obtains sample; XRD after catalysis before the XRD of sample and catalysis is almost just the same, and is all polycrystalline, and the crystal quality after catalysis is constant, recoverable.Fig. 4 is the BET figure that embodiment 1 obtains sample; The N of sample
2isothermal adsorption desorption curve is IV type, and be typical mesoporous material, in whole adsorption process, adsorbance increases gently.CuMOFs specific area is 57.03364m
2/ g, langmuir specific area is 96.318m
2/ g, BJH absorption average pore size is 8.418nm, BJH absorption accumulation total pore volume is 0.214cm
3/ g.Fig. 5 is the degradation curve figure that embodiment 1 obtains sample catalysis dyestuff, sample is to methyl orange and orangely have obvious degradation selectivity effect, under room temperature, 20mg sample 2h is respectively 58.71%, 33.26% to 125ml12ppm methyl orange, orange catalyzing oxidizing degrading rate.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a preparation method for degradating organic dye CuMOFs catalyst, is characterized in that:
Its step is as follows:
(1) weigh 0.6mmolCHDC to be dissolved in 20ml deionized water, add 1.2mmolNaOH, after fully reacting, add 0.6mmol mantoquita, fully filter after reaction.
(2) weigh bpmbd0.1718g to be dissolved in 20ml organic solvent.
(3) be slowly added drop-wise in the solution of step (2) by filtrate in step (1), stirring reaction, vacuum filtration drying obtains required sample.
2. the preparations and applicatio of a kind of Cu (bpmbd) (CHDC) catalyst according to claim 1, is characterized in that: in step (1), mantoquita is Cu (NO
3)
23H
2o.
3. the preparations and applicatio of a kind of Cu (bpmbd) (CHDC) catalyst according to claim 1, is characterized in that: in step (2), organic solvent is methyl alcohol, ethanol or ether.
4. the preparations and applicatio of a kind of Cu (bpmbd) (CHDC) catalyst according to claim 1, is characterized in that: in step (3), the stirring reaction time is 1h, 2h, 3h.
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Cited By (1)
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---|---|---|---|---|
US11767331B2 (en) | 2018-12-18 | 2023-09-26 | King Fahd University Of Petroleum And Minerals | Water stable zinc-based metal organic framework and method of use |
Citations (2)
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---|---|---|---|---|
US20100174047A1 (en) * | 2007-01-03 | 2010-07-08 | Insilicotech Co., Ltd. | Coordination Polymer Crystal With Porous Metal-Organic Frameworks and Preparation Method Thereof |
CN102784562A (en) * | 2012-08-09 | 2012-11-21 | 大连理工大学 | Method for preparing metal organic framework film |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100174047A1 (en) * | 2007-01-03 | 2010-07-08 | Insilicotech Co., Ltd. | Coordination Polymer Crystal With Porous Metal-Organic Frameworks and Preparation Method Thereof |
CN102784562A (en) * | 2012-08-09 | 2012-11-21 | 大连理工大学 | Method for preparing metal organic framework film |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11767331B2 (en) | 2018-12-18 | 2023-09-26 | King Fahd University Of Petroleum And Minerals | Water stable zinc-based metal organic framework and method of use |
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