Preparation method and application of porous metal organic framework material
An organic framework and porous metal technology, applied in the field of water treatment, can solve the problems of slow valence transition of transition metals, low utilization rate of hydrogen peroxide, low mass transfer efficiency, etc., to achieve enhanced catalytic reaction rate, rich pore structure, accelerated The effect of mass transfer
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Embodiment 1
[0048] This example provides a method for preparing a porous metal organic framework material, the steps are as follows:
[0049] (1) 1.08g FeCl 3 ·6H 2 O (concentration of ferric ion is 50mmol / L), 0.23g Co(NO 3 ) 2 ·6H 2 O (divalent cobalt ion concentration is 9.9mmol / L) and 0.66g terephthalic acid (H 2 BDC) was dissolved in 80mL N,N-dimethylformamide (DMF) to obtain a mixed solution, and the mixed solution was magnetically stirred at a speed of 500rpm for 3 hours until completely dissolved;
[0050] (2) Transfer the mixed solution obtained in step (1) to a 100mL polytetrafluoroethylene-lined autoclave, and put the autoclave into a blast constant temperature drying oven for reaction. The reaction temperature is 110°C, and the reaction time is 20 Hour, after the autoclave was cooled to room temperature, the reaction suspension was obtained;
[0051] (3) the reaction suspension obtained in step (2) is subjected to high-speed centrifugation, the rotating speed is 12000r / mi...
Embodiment 2
[0055] This example provides a method for preparing a porous metal organic framework material, the steps are as follows:
[0056] (1) 0.65g Cu(NO 3 ) 2 ·3H 2 O (divalent copper ion concentration is 89.7mmol / L), 0.2g MnSO 4 ·H 2 O (divalent manganese ion concentration is 40mmol / L) and 0.32g trimesic acid (H 3 BTC) was dissolved in 30mL ethanol solution to obtain a mixed solution, and the mixed solution was magnetically stirred at a speed of 500rpm for 3 hours until completely dissolved;
[0057] (2) The mixed solution obtained in step (1) is transferred to a 50mL polytetrafluoroethylene-lined autoclave, and the autoclave is put into a blast constant temperature drying oven to react, the reaction temperature is 140°C, and the reaction time is 15 Hour, after the autoclave was cooled to room temperature, the reaction suspension was obtained;
[0058] (3) the reaction suspension obtained in step (2) is subjected to high-speed centrifugation, the rotating speed is 10000r / min, ...
experiment example 1
[0095] This experimental example is used to verify the application effect of the porous metal organic framework material prepared in Example 1 in the treatment of organic wastewater. Taking organic wastewater containing persistent organic matter as the treatment object, there are four kinds of wastewater to be treated: organic wastewater containing 20mg / L methylene blue (MB), organic wastewater containing 20mg / L phenol, organic wastewater containing 20mg / L bisphenol A (BPA) Organic wastewater, organic wastewater containing 20mg / L ciprofloxacin (CIP).
[0096] The experiment was divided into eight groups, and the treatment methods of each group were as follows:
[0097] (1) Experimental group: Four kinds of organic wastewater were treated as follows:
[0098] Add the porous metal organic framework material prepared in Example 1 to the organic wastewater to be treated, the dosage is 0.2g / L, adjust the pH value of the wastewater to 5, and add the Hydrogen oxide, the dosage is 5...
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