Organic-metal framework catalyst for catalytic degradation of antibiotics and preparation method of organic-metal framework catalyst
A metal skeleton, catalytic degradation technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve low-concentration wastewater treatment difficulties, secondary pollution, reaction Slow and other problems, to achieve the effect of effective and rapid degradation, high reuse rate and low cost
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Embodiment 1
[0023] A method for preparing an organic-metal framework catalyst for catalytic degradation of antibiotics, comprising the steps of:
[0024] (1) Mix the ethylene glycol solution of copper chloride dihydrate and the N,N-dimethylformamide solution of terephthalic acid, stir for 1 hour, crystallize, and centrifuge to obtain the precipitate produced by the reaction;
[0025] (2) Washing and drying the precipitate to obtain the organo-metal framework catalyst.
[0026] In the step (1), the molar ratio of copper chloride dihydrate, terephthalic acid and N,N-dimethylformamide is 1:0.8:150.
[0027] In the step (1), the volume ratio of ethylene glycol to N,N-dimethylformamide is 1:1.2.
[0028] The crystallization in the step (1) includes the first stage of crystallization and the second stage of crystallization successively. The first stage of crystallization: the temperature is 85°C, and the crystallization time is 5h; the second stage of crystallization: the temperature is 160°C...
Embodiment 2
[0032] A method for preparing an organic-metal framework catalyst for catalytic degradation of antibiotics, comprising the steps of:
[0033] (1) Mix the ethylene glycol solution of copper chloride dihydrate and the N,N-dimethylformamide solution of terephthalic acid, stir for 1.5 hours, crystallize, and centrifuge to obtain the precipitate produced by the reaction;
[0034] (2) Washing and drying the precipitate to obtain the organo-metal framework catalyst.
[0035] In the step (1), the molar ratio of copper chloride dihydrate, terephthalic acid and N,N-dimethylformamide is 1:0.85:200.
[0036] In the step (1), the volume ratio of ethylene glycol to N,N-dimethylformamide is 1:1.35.
[0037] The crystallization in the step (1) includes the first stage of crystallization and the second stage of crystallization successively. The first stage of crystallization: the temperature is 95°C, and the crystallization time is 6.5h; the second stage of crystallization: the temperature T...
Embodiment 3
[0041] A method for preparing an organic-metal framework catalyst for catalytic degradation of antibiotics, comprising the steps of:
[0042] (1) Mix the ethylene glycol solution of copper chloride dihydrate and the N,N-dimethylformamide solution of terephthalic acid, stir for 1.5 hours, crystallize, and centrifuge to obtain the precipitate produced by the reaction;
[0043] (2) Washing and drying the precipitate to obtain the organo-metal framework catalyst.
[0044] In the step (1), the molar ratio of copper chloride dihydrate, terephthalic acid and N,N-dimethylformamide is 1:0.9:250.
[0045] In the step (1), the volume ratio of ethylene glycol to N,N-dimethylformamide is 1:1.5.
[0046] The crystallization in the step (1) includes the first stage of crystallization and the second stage of crystallization successively, the first stage of crystallization: the temperature is 105°C, and the crystallization time is 8h; the second stage of crystallization: the temperature is 1...
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