a positively charged fe 3+ /fe 2+ Method for removing negatively charged organic pollutants in water by activating persulfate with MOFs
A technology for activating persulfate and organic pollutants, applied in water pollutants, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of less research on the removal of organic pollutants and limited scope of application, and achieve Improved activation efficiency, ease of operation, and strong adsorption capacity
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Embodiment 1
[0036] A positively charged Fe 3+ / Fe 2+ The method for MOFs activated persulfate to remove negatively charged organic pollutants in aqueous solution, the specific steps are as follows:
[0037] (1) Prepare 100 μmol / L orange G solution at room temperature, take 100 ml solution in a 250 ml reactor, add 0.05 g Fe-containing 3+ / Fe 2+ MOFs, stirred for 1 h;
[0038] (2) Add 0.1 g K to the reaction system 2 S 2 o 8 Continue stirring for 4 h;
[0039] (3) After the reaction is over, the purpose of solid-liquid separation is achieved after simple filtration, and the Fe-containing 3+ / Fe 2+ MOFs were dried at 60°C for later use.
[0040] With the stirred solution obtained in step (1) to the Fe-containing 3+ / Fe 2+ The adsorption capacity of MOFs (indicated by adsorption rate) was tested, and the final degradation rate was tested with the stirred solution obtained in step (2). The experimental results are shown in Table 2. The results in Table 2 show that different prop...
Embodiment 2
[0049] A positively charged Fe 3+ / Fe 2+ The method for MOFs activated persulfate to remove negatively charged organic pollutants in aqueous solution, the specific steps are as follows:
[0050] (1) Prepare a 100 μmol / L sodium dodecylbenzenesulfonate solution at room temperature, take 100 ml of the solution in a 250 ml reactor, and add 0.05 g of Fe-containing 3+ / Fe 2+ MOFs, stirred for 1 h;
[0051] (2) Add 0.1 g K to the reaction system 2 S 2 o 8 Continue stirring for 2 h;
[0052] (3) After the reaction is over, the purpose of solid-liquid separation is achieved after simple filtration, and the Fe-containing 3+ / Fe 2+ MOFs were dried at 60°C for later use.
[0053] With the stirred solution obtained in step (1) to the Fe-containing 3+ / Fe 2+ The adsorption capacity of MOFs (indicated by adsorption rate) was tested, and the final degradation rate was tested with the stirred solution obtained in step (2). The experimental results are shown in Table 3. The resul...
Embodiment 3
[0062] A positively charged Fe 3+ / Fe 2+ The method for MOFs activated persulfate to remove negatively charged organic pollutants in aqueous solution, the specific steps are as follows:
[0063] (1) Prepare a 100 μmol / L purine nucleotide solution at room temperature, take 100 ml of the solution in a 250 ml reactor, add 0.05 g of Fe-containing 3+ / Fe 2+ MOFs, stirred for 1 h;
[0064](2) Add 0.1 g K to the reaction system 2 S 2 o 8 Continue stirring for 4 h;
[0065] (3) After the reaction is over, the purpose of solid-liquid separation is achieved after simple filtration, and the Fe-containing 3+ / Fe 2+ MOFs were dried at 60°C for later use.
[0066] With the stirred solution obtained in step (1) to the Fe-containing 3+ / Fe 2+ The adsorption capacity of MOFs (indicated by adsorption rate) was tested, and the final degradation rate was tested with the stirred solution obtained in step (2). The experimental results are shown in Table 4. The results in Table 4 show...
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