Preparation method of ferrocene-modified Fenton catalyst for iron-based metal-organic framework material
A technology of iron-based metals and organic frameworks, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems that are rarely used in advanced oxidation processes, etc. Achieve low cost, mild reaction conditions, and environmental friendliness
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Embodiment 1
[0021] (1) Preparation of MIL-101(Fe)-Fc catalyst
[0022] NH 2 -Preparation of MIL-101(Fe): 0.675 g FeCl 3 ·6H 2 O and 0.224 g of 2-amino-terephthalic acid were dissolved in 15 mL of N, N-dimethylformamide (DMF), stirred at room temperature for 10 min, and then encapsulated in polytetrafluoroethylene In a lined reactor, react at 110 °C for 24 h, cool to room temperature; centrifuge, then heat-treat in 50 ml ethanol at 60 °C for 3 h, perform a total of two heat treatments to remove the adsorbed impurities, and finally in Dry in vacuum at 60 °C for 24 h.
[0023] Preparation of MIL-101(Fe)-Fc catalyst: 0.1 g NH 2 - Disperse MIL-101(Fe) in 15 mL ethanol, stir magnetically for 5 min; then add 0.0214 g ferrocene formaldehyde, then heat and reflux at 80 °C for 2 h; centrifuge, wash with ethanol and deionized water three times each , and finally dried under vacuum at 60 °C for 24 h.
[0024] (2) Catalyst performance evaluation
Embodiment 2
[0028] (1) Preparation of MIL-53(Fe)-Fc catalyst
[0029] NH 2 - Preparation of MIL-53(Fe): 0.543 g of 2-aminoterephthalic acid was ultrasonically dispersed in 15 mL of DMF, and then 0.8109 g of FeCl was added 3 ·6H 2O, magnetically stirred for 15 min; reacted in a Teflon-lined autoclave at 150 °C for 5 h; cooled to room temperature, centrifuged, washed with water and ethanol, and finally vacuum-dried at 60 °C for 24 h to obtain NH 2 -MIL-53(Fe).
[0030] Preparation of MIL-53(Fe)-Fc catalyst: 0.1 g NH 2 -MIL-53(Fe) was dispersed in 15 mL of ethanol, stirred magnetically for 5 min; then added 0.0214 g of ferrocene formaldehyde, and then heated to reflux at 80 °C for 2 h; centrifuged, washed three times with ethanol and deionized water , and finally dried under vacuum at 60 °C for 24 h.
[0031] (2) Catalyst performance evaluation
[0032] The organic pollutant bisphenol A was selected as the probe molecule to study the performance of the prepared catalyst. Add 5 mg of c...
Embodiment 3
[0035] (1) Preparation of MIL-88B(Fe)-Fc catalyst
[0036] NH 2 -Preparation of MIL-88B(Fe): 0.379 g of 2-aminoterephthalic acid was ultrasonically dispersed in 15 mL of DMF and 1.2 mL of 2 mol / L NaOH mixed solution, and then 1.212 g of Fe(NO 3 ) 3 9H 2 O, magnetically stirred for 15 min; reacted in a polytetrafluoroethylene-lined autoclave at 100 °C for 12 h; cooled to room temperature, centrifuged, washed with water and ethanol, and finally vacuum-dried at 60 °C for 24 h.
[0037] Preparation of MIL-88B(Fe)-Fc catalyst: 0.1 g NH 2 -MIL-88B(Fe) was dispersed in 15 mL ethanol, stirred magnetically for 5 min; then added 0.0214 g ferrocene formaldehyde, and then heated to reflux at 80 °C for 2 h; centrifuged, washed three times with ethanol and deionized water , and finally dried under vacuum at 60 °C for 24 h.
[0038] (2) Catalyst performance evaluation
[0039] The organic pollutant bisphenol A was selected as the probe molecule to study the performance of the prepared ...
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