Preparation method of nano zero-valent iron loaded porous carbon composite material uranium adsorbent

[0022] Example 1:

[0023] The present invention provides a method of preparing a porous carbon material composite adsorbent uranium nano zero-valent iron load, the preparation process comprises the steps of:

[0024] S1: The styrene 12ml of deionized water and 320ml of mixed and heated to 70 ℃, argon as a protective gas atmosphere, the concentration of added 10ml 0.3M aqueous potassium persulfate solution, agitation speed 60rpm at 28h and maintained at 70 ℃, a white emulsion, the emulsion was filtered by centrifugation, washed three times with deionized water and ethanol, and dried at 30 deg.] C 4h, to give a white powdery polystyrene microspheres;

[0025] S2: 20g of polystyrene microspheres after drying was dispersed in 300ml of isopropanol solution to the stirring speed of 80rpm 3h added 2g 4g titanium tetraisopropoxide and stirring continued terephthalic acid, at the same speed 4h, at 70 deg.] C dried 48h, under nitrogen as protective gas in the atmosphere, with a tube furnace 2

[0027] Example 2:

[0028] The present invention provides a method of preparing a porous carbon material composite adsorbent uranium nano zero-valent iron load, the preparation process comprises the steps of:

[0029] S1: The styrene 12ml of deionized water and 320ml of mixed and heated to 70 ℃, argon as a protective gas atmosphere, the concentration of added 10ml 0.3M aqueous potassium persulfate solution, agitation speed 60rpm at 28h and maintained at 70 ℃, a white emulsion, the emulsion was filtered by centrifugation, washed three times with deionized water and ethanol, and dried at 30 deg.] C 4h, to give a white powdery polystyrene microspheres;

[0030] S2: 20g of polystyrene microspheres after drying was dispersed in 300ml of isopropanol solution to the stirring speed of 80rpm 3h added 2g 4g titanium tetraisopropoxide and stirring continued terephthalic acid, at the same speed 4h, at 70 deg.] C dried 48h, under nitrogen as protective gas in the atmosphere, with a tube furnace 2

[0032] Example 3:

[0033] The present invention provides a method of preparing a porous carbon material composite adsorbent uranium nano zero-valent iron load, the preparation process comprises the steps of:

[0034] S1: The styrene 12ml of deionized water and 320ml of mixed and heated to 70 ℃, argon as a protective gas atmosphere, the concentration of added 10ml 0.3M aqueous potassium persulfate solution, agitation speed 60rpm at 28h and maintained at 70 ℃, a white emulsion, the emulsion was filtered by centrifugation, washed three times with deionized water and ethanol, and dried at 30 deg.] C 4h, to give a white powdery polystyrene microspheres;

[0035] S2: 20g of polystyrene microspheres after drying was dispersed in 300ml of isopropanol solution to the stirring speed of 80rpm 3h added 2g 4g titanium tetraisopropoxide and stirring continued terephthalic acid, at the same speed 4h, at 70 deg.] C dried 48h, under nitrogen as protective gas in the atmosphere, with a tube furnace 2