Process for preparing Fe-Sn modified active carbon fibre catalyst for microwave induced oxidation

Abstract

A method uses to preparate the MIOP hard tin modified activated carbon textile fiber catalyst, it involves one kind of preparing method of the catalyst.It is realized like this; A.Soaks the activated carbon textile fiber into the mix solution which includes Fe2+, the Sn2+, then joins the urea; B.Lays the above mixture under 50~90deg.C for 10~15hours, clear washes off the settling attaches onto the surface of the activated carbon textile fiber, dry it then get the catalyst forerunner body; C.Roastes it in the muffle furnace then colds it to the room temperature, obtains the modified activated carbon textile fiber catalyst.The method choose the activated carbon textile fiber as the substrate of the MIOP catalyst,by carries on the process chemistry modification MIOP to the activated carbon textile fiber surface, strengthens its absorbancy to the microwave, reduces the catalyst amount used and lengthens the age of catalyst.The invention effectively enhances the MIOP catalyst efficiency (approximately 5~10to double), lengthenes the MIOP catalyst service life (experimental repetitely use for above 10times, it removeing efficiency still may maintains above 80%) reduces the catalyst amount used (its amount used only is 1,/10of the pellet activated charcoal).

Description

Technical field: [0001] The invention relates to a preparation method of a catalyst, in particular to a preparation method of a catalyst used in MIOP. Background technique: [0002] Microwave-induced oxidation process (MIOP) is a new water treatment technology, which has a good application effect and broad application prospects for the treatment of refractory organic pollutants in water and wastewater. At present, the catalysts used in MIOP reported in the literature are mainly granular activated carbon, which can rapidly oxidize and treat refractory organic pollutants in water under microwave irradiation, but granular activated carbon has the disadvantages of low catalyst efficiency and low service life. At present, MIOP technology is still immature, and there are still many technical problems waiting to be solved in terms of improving the microwave-induced oxidation efficiency of catalysts and reducing operating costs. Activated carbon fiber is a commonly used catalyst ca...

AI Technical Summary

Problems solved by technology

At present, the catalysts used in MIOP reported in the literature are mainly granular activated carbon, which can quickly oxidize and treat refractory organic pollutants in water under microwave irradiation, but granular activated carbon has disadvantages such as

Images