Patent ID: 9387458
Filing Date: 2016-07-12
CPC Classification: B01J,C02F

Claim Text:
1. A method for regulating the structure and properties of a composite nanoabsorbent, consisting of the following steps: 1) providing nanoporous chloromethylated polystyrene-divinylbenzene beads; 2) mixing the nanoporous chloromethylated polystyrene-divinylbenzene beads, nitrobenzene and zinc chloride (ZnCl 3) naturally cooling off the mixture after heating the mixture and keeping the reaction temperature constant, and taking out the material so obtained and washing the material successively with ethanol and water until an effluent of the washed material turns neutral, then extracting the material with absolute ethanol for 5 hours; 4) drying the extracted material at 60° C. to obtain a resin (resin A) with various degrees of crosslinking; 5)choosing inorganic functional nanoparticles B selected from the group consisting of nanosized hydrated ferric oxides and hydrated manganese oxides; and using the resin A as a support, loading the inorganic functional nanoparticles B thereon by means of in situ precipitation between corresponding metallic ions of the inorganic functional nanoparticles B and a NaOH solution; the composite nanoabsorbent is therefore obtained.