▎ 摘　　要

NOVELTY - Modified graphene oxide with nano metal particles supported on activated charcoal in application in domestic filters is prepared by mixing 2.5 g phosphorus pentoxide, 5 g graphite, 18 ml of sulfuric acid and 2.5 g potassium persulfate, stirring for 5 hours under controlled temperature at 80 degrees C, vacuum filtering the mixture and washing to remove excess acid, and drying the compound in an oven at 60 degrees C for 12 hours to obtain pre-oxidized graphite. USE - Modified graphene oxide with nano metal particles supported on activated charcoal used for treatment of water for human consumption, and for inactivation of Escherichia coli. ADVANTAGE - The modified graphene oxide with nano metal particles has improved inactivation potential and the shelf life, and has ability to inactivate E.coli.