▎ 摘　　要

NOVELTY - Preparing silver/graphene oxide/titanium electrode involves processing matrix by polishing titanium plate to be smooth, using sodium hydroxide solution, hydrochloric acid and distilled water, boiling for 1-3 hours in oxalic acid solution, etching to concave and convex non-uniform surface to obtain titanium substrate, putting in absolute ethyl alcohol, weighing graphene oxide and silver nitrate, adding to de-ionized water to obtain solution, where weight ratio of graphene oxide and silver nitrate is (1:5)-(1:15) and weight ratio of graphene oxide and de-ionized water is (1:1000)-(1:10000) and using electrodeposition method to graphene oxide and silver electroplating in electrolyte to titanium substrate. USE - Method for preparing silver/graphene oxide/titanium electrode used in removal of nitrate in water (claimed). ADVANTAGE - The method has simple operation and low device requirement.