▎ 摘　　要

NOVELTY - Preparing adsorbent involves dissolving 0.1 g of iron oxide (Fe3O4) and graphene oxide (GO) in the beaker with deionized water, dispersing, adding 0.5 g of SA powder, mechanically stirring, and mixing them uniformly to obtain the mixed solution. The 1 g iron chloride hexahydrate (FeCl3.6H2O) powder is weighed, then prepared into ferric ions (Fe3+) solution with volume concentration of 1%. The obtained alginic acid composite material is kept at room temperature. The redundant Fe3+is washed with deionized water and then put into a cold dryer for drying for 48 hours to obtain the Fe3O4/GO-SA-Fe3+. The Fe3O4/GO-SA-Fe3+material is added to form suspended substance in the solution, shaked for 28 hours so that the surface of the material reaches the adsorption balance for the pollutant in the water body. The absorbed solution is filtered and diluted, and then measured the residual (TC) and copper ions (Cu2+) concentration. USE - Method for preparing adsorbent for synchronously removing heavy metal and antibiotic. ADVANTAGE - The method is non-toxic, environment-friendly, through simple mixing, crosslinking to prepare Fe3O4/GO-SA-Fe3+functional material, aiming at different pollutants corresponding specific adsorption sites which is good for removing composite pollutant in water.