国家/地区 韩国（2） 美国（2）
IPC部 B（2） C（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC C01B031/02（2）
发明人
公开年 2012（2）
申请年 2011（2） 
专利权人 KOREA INST SCI TECHNOLOGY（2）

Graphene-iron oxide complex, useful in purification filter for removal of heavy metals, comprises graphene and needle-like iron oxide nanoparticles grown on surface of the graphene.

KOO H Y, CHOI W S, KIM J K, YEONG G H, SAN CHOI W, GYEONG K J

Ball-milled graphene nano-powder or ribbon purifying method, involves separating magnetic impurities during stirring suspension using magnet, where impurities are incorporated into graphene powder during ball-milling.

LEE J K, LEE K, LEE K I, GAP L J, IL L G