国家/地区 韩国（3） 美国（3） 欧洲专利局（EPO）（2）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 C01B（3）
IPC C01B032/192（3）
发明人 LEE S（3）
公开年
申请年
专利权人

Photocatalyst for use as denitrification catalyst for removing nitrate ion, and processing water, comprises titanium dioxide particle comprising titanium dioxide, carbon material located on all or portion of surface of titanium dioxide particle and comprising graphene, reduced graphene oxide.

LEE S, CHOI W, CHOIWEONYONG, BI L S

Graphene membrane film used in system for purifying solvent, comprises several plate-shaped laminated graphene flakes containing physical bond or chemical bond for connecting pair of layers, and has preset thickness and oxygen content.

LEE S H, KIM S J, SEO D K, KIM Y H, GEONHUI L, LEE S, KIM S

Making graphene powder useful in carbon-based electrical devices involves preparing graphene solution in which graphene particles are dispersed in a solvent; aggregating the particles; separating aggregated particles from solvent and drying.

LEE S, LEE D, SEO B, BYUN N