国家/地区 中国（2）
IPC部 C（2）
IPC大类
IPC小类
IPC
发明人 LI K（2）
公开年 2014（2）
申请年
专利权人

Composite hydrogel, useful for adsorption of heavy metal ions in industrial wastewater, comprises polyethylene alcohol, chitosan, modified graphene oxide, and sodium alginate, where the modified graphite oxide is ferroferric oxide.

MA P, CHEN M, JIN J, LI K, HUANG Y, DONG W, LI L, FU M, HU Y

Preparation of graphene oxide involves mixing natural flake graphite, potassium persulfate, phosphorus pentoxide and concentrated sulfuric acid, filtering, vacuum drying, centrifuging, carrying out ultrasonic dispersion and spray-drying.

DONG J, LIU J, XU Y, AN R, LI K, ZHU D