国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4） C02（3）
IPC小类 B01J（4）
IPC B01J020/30（3） C02F001/28（3） B01J020/26（2）
B01J020/28（2） C02F101/20（2）
发明人 NIU Q（4）
公开年 2018（2）
申请年 2018（2） 
专利权人 UNIV HENAN S.（3）

Preparing metal-free catalyst comprises mixing the carbon source and nitrogen source and ball milling to obtain the catalyst precursor, roasting the obtained catalyst precursor, cooling to obtain the non-metal catalyst.

ZHAO C, YANG J, NIU Q, DAI Y

Preparing graphene-based double-network polyethylenimine-graphene oxide/sodium alginate composite material useful for dye adsorption, comprises e.g. preparing composite gel, immersing in calcium (II) solution, filtering and freeze drying.

LIU H, CHENG Y, LIU C, ZHANG Z, ZHANG C, ZHANG J, NIU Q

Preparing polyethylenimine-modified graphene oxide/carboxymethyl cellulose/polyvinyl alcohol (PEI-mGO/CMC/PVA) composite material involves using PEI-mGO, CMC and PVA as precursor, dispersing and dropping PEI-mGO in mixed solution.

LIU H, WANG X, GAO X, LIU C, YANG H, LI F, NIU Q

Preparing three dimensional graphene composite material for adsorbing heavy metal ions, involves performing oxidation of graphite powder using potassium permanganate and treating product with polyethyleneimine.

DU J, LIU H, NIU Q, ZHANG J, LIU Z, CHENG Y, ZHANG S