国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4）
IPC小类 B01D（4）
IPC C08J009/40（4）
发明人
公开年 2021（4）
申请年 2021（2） 
专利权人

Preparation method of graphene-based sponge used for treating sewage, involves performing ultrasonic treatment on the mixture of the graphene oxide dispersion and polyurethane sponge, heating.

WU J, LI C, SONG S, HUO S, LI K, WANG Y

Preparing oil-absorbing sponge modified based on graphene oxide, comprises cleaning polyurethane sponge with ethanol, mixing, soaking polyurethane sponge soaked in graphene oxide solution into modification solution and drying.

ZHANG J, LAN Q, LIN H, XU H

Preparing graphene nano-sheet porous photo-thermal conversion material useful in photo-thermal conversion e.g. seawater desalination comprises dispersing graphite powder in high molecular monomer and performing monomer polymerization.

CHEN J, WANG X, ZHANG T, WANG A, JI W, XU N

Preparing air purifying material comprises soaking hydrogel of bacterial cellulose in deionized water, compacting, electrostatic spinning, performing hydrothermal reaction, adding tetrabutyl titanate, and manganese chloride, and heating.

GAO Q