国家/地区 中国（4）
IPC部 C（4）
IPC大类 C02（4）
IPC小类 C02F（4） C08J（4） C08L（4）
C01B（2）
IPC C08L075/04（4）
发明人 WANG Y（4）
公开年 2021（4）
申请年 2021（4） 
专利权人 UNIV PEKING（3）

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 multi-layer graphene oxide modified microbial carrier useful in biological reaction sewage treatment system comprises, e.g. irradiating first post-treatment polyurethane carrier with an ultraviolet lamp, immersing, and dispersing.

JI G, WANG Y

Improving surface biocompatibility of waste polyurethane carrier comprises e.g. preparing two intermediate products, carboxylated graphene and carboxylated graphene dispersion, soaking in second intermediate product and reacting.

JI G, WANG Y

Preparing ethylenediamine grafted graphene oxide modified polyurethane carrier useful e.g. in sewage treatment, comprises carrying out first post-treatment of polyurethane carrier, oxidizing graphite powder and performing second reaction.

JI G, WANG Y