国家/地区 中国（3）
IPC部 C（3）
IPC大类 C02（3）
IPC小类 C02F（3） C08J（3） C08L（3）
C01B（2）
IPC C02F003/34（3）
发明人 JI G（3）
公开年 2021（3）
申请年 2021（3） 
专利权人 UNIV PEKING（3）

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