国家/地区 中国（4）
IPC部 A（4）
IPC大类 A61（4） B01（4）
IPC小类 A61L（4）
IPC A61L002/08（4）
发明人
公开年 2021（3）
申请年 2021（3） 
专利权人

Nano fiber film air purifier filter screen has rotating shafts that are located at same vertical position and distance is same as length of pre-filtering screen.

YANG Y, DU L, LI X

Preparation of composite visible photocatalyst graphene quantum dot/graphite phase nitrogen carbide by mixing carbon nitride and graphene quantum dot solution, stirring, reacting, centrifuging to remove supernatant, washing and drying.

YU H, CUI Y, HUANG X, WANG T, JIA L, NIE Q

Diatom cloth with antibacterial, purifying and humidifying function comprises diatom material, activated carbon, graphene, catalyst, pore-forming agent and cloth.

HAN F, DU Z

Dustproof sterilizing mask, has multiple non-woven fabrics or gauze cloth layers coated with either graphene coating or nanometer titanium dioxide or nanometer titanium dioxide and nano graphene composite coating.

CHENG X, LI B, LIU T, WANG Y, XU C, ZHENG J