▎ 摘　　要

NOVELTY - A titania-based graphene/lanthanum-ion carbon fiber is obtained by spinning a graphene/polyacrylonitrile/dimethylformamide mixed solution and lanthanum nitrate/glacial acetic acid/tetrabutyl titanate mixed solution, in volume ratio of 50:9. The concentration of graphene/polyacrylonitrile/dimethylformamide mixed solution is 0.0007-0.0049 g/mL. The concentration of polyacrylonitrile is 0.08 g/mL. The concentration of the lanthanum nitrate/glacial acetic acid/tetrabutyl titanate mixed solution is 0.0069 g/mL. The volume ratio of glacial acetic acid with respect to tetrabutyl titanate is 4:5. USE - Titania-based graphene/lanthanum-ion carbon fiber is used for forming antibacterial yarn for forming antibacterial fabric (all claimed). ADVANTAGE - The titania-based graphene/lanthanum-ion carbon fiber efficiently provides yarn with excellent antibacterial effect and high strength by simple method and simple equipment. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) antibacterial yarn, which is formed by spinning titania-based graphene/lanthanum-ion carbon fiber; and (2) antibacterial fabric, which is formed by weaving antibacterial yarn.