▎ 摘　　要

NOVELTY - Preparation of visible light-responsive photocatalytic material comprises introducing graphene oxide into a carbon-doped graphitic carbon nitride material for modification. USE - The method is used for preparing visible light-responsive photocatalytic material for treating slightly polluted water and photocatalytic degradation of organic matter and ammonia nitrogen in slightly polluted water (all claimed). ADVANTAGE - The photocatalytic material has improved recovery and reuse ability and is conducive to water environment remediation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for: (1) preparation of the glass fiber felt loaded graphene oxide modified carbon-doped graphitic carbon nitride material comprising modifying graphene oxide modified carbon-doped graphitic carbon nitride on glass fiber felt with photocatalytic material; and (2) treatment of slightly polluted water comprising adding visible light-responsive photocatalytic material or glass fiber felt loaded graphene oxide modified carbon-doped graphitic carbon nitride to slightly polluted water micro-polluted water body, stirring, turning on circulating water pump, reacting at 25 degrees C, and stirring for 20-30 minutes, performing light irradiation under simulated sunlight for 24-72 hours.