Nano-TiO

2

catalytic materials based on amidoxime fiber were prepared by coordination-hydrolysis method in room temperature. The morphology

crystal structure and surface composition were determined by SEM

XRD and EDS.The experiment results showed that TiO

2

were amorphous

nano-particles exist on the surface of AOCF. The results of photodegrading methylene blue

methyl orange and reactive red which concentration was 50mL 25mg/L showed the rate of photodegradation was 100% in 90min with 1.000g catalyst; The catalyst can be reused for 7 times while the degradation rate was still above 80%.Catalytic degradation reactions of the three kinds of solution are first-level dynamics. Nano-TiO

2

/AOCF is a new and efficient photocatalyst owing to its good catalytic activity in degradation of dye solution.