▎ 摘　　要

Nitroarene is a kind of environmental xenobiotics that is extremely difficult to degrade, and its selective catalytic hydrogenation is also extremely important for industries such as dyes and pharmaceuticals.The most widely used method for catalytic degradation of nitrophenol is the catalytic hydrogenation of p-nitrophenol, which has simple process flow, high quality, low pollution and good development prospects. Traditional nitrophenol catalysts produce many harmful substances and environmental pollution during the preparation process, and require a lot of production costs. Therefore, there is an urgent need to develop a new type of catalyst that is environmentally friendly, recyclable, and has high-efficiency catalytic performance.In this article, we took the catalytic p-nitrophenol as an example to synthesize a new type of green, recyclable, highly efficient catalytic and stable flexible gold nanorod/graphene oxide fiber. It is used as a catalyst to reduce 4-nitrophenol with NaBH4 as a reducing agent to produce 4aminophenol. The catalyst uses gold nanorods as the active center and graphene oxide as the carrier. Various analysis techniques were used to characterize all materials, and it was found that the inner/outer surfaces of graphene oxide fibers were homogeneously loaded with gold nanorods. The catalytic system has high activity and selectivity in reducing 4-nitrophenol. Due to the sealing effect of the graphene carrier and the flexibility of the catalytic material fiber, the supporting surface of the catalytic material is safer, with strong flexibility and stability. In addition, the flexible fiber also showed high operational stability during the catalytic cycle when 4-nitrophenol was reduced, and the conversion rate was only slightly decreased in the ten-cycle test, highlighting the application potential of the flexible fiber catalyst.