▎ 摘　　要

NOVELTY - Manufacturing fiber-loaded catalyst in microfluidic one-step method comprises e.g. (i) adding three-dimensional chitosan sol to graphene oxide solution slowly, ultrasonically stirring and evaporating solvent to obtain a carrier sol; (ii) mixing nickel nitrate-loaded solid super acid powder with bronsted acidic ionic liquid to obtain a suspension; and (iii) using coaxial microfluidic channel network as a device, loading carrier solution into the innermost layer in syringe and introducing loading solution into the outermost layer in syringe and adding reducing agent to middle layer syringe. USE - The fiber-loaded catalyst is useful for preparing p-aminophenol (claimed). DETAILED DESCRIPTION - Manufacturing fiber-loaded catalyst in microfluidic one-step method comprises (i) adding three-dimensional chitosan sol to graphene oxide solution slowly, ultrasonically stirring and evaporating solvent to obtain a carrier sol; (ii) mixing nickel nitrate-loaded solid super acid powder with bronsted acidic ionic liquid to obtain a suspension; and (iii) using coaxial microfluidic channel network as a device, loading carrier solution into the innermost layer in syringe and introducing loading solution into the outermost layer in syringe, adding reducing agent to middle layer syringe and controlling flow rate of the solution by a numerically-controlled syringe pump so the carrier sol forms stable thick in the channel, mixing three, reducing and curing by a heating device and drying collected fibers. An INDEPENDENT CLAIM is also included for preparing p-aminophenol, comprising (i) preparing fiber-loaded catalyst using above mentioned method; and (ii) adding loaded fiber-catalyst and nitrobenzene to autoclave, heating and hydrogenating and stirred until reaction is complete and pouring reaction solution out and filtering catalyst.