Purification of xylenol orange dye wastewater by dissolving enzyme amyloid fibers
this study successfully employed the hydrochloric acid guanidine denaturation method to prepare nano-sized starch-like fibers and extensively investigated their adsorption characteristics in treating wastewater containing typical industrial dyes such as Xylenol Orange.The experimental results revealed that the starch-like fibers had dimensions of approximately 50~70 nm in length and 20 nm in diameter.Under the influence of solution pH,the fibers exhibited a rapid adsorption kinetic profile with an optimum pH range of 3~4.The adsorption equilibrium process was achieved within a short duration of 20 minutes.Isothermal adsorption studies demonstrated exceptional adsorption performance of the fibers towards Xylenol Orange,with a maximum adsorption capacity reaching 783 mg/g.This research provides a novel and efficient method for utilizing starch-like fibers in the treatment of dye wastewater,showcasing potential industrial applications for this approach.