The invention discloses a method capable of photocatalytically degrading dyes to prepare
copper-loaded nano
titanium dioxide
chitosan composite microspheres in a microfluidic mode. The method comprises the steps: adding a tetrabutyl
titanate solution into an acid solution, mixing to form nano
titanium dioxide gel, utilizing an
organic solvent to mixing the nano
titanium dioxide gel with amine terminated hyperbranched
polymer to obtain mixed liquor, then adding a
copper ion solution into the mixed liquor,
drying to obtain
copper-loaded nano
titanium dioxide powder, adding the copper-loaded nanotitanium dioxide
powder and
chitosan into the acid solution to be mixed to obtain a dispersion phase, mixing
sorbitan fatty acid ester with a
hydrocarbon mixture to obtain a continuous phase, mixingthe dispersion phase with the continuous phase in a microfluidic mode and
drying to obtain the copper-loaded nano
titanium dioxide chitosan composite microspheres. According to the method disclosed bythe invention, the composite microspheres are prepared in the microfluidic mode, so that a material
utilization rate is high; the microspheres have large self catalyzing surface areas and high catalytic activity, can effectively reduce dye concentration, reduce toxic components in dye
wastewater and protect environment and
water resources.