The invention discloses an amphiphilic Lindqvist-type polyacid TiO2 composite
nanofiber. A preparation method of the
nanofiber comprises the following steps: (1) under magnetic stirring, adding a cetyltrimethylammonium
bromide water solution into a Na2MoO6.2H2O water solution acidized by
hydrochloric acid, heating, filtering, washing with water and
diethyl ether, and
drying; (2) dissolving butyl
titanate and
polyvinylpyrrolidone into a mixed
solvent of N,N-
dimethylformamide, glacial
acetic acid and diacetone, and preparing a TiO2
nanofiber by virtue of an electrostatic
spinning method; and (3)dispersing the TiO2 nanofiber into
ethanol, and stirring, so as to obtain a solution A, dissolving surfactant-packaged Lindqvist-type polyacid into
ethanol, stirring to obtain a solution B, slowly dropwise adding the solution B into the solution A, stirring, washing with water and
ethanol, and carrying out
vacuum drying, so as to obtain the composite nanofiber. The preparation method is simple; the agglomeration problem of polyacid is effectively solved; the composite nanofiber is easy to separate and recycle; and an extraction
catalytic oxidation desulfurization
system is formed by hydrogenperoxide and
ionic liquid [Bmim]PF6, so that the
utilization rate of
hydrogen peroxide is increased, the desulfurization efficiency is high, and the
reusability is good.