The application discloses a method for preparing a mesoporous hollow nanoscale spherical structure adsorbent based on
emulsion and
micelle assembly and application of the adsorbent in
uranium extraction. The mesoporous hollow nanoscale spherical structure material is combined with an amidoxime group, and a green and efficient
uranium extraction adsorbent is prepared through a soft template method, self-
polymerization of
dopamine and amidoximation reaction. First, a
nonionic surfactant,
dopamine hydrochloride and an expanding agent 1,3,5-trimethylbenzene are used to form an
emulsion /
micelle system,
ammonia is added after stirring to initiate the oxidative self-
polymerization reaction of
dopamine, and a mesoporous hollow nanoscale spherical
catecholamine polymer MHS is prepared; then, a
functional monomer 2-amino-3,5-divinylbenzonitrile is grafted to the MHS under the
initiation of AIBN, and a cyan-amino bifunctionalized nanosphere CN-NH2-MHS is obtained; finally, the CN-NH2-MHS is chemically modified by
hydroxylamine hydrochloride, the cyan group is converted into an amidoxime AO group, and thus an amidoxime-amino synergistically functionalized high-stability mesoporous hollow nanoscale spherical structure adsorbent AO-NH2-MHS is prepared.