Among the numerous
nuclear wastes, radioactive iodine (I2) has become one
of the main pollutants due to its serious adverse
effects on the human thyroid gland. Therefore, the design and synthesis
of adsorbents for efficient elimination of radioactive I2 from nuclear waste is an attractive target. Herein, we developed
a novel silver nanoparticle (AgNP)-loaded metal–organic framework
(MOF) of UiO-66, which exhibits excellent I2 adsorption
performance due to the synergistic effect between UiO-66 MOFs and
AgNPs. The designed AgNPs@UiO-66 adsorbent possesses good porosity
and high Ag-loading ability, which assists the adsorbent to achieve
a high adsorption I2 capacity of 1260 mg/g.
The pseudo-second-order model and Langmuir model are considered to
be suitable for describing the I2 adsorption behavior over
AgNPs@UiO-66. Additionally, some important experimental parameters,
such as adsorption time, adsorbent concentration, secondary pollution,
and adsorption mechanism, have also been studied in detail. These
satisfactory results manifest that AgNPs@UiO-66 is a latent adsorbent
for I2 removal in nuclear waste management.