摘要
In this work,we proposed a new U(Ⅵ)removal strategy combining adsorption and photocatalytic reduction by the PMo_(12)/UiO-66 heterojunctions.The PMo_(12)has been encapsulated in the cavities of Ui O-66 by a one-step hydrothermal method,and the PMo_(12)/UiO-66 exhibited high adsorption capacity and photocatalytic activity.The maximal theoretical sorption capacity of U(Ⅵ)on 15%PMo_(12)/UiO-66 reached225.36 mg/g and the photoreduction rate of 15%PMo_(12)/UiO-66 is about thirty times as much as UiO-66.Under the light irradiation,the photogenerated electrons rapidly transport from UiO-66 to PMo_(12),and the photo-generated electrons could efficiently reduce the pre-enriched U(Ⅵ)to U(IV).This work provides new insights into remediation of the radioactive environment.
基金
financially supported by the National Natural Science Foundation of China(Nos.21866004,21866003,22066003,22076022,22006004)
the Defense Industrial Technology Development Program(No.JCKY2019401C004)
the Open Fund of Jiangxi Province Key Laboratory of Synthetic Chemistry(No.JXSC202012)
the Open Fund of State Key Laboratory of Nuclear Resources and Environment(No.NRE1924)
the Graduate Innovation Fund of East China University of Technology(No.DHYC-202134)。
