Fabrication of MoS2@TiO2 hollow-sphere heterostructures with enhanced visible light photocatalytic reduction of U(VI)

被引：7
作者：
Rao, Gengwei [1 ,2 ]
Liu, Xiaodong [1 ,2 ]
Liu, Pinghui [1 ,2 ]
机构：
[1] East China Univ Technol, Sch Geosci, Nanchang 330013, Jiangxi, Peoples R China
[2] East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Jiangxi, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2022年 / 331卷 / 01期
关键词：
MoS2@THS; Visible light; U(VI); Photoreduction; AQUEOUS-SOLUTION; TIO2; URANIUM; REMOVAL; IMMOBILIZATION; HETEROJUNCTION; MECHANISM; ELECTRODE; GRAPHENE; SORPTION;
D O I：
10.1007/s10967-021-08091-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The MoS2@TiO2 hollow sphere heterostructures (MoS2@THS) were synthesized and used for photocatalytic reduction of U(VI) from wastewater under visible light. The optimum MoS2@THS-12 shows the highest photocatalytic reduction rate (irradiated for 80 min) with excellent recyclability and stability, which is approximately 4.1 times as much as the pure MoS2. The improved photocatalytic activity of MoS2@THS-12 is mainly due to the II-types heterojunction formed between MoS2 and THS. Meanwhile, the photogenerated electrons and superoxide radical are important active species in the photoreduction U(VI) process. The results provide an effective strategy for uranium resource utilization and pollution abatement.
引用
收藏
页码：263 / 273
页数：11
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