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

被引：6
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
相关论文
共 54 条
  • [1] PHOTODEPOSITION OF URANIUM-OXIDES ONTO TIO2 FROM AQUEOUS URANYL SOLUTIONS
    AMADELLI, R
    MALDOTTI, A
    SOSTERO, S
    CARASSITI, V
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (19): : 3267 - 3273
  • [2] Enhancing photovoltages at p-type semiconductors through a redox-active metal-organic framework surface coating
    Beiler, Anna M.
    McCarthy, Brian D.
    Johnson, Ben A.
    Ott, Sascha
    [J]. NATURE COMMUNICATIONS, 2020, 11 (01)
  • [3] ZERO-VALENT IRON FOR THE IN-SITU REMEDIATION OF SELECTED METALS IN GROUNDWATER
    CANTRELL, KJ
    KAPLAN, DI
    WIETSMA, TW
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 1995, 42 (02) : 201 - 212
  • [4] N-compound reduction and actinide immobilisation in surficial fluids by Fe(II):: the surface Fe(III)OFe(II)OH° species, as major reductant
    Charlet, L
    Silvester, E
    Liger, E
    [J]. CHEMICAL GEOLOGY, 1998, 151 (1-4) : 85 - 93
  • [5] Interaction mechanism between different facet TiO2 and U(VI): Experimental and density-functional theory investigation
    Chen, Ke
    Chen, Changlun
    Ren, Xuemei
    Alsaedi, Ahmed
    Hayat, Tasawar
    [J]. CHEMICAL ENGINEERING JOURNAL, 2019, 359 : 944 - 954
  • [6] Ternary P25-graphene-Fe3O4 nanocomposite as a magnetically recyclable hybrid for photodegradation of dyes
    Cheng, Lingli
    Zhang, Shaofeng
    Wang, Yujia
    Ding, Guoji
    Jiao, Zheng
    [J]. MATERIALS RESEARCH BULLETIN, 2016, 73 : 77 - 83
  • [7] Few-Layer MoS2 Nanodomains Decorating TiO2 Nanoparticles: A Case Study for the Photodegradation of Carbamazepine
    Cravanzola, Sara
    Sarro, Marco
    Cesano, Federico
    Calza, Paola
    Scarano, Domenica
    [J]. NANOMATERIALS, 2018, 8 (04):
  • [8] Dong ZM, 2021, ENVIRON SCI-NANO, V8, P2372, DOI [10.1039/d1en00217a, 10.1039/D1EN00217A]
  • [9] Construction of oxidized millimeter-sized hierarchically porous carbon spheres for U(VI) adsorption
    Dong, Zhimin
    Zhang, Zhibin
    Zhou, Runze
    Dong, Yayu
    Dai, Ying
    Cao, Xiaohong
    Wang, Youqun
    Liu, Yunhai
    [J]. CHEMICAL ENGINEERING JOURNAL, 2020, 386
  • [10] Fabrication of g-C3N4-based conjugated copolymers for efficient photocatalytic reduction of U(VI)
    Gong, Junyuan
    Xie, Zongbo
    Wang, Bo
    Li, Ziqiang
    Zhu, Yean
    Xue, Jinming
    Le, Zhanggao
    [J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2021, 9 (01):
123456