Enhancing the photocatalytic performance of g-C3N4 by using iron single-atom doping for the reduction of U(VI) in aqueous solutions

被引：21
作者：
Wei, Wei [1 ]
Luo, Jianqian [1 ]
Liu, Shujuan [1 ]
Zhou, Yueming [1 ]
Ma, Jianguo [1 ]
机构：
[1] East China Univ Technol, State Key Lab Nucl Resources & Environm, Nanchang 330013, Jiangxi, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2022年 / 312卷
基金：
中国国家自然科学基金;
关键词：
Graphitic carbon nitride; Iron single atom; Photocatalysis; Uranium; GRAPHITIC CARBON NITRIDE; VISIBLE-LIGHT; DOPED G-C3N4; TIO2; URANIUM(VI); NANOSHEETS; REMOVAL; ELIMINATION; CATALYSTS;
D O I：
10.1016/j.jssc.2022.123160
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Photocatalysis is regarded as a safe, efficient, and environmentally-friendly method for treating uranium containing waste water. In this work, novel Fe-doped graphitic carbon nitride (g-C3N4) photocatalysts (Fe-CN) were synthesized by using molten salts and reflux method. They were characterized by various techniques, including XPS, IR, SEM, UV-Vis, EIS, and PL. To evaluate the photocatalytic reduction of U(VI) under visible light irradiation, various influencing factors were systematically investigated. The results showed that all Fe-CN samples exhibited significantly greater photocatalytic activity than pristine g-C3N4. The optimum Fe-CN photo catalyst with an Fe:C3N4 molar ratio of 1: 10.6 (Fe-CN-3) had the highest photocatalytic performance with a photocatalytic reduction efficiency of U(VI) that reached 96% after 240 min irradiation. Fe-CN-3 presented good reusability, demonstrating its promising applications for treating radioactive contaminants.
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页数：9
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共 56 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] A facile sulfur-assisted method to synthesize porous alveolate Fe/g-C3N4 catalysts with ultra-small cluster and atomically dispersed Fe sites
    An, Sufeng
    Zhang, Guanghui
    Liu, Jiaqiang
    Li, Keyan
    Wan, Gang
    Liang, Yan
    Ji, Donghui
    Miller, Jeffrey T.
    Song, Chunshan
    Liu, Wei
    Liu, Zhongmin
    Guo, Xinwen
    [J]. CHINESE JOURNAL OF CATALYSIS, 2020, 41 (08) : 1198 - 1207
  • [3] High-Density Ultra-small Clusters and Single-Atom Fe Sites Embedded in Graphitic Carbon Nitride (g-C3N4) for Highly Efficient Catalytic Advanced Oxidation Processes
    An, Sufeng
    Zhang, Guanghui
    Wang, Tingwen
    Zhan, Wenna
    Li, Keyan
    Song, Chunshan
    Miller, Jeffrey T.
    Miao, Shu
    Wang, Junhu
    Guo, Xinwen
    [J]. ACS NANO, 2018, 12 (09) : 9441 - 9450
  • [4] Tuning photocatalytic activity of In2S3 broadband spectrum photocatalyst based on morphology
    Chen, Jun
    Liu, Wexia
    Gao, Wenwen
    [J]. APPLIED SURFACE SCIENCE, 2016, 368 : 288 - 297
  • [5] Atomic Fe Dispersed on N-Doped Carbon Hollow Nanospheres for High-Efficiency Electrocatalytic Oxygen Reduction
    Chen, Yifan
    Li, Zhijuan
    Zhu, Yanbo
    Sun, Dongmei
    Liu, Xien
    Xu, Lin
    Tang, Yawen
    [J]. ADVANCED MATERIALS, 2019, 31 (08)
  • [6] ZnFe2O4/g-C3N4 S-scheme photocatalyst with enhanced adsorption and photocatalytic activity for uranium(VI) removal
    Dai, Zhongran
    Zhen, Yuan
    Sun, Yusu
    Li, Le
    Ding, Dexin
    [J]. CHEMICAL ENGINEERING JOURNAL, 2021, 415
  • [7] Highly Selective Synthesis of Phenol from Benzene over a Vanadium-Doped Graphitic Carbon Nitride Catalyst
    Ding, Guodong
    Wang, Weitao
    Jiang, Tao
    Han, Buxing
    Fan, Honglei
    Yang, Guanying
    [J]. CHEMCATCHEM, 2013, 5 (01) : 192 - 200
  • [8] Solid state dispersion and hydrothermal synthesis, characterization and evaluations of TiO2/ZnO nanostructures for degradation of Rhodamine B
    Dolatabadi, Siamak
    Fattahi, Moslem
    Nabati, Mohammad
    [J]. DESALINATION AND WATER TREATMENT, 2021, 231 : 425 - 435
  • [9] Atomic cobalt on nitrogen-doped graphene for hydrogen generation
    Fei, Huilong
    Dong, Juncai
    Arellano-Jimenez, M. Josefina
    Ye, Gonglan
    Kim, Nam Dong
    Samuel, Errol L. G.
    Peng, Zhiwei
    Zhu, Zhuan
    Qin, Fan
    Bao, Jiming
    Yacaman, Miguel Jose
    Ajayan, Pulickel M.
    Chen, Dongliang
    Tour, James M.
    [J]. NATURE COMMUNICATIONS, 2015, 6
  • [10] Reduction of nitrophenols to aminophenols under concerted catalysis by Au/g-C3N4 contact system
    Fu, Yongsheng
    Huang, Ting
    Jia, Bingquan
    Zhu, Junwu
    Wang, Xin
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2017, 202 : 430 - 437
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