Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 769, Issue -, Pages 611-619Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.08.028
Keywords
Layered double hydroxides; MgFe MMO; g-C3N4; 2D/2D inter-plane heterojunction; Hydrogen production
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Funding
- 973 Program [2014CB932101]
- National Natural Science Foundation of China
- 111 Project [B07004]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1205]
- Fundamental Research Funds for the Central Universities [buctrc201527]
- Open Research Fund of State Key Laboratory of Multi-phase Complex Systems [MPCS-2017-D-06]
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As an emerging p-conjugated materials, graphitic carbon nitride (g-C3N4) has captured worldwide attention due to impending energy crisis and increasingly serious environmental contamination. In this work, the two-dimensional (2D) MgFe mixed metal oxide (MMO) derived from the layered double hydroxides precursor was employed to construct 2D/2D nanosheet heterojunction with g-C3N4. The formed CN/MgFe-30 nanosheet heterojunctions exhibited the optimal photocatalytic hydrogen production about 6.64 times (1.26 mmol/g(-1).h(-1)) than that of pure g-C3N4 under the visible light irradiation, which were attributed to unique inter-plane 2D/2D structure and excellent synergistic effect between g-C3N4 and MgFe MMO. The experiment characterization proved that MgFe MMO nanosheet not only suppressed the overgrowth of g-C3N4, resulting in the formation of nanoscale g-C3N4, but also facilitated the photoinduced carrier separation and transfer based on 2D/2D CN/MgFe-X nanosheet heterojunctions. This proposed synthesis strategy pave away to realize the large-scale production of nano-g-C3N4 based 2D/2D nanosheet heterojunctions photocatalysts for hydrogen production. (C) 2018 Elsevier B.V. All rights reserved.
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