Journal
NANOSCALE
Volume 11, Issue 15, Pages 7433-7439Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9nr00409b
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Funding
- National Natural Science Foundation of China [51772041, 11474046, 61775024, 11704058, 11874101, 21503034]
- Natural Science Foundation of Liaoning Province [20170540190]
- Program for Liaoning Excellent Talents in University (LNET) [LR2015016, LR2017004]
- Program for Dalian Excellent Talents [2016RQ069]
- Science and the Technique Foundation of Dalian [2014J11JH134, 2015J12JH201]
- Fundamental Research Funds for Central Universities
- [DUT16RC(3) 111]
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The NaYF4:Yb,Er/W18O49 heterostructure is an excellent photocatalyst that can promote H-2 evolution by hydrolyzing BH3NH3 under near-infrared (NIR) light irradiation. At the same time, the photothermal effect can be produced in photocatalytic reactions, which will cause the luminescence efficiency and photocatalytic activity to decrease. Determining how to take advantage of that photothermal effect becomes a major problem. Moreover, the energy transfer (ET) process from Er ions to Nd ions in NaYF4 co-doped with Yb/Er/Nd ions (NaYF4:Yb,Er,Nd) occurred at high temperature. Herein, the NaYF4:Yb,Er,Nd/W18O49 quasi-core-shell heterostructure was designed to achieve better H-2 production capacity; this heterostructure exhibits a 1.5-fold enhancement of photocatalytic activity for H-2 evolution as compared with the NaYF4:Yb,Er/W18O49 heterostructure. This study provides a new way to explore the catalytic activities in the NIR field for application in the development of a sustainable energy source.
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