Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 37, Pages 18252-18257Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta06726k
Keywords
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Funding
- NSFC [21771197, 21821003, 21890382]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01C161]
- NSF of Guangdong Province [S2013030013474, 2017A030310258]
- FRF for the Central Universities
- Science, Technology, and Innovation Committee of Shenzhen Municipality [JCYJ20150630164505504]
- STPP of Guangzhou [201504010031]
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2D graphitic carbon nitride (g-C3N4) has attracted great attention as one of the rising-star candidates for prominent water-splitting photocatalysts. Here, we report an extremely facile one-step, template-free method to synthesize ultrathin g-C3N4 nanosheets (CN-UMF) by thermal polycondensation of urea simply covered with kitchen-available melamine foam (MF). Compared with g-C3N4 agglomerates (CN-U) prepared without the covering of MF, the as-synthesized CN-UMF has an average thickness of about 4.5nm and an enlarged surface area of 150.3 m(2) g(-1), leading to enhanced visible light absorption and charge carrier separation abilities. Therefore, it is able to serve as an efficient water-splitting photocatalyst to result in an outstanding hydrogen production rate of 5498 mol g(-1) h(-1). This work provides a new facile strategy for the scalable synthesis of 2D g-C3N4 photocatalysts and paves the way for batch and green production of other 2D materials with good performance.
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