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  • Title: One-step synthesis of high photocatalytic graphitic carbon nitride porous nanosheets.
    Author: Li Y, Lu Y, Wang Y, Dong L, Chao M, Sun J, Zhao Z, Zhang J.
    Journal: Nanotechnology; 2020 Nov 13; 31(46):464001. PubMed ID: 32759479.
    Abstract:
    As a metal-free photocatalyst, graphitic carbon nitride (g-C3N4) has attracted tremendous attention. Preparation of porous few-layer g-C3N4 nanosheets has been proven to be an effective strategy to obtain high photocatalytic performance. At present, most methods are expensive, time-consuming or complicated. Here, a low-cost, facile and environment-friendly one-step synthesis method of porous few-layer g-C3N4 nanosheets is designed by introducing water in the precursor. Straightforward calcination of the precursor, which decomposes to form ammonia, can produce g-C3N4 nanosheets with the assistance of water. Under the visible light (>400 nm), the photocatalytic H2 evolution performance of the so-obtained nanosheets is 3214 μmol · g-1 · h-1, which is 17.3 times of the original bulk g-C3N4. The apparent quantum yield is 27% under the 380 nm monochromatic light irradiation.
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