Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 228, Issue -, Pages 60-64Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2015.04.027
Keywords
Carbon nitride; Photocatalysis; Metal-doping; Nanosheet; Supramolecular network
Funding
- National Natural Science Foundation of China [51402261]
- Science Foundation of Zhejiang Sci-Tech University (ZSTU) [13012138-Y]
- public technology research plan of Zhejiang Province, China [201403041]
- Zhejiang Provincial Top Key Academic Discipline of Textile Science and Engineering
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Here we report a novel synthetic pathway for preparation of Cu-doped g-C3N4 (Cu-g-C3N4) with nanosheet morphology by using a two dimensional Cu-melamine supramolecular network as both sacrificial template and precursor. The specific surface area of Cu-g-C3N4 is 40.86 m(2) g(-1), which is more than 7 times larger than that of pure g-C3N4. Cu-g-C3N4 showed strong optical absorption in the visible-light region and expanded the absorption to the near-infrared region. The uniform nanosheet morphology, higher surface area and strong visible-light absorption have enabled Cu-g-C3N4 exhibiting enhanced visible light photocatalytic activity for the photo-degradation of methylene blue (MB). The results indicate that metal-melamine supramolecular network can be promising precursors for the one step preparation of efficient metal-doped g-C3N4 photocatalysts. (C) 2015 Elsevier Inc. All rights reserved.
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