Journal
CERAMICS INTERNATIONAL
Volume 43, Issue 1, Pages 1522-1529Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2016.10.125
Keywords
Chemical preparation; Composites; Catalysis; Photocatalytic activity
Categories
Funding
- National Natural Science Foundation of China [51572103, 51302101, 51502106, 51302100]
- Natural Science Foundation of Anhui Province [1408085QE78]
- Foundation for Young Talents in College of Anhui Province [12600941]
- Leading talent of Anhui Province and Innovation Team of Design and Application of Advanced Energetic Materials
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In this paper, novel Z-scheme porous graphitic C3N4 (Pg-C3N4)/Ag3PO4 composite was synthesized by a facile and green method at room temperature. Scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive spectrometer (EDS) and UV-vis diffuse reflectance spectroscopy (DRS) were used to characterize the structural, crystal and optical properties of the as-prepared nanocomposites. Photocatalytic activity of catalysts is evaluated by degrading methylene blue (MB) under visible light irradiation. The results showed that photocatalytic activity of Pg-C3N4/Ag3PO4 was much higher than that of Pg-C3N4 and Ag3PO4. The kinetic constant K-app of MB degradation over Pg-C3N4/Ag3PO4 was 1.45 and 9.6 times as high as that of Ag3PO4 and Pg-C3N4, respectively. Finally, Z-scheme photocatalytic mechanism is proposed.
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