期刊
APPLIED SURFACE SCIENCE
卷 311, 期 -, 页码 164-171出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2014.05.036
关键词
g-C3N4; Phosphorus; Iron; Photocatalysis; Doping site
类别
资金
- New Century Excellent Talents in University [NCET-11-1011]
- National Natural Science Foundation of China [41071317, 30972418, 21103077]
- National Key Technology R & D Programme of China [2007BAC16B07, 2012ZX07505-001]
- Natural Science Foundation of Liaoning Province [20092080]
- Natural Science Foundation of Liaoning Shihua University [2011XJJ-021]
- Students' Innovation Fund Project of China
Preparation of Fe and P co-doped g-C3N4 was described, using dicyandiamide monomer, ferric nitrate, and diammonium hydrogen phosphate as precursor. X-ray diffraction (XRD), N-2 adsorption, UV-vis spectroscopy, Fourier transform infrared spectra (FT-IR), photoluminescence (PL), X-ray photoelectron spectroscopy (XPS), and photocurrent measurement were used to characterize the prepared catalysts. The results indicated that the addition of dopants inhibited the crystal growth of graphitic carbon nitride, enhanced the surface area, decreased the band gap energy, and restrained the recombination of photogenerated electrons and holes. Fe and P co-doped g-C3N4 exhibited much higher Rhodamine B (RhB) photodegradation rate and H-2 production ability than that of single doped and neat g-C3N4 catalysts. The possible mechanism and doping sites of P and Fe were proposed. (C) 2014 Elsevier B.V. All rights reserved.
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