期刊
NANOMATERIALS
卷 8, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/nano8060427
关键词
photocatalytic degradation; g-C3N4; mesoporous Nb2O5; organic pollutant
类别
资金
- National Natural Science Foundation of China [21673046, 21473036, 91645201, 21371035]
A series of composites consisting of g-C3N4 sheet and mesoporous Nb2O5 (mNb(2)O(5)) microsphere were fabricated by in situ hydrolysis deposition of NbCl5 onto g-C3N4 sheet followed by solvothermal treatment. The samples were characterized using powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), N-2 adsorption-desorption, X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy (PL). The photocatalytic activity of the composites was studied by degradation of rhodamine B (RhB) and tetracycline hydrochloride (TC-HCl) in aqueous solution under visible light irradiation (lambda > 420 nm). Compared with g-C3N4 and mNb(2)O(5), g-C3N4-mNb(2)O(5) composites have higher photocatalytic activity due to synergistic effect between g-C3N4 and mNb(2)O(5). Among these composites, 4% g-C3N4-mNb(2)O(5) has the highest efficiency and good recyclability for degradation of both RhB and TC-HCl.
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