Synthesis of g-C3N4/W-SBA-15 Composites for Photocatalytic Degradation of Tetracycline Hydrochloride


Graphitic carbon nitride (g-C3N4) and tungsten incorporated SBA-15 (W-SBA-15) hybrid materials were prepared by a facial thermal polymerization method using dicyandiamide as a precursor and W-SBA-15 as a support. The as-prepared samples were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and diffuse reflectance spectroscopy (UV–Vis DRS). The catalytic properties of g-C3N4/W-SBA-15 composites were assessed by degrading tetracycline hydrochloride (TC) under simulated solar light irradiation. Results from characterizations revealed that the addition of g-C3N4 to W-SBA-15 could apparently improve the photocatalytic degradation properties. Among these catalysts, g-C3N4(3.0)/W-SBA-15 exhibited the highest catalytic activity, which was almost 4.3 times greater than that of W-SBA-15. The enhanced photocatalytic activity of g-C3N4/W-SBA-15 may be due to the formation of heterojunction between g-C3N4 and tungsten species, resulting in the effective separation of photo-generated charge carriers and increased absorption of visible light. Moreover, the g-C3N4/W-SBA-15 composite had high cycling reusability and stability, which was an important factor for its potential actual applications.

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The authors are grateful to the Chinese National Foundation of Natural Sciences (Grant No. 51808040, 21476171, and 21507006); Key research and development Plan Project of Shandong Province (2015GGX104012 and 2017GGX80104), Shandong Province college science and technology plan project (J18KA013 and18KB058), and Foundation of Binzhou University (BZXYG1708, BZXYLG1902, BZXYG1709 and BZXYSYXM202003) for financial supports.

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Duan, Y., Cao, Y., Shang, X. et al. Synthesis of g-C3N4/W-SBA-15 Composites for Photocatalytic Degradation of Tetracycline Hydrochloride. J Inorg Organomet Polym 31, 2140–2149 (2021).

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  • W-SBA-15
  • g-C3N4
  • Composites
  • Photocatalytic degradation
  • Tetracycline hydrochloride