Abstract
The graphitic carbon nitride (g-C3N4) was synthesized by the polymerization of dicyandiamide, then silver hybrid g-C3N4 (Ag/g-C3N4) catalyst was prepared by photodeposition, deposition-precipitation, and doping methods. The first two methods deposited silver nanoparticles on the surface of g-C3N4 semiconductor, while the last one embedded silver atom into the g-C3N4 matrix without destroying the host structure. The photodegradation behavior of methylene blue (MB) aqueous solution over Ag/g-C3N4 catalyst was performed to evaluate the photocatalytic activity of the as-prepared samples. The samples were characterized by XRD, UV-vis spectroscopy, FT-IR spectroscopy, elemental analysis and TEM. The experiment results indicate that the Ag/g-C3N4 prepared by the doping method possesses the best photocatalytic activity, which can be explained by promoting the transfer of electron due to the formation of organic-metal hybrid material.
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Wang X.C., Maeda K., Thomas A., Takanabe K., Xin G., Carlsson J.M., and Domen K., A metal-free polymeric photocatalyst for hydrogen production from water under visible light, Nat. Mater., 2009, 8(1): 76.
Wang X.C., Maeda K., Chen X.F., Takanabe K., Domen K., Hou Y.D., Fu X.Z., and Antonietti M., Polymer semiconductors for artificial photosynthesis: Hydrogen evolution by mesoporous graphitic carbon nitride with visible light, J. Am. Chem. Soc., 2009, 131(5): 1680.
Maeda K., Wang X.C., Nishihara Y., Lu D.L., Antonietti M., and Domen K., Photocatalytic activities of graphitic carbon nitride powder for water reduction and oxidation under visible light, J. Phys. Chem. C, 2009, 113(12): 4940.
Yan S.C., Li Z.S., and Zou Z.G., Photodegradation performance of g-C3N4 fabricated by directly heating melamine, Langmuir, 2009, 25(17): 10397.
Wang X.C., Chen X.F., Thomas A., Fu X.Z., and Antonietti M., Metal-containing carbon nitride compounds: a new functional organic-metal hybrid material, Adv. Mater., 2009, 21(16): 1609.
Nishimoto S.-I., Ohtani B., Kajiwara H., and Kagiya T., Photoinduced oxygen formation and silver-metal deposition in aqueous solutions of various silver salts by suspended titanium dioxide powder, J. Chem. Soc., Faraday Trans., 1983, 79(11): 2685.
Di Y., Wang X.C., Thomas A., and Antonietti M., Making metal-carbon nitride heterojunctions for improved photocatalytic hydrogen evolution with visible light, Chem. Cat. Chem., 2010, 2(7): 834.
Goettmann F., Fischer A., Thomas A., and Antonietti M., Chemical synthesis of mesoporous carbon nitrides using hard templates and their use as a metal-free catalyst for friedel-crafts reaction of benzene, Angew. Chem., Int. Ed., 2006, 45(27): 4467.
Bojdys M.J., Müller J.O., Antonietti M., and Thomas A., Ionothermal synthesis of crystalline, condensed, graphitic carbon nitride, Chem.-Eur. J., 2008, 14(27): 8177.
Komatsu T., Attempted chemical synthesis of graphite-like carbon nitride, J. Mater. Chem., 2001, 11(3): 799.
Komatsu T., Prototype carbon nitrides similar to the symmetric triangular form of melon, J. Mater. Chem., 2001, 11(3): 802.
Li X.F., Zhang J., Shen L.H., Ma Y.M., Lei W.W., Cui Q.L., and Zou G.T., Preparation and characterization of graphitic carbon nitride through pyrolysis of melamine, Appl. Phys. A: Mater. Sci. Proc., 2009, 94(2): 387.
Komatsu T., The first synthesis and characterization of cyameluric high polymers, Macromol. Chem. Phys., 2001, 202(1): 19.
Thomas A., Fischer A., Goettmann F., Antonietti M., Müller J.O., Schlogl R., and Carlsson J.M., Graphitic carbon nitride materials: variation of structure and morphology and their use as metal-free catalysts, J. Mater. Chem., 2008, 18(41): 4893.
Zhang Y.J., Mori T., Ye J.H., and Antonietti M., Phosphorus-doped carbon nitride solid: Enhanced electrical conductivity and photocurrent generation, J. Am. Chem. Soc., 2010, 132(18): 6294.
Gao B.F., Ma Y., Cao Y.A., Yang W.S., and Yao J.N., Great enhancement of photocatalytic activity of nitrogen-doped titania by coupling with tungsten oxide, J. Phys. Chem. B, 2006, 110(29): 14391.
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Meng, Y., Shen, J., Chen, D. et al. Photodegradation performance of methylene blue aqueous solution on Ag/g-C3N4 catalyst. Rare Metals 30 (Suppl 1), 276–279 (2011). https://doi.org/10.1007/s12598-011-0284-7
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DOI: https://doi.org/10.1007/s12598-011-0284-7