Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-26T15:38:11.677Z Has data issue: false hasContentIssue false
  • English
  • Français

Facile synthesis of Ag3PO4/C3N4 composites with improved visible light photocatalytic activity

Published online by Cambridge University Press:  21 April 2015

Bo Chai ,
Fangyuan Zou  and
Wenjie Chen
Bo Chai*
Affiliation:
School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, People's Republic of China
Fangyuan Zou
Affiliation:
School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, People's Republic of China
Wenjie Chen
Affiliation:
School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, People's Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

The Ag3PO4/C3N4 composites with improved photocatalytic activity were prepared by a facile in situ deposition of Ag3PO4 particles on the surface of C3N4 sheets and characterized by x-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, x-ray photoelectron spectroscopy, UV–vis diffuse reflectance absorption spectra, Fourier transform infrared spectra, and photoluminescence spectra. The photocatalytic degradation of Rhodamine B (RhB) over the Ag3PO4/C3N4 composites was investigated and optimized, indicating that the optimal amount of Ag3PO4 in the composites was 90 wt%. The remarkably improved photocatalytic activity of Ag3PO4/C3N4 composites could be attributed to the effective separation of photogenerated charge carriers. The photoelectrochemical measurements confirmed that the charge separation efficiency was improved for the formation of composites. Moreover, the tests of radical scavengers demonstrated that h+ and ·O2− were the main active species for the degradation of RhB.

Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 8 , 28 April 2015 , pp. 1128 - 1136
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Hu, X.L., Li, G.S., and Yu, J.C.: Design, fabrication, and modification of nanostructured semiconductor materials for environmental and energy applications. Langmuir 26, 3031 (2010).CrossRefGoogle ScholarPubMed
Kubacka, A., Fernández-García, M., and Colón, G.: Advanced nanoarchitectures for solar photocatalytic applications. Chem. Rev. 112, 1555 (2012).CrossRefGoogle ScholarPubMed
Sang, Y., Kuai, L., Chen, C.Y., Fang, Z., and Geng, B.Y.: Fabrication of a visible-light-driven plasmonic photocatalyst of AgVO3@AgBr@Ag nanobelt heterostructures. ACS Appl. Mater. Interfaces 6, 5061 (2014).CrossRefGoogle ScholarPubMed
Xi, G.C. and Ye, J.H.: Synthesis of bismuth vanadate nanoplates with exposed {001} facets and enhanced visible-light photocatalytic properties. Chem. Commun. 46, 1893 (2010).CrossRefGoogle ScholarPubMed
Wu, J.J., Huang, F.Q., Lü, X.J., Chen, P., Wan, D.Y., and Xu, F.F.: Improved visible-light photocatalysis of nano-Bi2Sn2O7 with dispersed s-bands. J. Mater. Chem. 21, 3872 (2011).CrossRefGoogle Scholar
Bi, Y.P., Ouyang, S.X., Umezawa, N., Cao, J.Y., and Ye, J.H.: Facet effect of single-crystalline Ag3PO4 sub-microcrystals on photocatalytic properties. J. Am. Chem. Soc. 133, 6490 (2011).CrossRefGoogle ScholarPubMed
Wang, W.G., Cheng, B., Yu, J.G., Liu, G., and Fan, W.H.: Visible-light photocatalytic activity and deactivation mechanism of Ag3PO4 spherical particles. Chem. Asian J. 7, 1902 (2012).CrossRefGoogle ScholarPubMed
Wang, H., He, L., Wang, L.H., Hu, P.F., Guo, L., Han, X.D., and Li, J.H.: Facile synthesis of Ag3PO4 tetrapod microcrystals with an increased percentage of exposed {110} facets and highly efficient photocatalytic properties. CrystEngComm 14, 8342 (2012).CrossRefGoogle Scholar
Cui, Y.J., Huang, J.H., Fu, X.Z., and Wang, X.C.: Metal-free photocatalytic degradation of 4-chlorophenol in water by mesoporous carbon nitride semiconductors. Catal. Sci. Technol. 2, 1396 (2012).CrossRefGoogle Scholar
Liu, J.H., Zhang, T.K., Wang, Z.C., Dawson, G., and Chen, W.: Simple pyrolysis of urea into graphitic carbon nitride with recyclable adsorption and photocatalytic activity. J. Mater. Chem. 21, 14398 (2011).CrossRefGoogle Scholar
Dong, P.Y., Wang, Y.H., Cao, B.C., Xin, S.Y., Guo, L.N., Zhang, J., and Li, F.H.: Ag3PO4/reduced graphite oxide sheets nanocomposites with highly enhanced visible light photocatalytic activity and stability. Appl. Catal., B 132–133, 45 (2013).CrossRefGoogle Scholar
Wang, Z., Yin, L., Zhang, M., Zhou, G.W., Fei, H., Shi, H.X., and Dai, H.J.: Synthesis and characterization of Ag3PO4/multiwalled carbon nanotube composite photocatalyst with enhanced photocatalytic activity and stability under visible light. J. Mater. Sci. 49, 1585 (2014).CrossRefGoogle Scholar
Sun, J.X., Yuan, Y.P., Qiu, L.G., Jiang, X., Xie, A.J., Shen, Y.H., and Zhu, J.F.: Fabrication of composite photocatalyst g-C3N4-ZnO and enhancement of photocatalytic activity under visible light. Dalton Trans. 41, 6756 (2012).CrossRefGoogle ScholarPubMed
Cao, J., Luo, B.D., Lin, H.L., Xu, B.Y., and Chen, S.F.: Visible light photocatalytic activity enhancement and mechanism of AgBr/Ag3PO4 hybrids for degradation of methyl orange. J. Hazard. Mater. 217–218, 107 (2012).CrossRefGoogle ScholarPubMed
Yao, W.F., Zhang, B., Huang, C.P., Ma, C., Song, X.L., and Xu, Q.J.: Synthesis and characterization of high efficiency and stable Ag3PO4/TiO2 visible light photocatalyst for the degradation of methylene blue and rhodamine B solutions. J. Mater. Chem. 22, 4050 (2012).CrossRefGoogle Scholar
Liu, W., Wang, M.L., Xu, C.X., Chen, S.F., and Fu, X.L.: Ag3PO4/ZnO: An efficient visible-light-sensitized composite with its application in photocatalytic degradation of rhodamine B. Mater. Res. Bull. 48, 106 (2013).CrossRefGoogle Scholar
Zhang, L.L., Zhang, H.C., Huang, H., Liu, Y., and Kang, Z.H.: Ag3PO4/SnO2 semiconductor nanocomposites with enhanced photocatalytic activity and stability. New J. Chem. 36, 1541 (2012).CrossRefGoogle Scholar
Xu, Y.S. and Zhang, W.D.: Monodispersed Ag3PO4 nanocrystals loaded on the surface of spherical Bi2MoO6 with enhanced photocatalytic performance. Dalton Trans. 42, 1094 (2013).CrossRefGoogle ScholarPubMed
Fu, G.K., Xu, G.N., Chen, S.P., Lei, L., and Zhang, M.L.: Ag3PO4/Bi2WO6 hierarchical heterostructures with enhanced visible light photocatalytic activity for the degradation of phenol. Catal. Commun. 40, 120 (2013).CrossRefGoogle Scholar
Chai, B., Peng, T.Y., Mao, J., Li, K., and Zan, L.: Graphitic carbon nitride (g-C3N4)-Pt-TiO2 nanocomposite as an efficient photocatalyst for hydrogen production under visible light irradiation. Phys. Chem. Chem. Phys. 14, 16745 (2012).CrossRefGoogle ScholarPubMed
Wang, Y.J., Shi, R., Lin, J., and Zhu, Y.F.: Enhancement of photocurrent and photocatalytic activity of ZnO hybridized with graphite-like C3N4 . Energy Environ. Sci. 4, 2922 (2011).CrossRefGoogle Scholar
Sun, L.M., Zhao, X., Jia, C.J., Zhou, Y.X., Cheng, X.F., Li, P., Liu, L., and Fan, W.L.: Enhanced visible-light photocatalytic activity of g-C3N4-ZnWO4 by fabricating a heterojunction: Investigation based on experimental and theoretical studies. J. Mater. Chem. 22, 23428 (2012).CrossRefGoogle Scholar
Fu, J., Chang, B.B., Tian, Y.L., Xi, F.N., and Dong, X.P.: Novel C3N4-CdS composite photocatalysts with organic-inorganic heterojunctions: In situ synthesis exceptional activity, high stability and photocatalytic mechanism. J. Mater. Chem. A 1, 3083 (2013).CrossRefGoogle Scholar
Ye, L.Q., Liu, J.Y., Jiang, Z., Peng, T.Y., and Zan, L.: Facets coupling of BiOBr-g-C3N4 composite photocatalyst for enhanced visible-light-driven photocatalytic activity. Appl. Catal., B 142–143, 1 (2013).Google Scholar
Katsumata, H., Sakai, T., Suzuki, T., and Kaneco, S.: Highly efficient photocatalytic activity of g-C3N4/Ag3PO4 hybrid photocatalysts through Z-scheme photocatalytic mechanism under visible light. Ind. Eng. Chem. Res. 53, 8018 (2014).CrossRefGoogle Scholar
Chai, B., Liao, X., Song, F.K., and Zhou, H.: Fullerene modified C3N4 composites with enhanced photocatalytic activity under visible light irradiation. Dalton Trans. 43, 982 (2014).CrossRefGoogle ScholarPubMed
Xiu, Z.L., Bo, H., Wu, Y.Z., and Hao, X.P.: Graphite-like C3N4 modified Ag3PO4 nanoparticles with highly enhanced photocatalytic activities under visible light irradiation. Appl. Surf. Sci. 289, 394 (2014).CrossRefGoogle Scholar
Kumar, S., Surendar, T., Baruah, A., and Shanker, V.: Synthesis of a novel and stable g-C3N4-Ag3PO4 hybrid nanocomposite photocatalyst and study of the photocatalytic activity under visible light irradiation. J. Mater. Chem. A 1, 5333 (2013).CrossRefGoogle Scholar
Jiang, D.L., Zhu, J.J., Chen, M., and Xie, J.M.: Highly efficient heterojunction photocatalyst based on nanoporous g-C3N4 sheets modified by Ag3PO4 nanoparticles: Synthesis and enhanced photocatalytic activity. J. Colloid Interface Sci. 417, 115 (2014).CrossRefGoogle ScholarPubMed
Zhang, F.J., Xie, F.Z., Zhu, S.F., Liu, J., Zhang, J., Mei, S.F., and Zhao, W.: A novel photofunctional g-C3N4/Ag3PO4 bulk heterojunction for decolorization of Rh.B. Chem. Eng. J. 228, 435 (2013).CrossRefGoogle Scholar
He, P.Z., Song, L.M., Zhang, S.J., Wu, X.Q., and Wei, Q.W.: Synthesis of g-C3N4/Ag3PO4 heterojunction with enhanced photocatalytic performance. Mater. Res. Bull. 51, 432 (2014).CrossRefGoogle Scholar
Ge, M., Zhu, N., Zhao, Y.P., Li, J., and Liu, L.: Sunlight-assisted degradation of dye pollutants in Ag3PO4 suspension. Ind. Eng. Chem. Res. 51, 5167 (2012).CrossRefGoogle Scholar
Liang, Q.H., Shi, Y., Ma, W.J., Li, Z., and Yang, X.M.: Enhanced photocatalytic activity and structural stability by hybridizing Ag3PO4 nanospheres with graphene oxide sheets. Phys. Chem. Chem. Phys. 14, 15657 (2012).CrossRefGoogle ScholarPubMed