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Preparation and photocatalytic application of AgBr modified Bi2WO6 nanosheets with high adsorption capacity

  • Peng Zhang (a1), Zhiyuan Dong (a2), Yuanming Ran (a2), Hualin Xie (a2), Yun Lu (a3) and Shimin Ding (a4)...


AgBr-modified Bi2WO6 nanosheets were successfully synthesized using a CTAB-assisted hydrothermal method followed by a facile deposition–precipitation procedure. The as-prepared photocatalysts were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), UV-vis diffuse reflectance spectroscopy (DRS), Brunauer–Emmett–Teller (BET), and photoluminescence emission spectroscopy (PL). AgBr nanoparticles were found evenly distributed on the surface of the Bi2WO6 nanosheets. The AgBr/Bi2WO6 nanocomposite demonstrated enhanced pollutant decolorization efficiency in eliminating Rhodamine B (RhB), methyl orange (MO), and phenol aqueous solutions under simulated solar light irradiation. It has been noticed that the adsorption performance of both Bi2WO6 nanosheets and AgBr-modified Bi2WO6 nanosheets played a more important role in the decolorization of pollutants, such as RhB and MO, than their photocatalytic ability. The high adsorption efficiency of the photocatalysts was mainly attributed to the increased surface area and the exposed reactive facets of the materials.


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1.Zhang, C. and Zhu, Y.F.: Synthesis of square Bi2WO6 nanoplates as high-activity visible-light-driven photocatalysts. Chem. Mater. 17, 3537 (2005).
2.Fu, H.B., Pan, C.S., Yao, W.Q., and Zhu, Y.F.: Visible-light-induced degradation of rhodamine B by nanosized Bi2WO6. J. Phys. Chem. B 109, 22432 (2005).
3.Yu, S.X., Zhang, Y.H., Li, M., Du, X., and Huang, H.W.: Non-noble metal Bi deposition by utilizing Bi2WO6 as the self-sacrificing template for enhancing visible light photocatalytic activity. Appl. Surf. Sci. 391, 491 (2017).
4.Zhang, L.S., Wang, W.Z., Zhou, L., and Xu, H.L.: Bi2WO6 nano-and microstructures: Shape control and associated visible-light-driven photocatalytic activities. Small 3, 1618 (2007).
5.Liu, Y.M., Tang, H.B., Lv, H., Li, Z.J., Ding, Z.W., and Li, S.: Self-assembled three-dimensional hierarchical Bi2WO6 microspheres by sol–gel-hydrothermal route. Ceram. Int. 40, 6203 (2014).
6.Lou, Z., Deng, J.N., Wang, L.L., Wang, L.J., and Zhang, T.: Curling-like Bi2WO6 microdiscs with lamellar structure for enhanced gas-sensing properties. Sens. Actuators, B 182, 217 (2013).
7.Sun, S.M., Wang, W.Z., Zhang, L., Gao, E.P., Jiang, D., Sun, Y.F., and Xie, L.: Ultrathin {001}-oriented bismuth tungsten oxide nanosheets as highly efficient photocatalysts. ChemSusChem 6, 1873 (2013).
8.Zhou, Y.G., Zhang, Y.F., Lin, M.S., Long, J.L., Zhang, Z.Z., Lin, H.X., Wu, J.C.S., and Wang, X.X.: Monolayered Bi2WO6 nanosheets mimicking heterojunction interface with open surfaces for photocatalysis. Nat. Commun. 6, 8340 (2015).
9.Zhang, P., Hua, X., Teng, X.X., Liu, D.S., Qin, Z.H., and Ding, S.M.: CTAB assisted hydrothermal synthesis of lamellar Bi2WO6 with superior photocatalytic activity for rhodamine b degradation. Mater. Lett. 185, 275 (2016).
10.Sun, D., Le, Y., Jiang, C.J., and Cheng, B.: Ultrathin Bi2WO6 nanosheet decorated with Pt nanoparticles for efficient formaldehyde removal at room temperature. Appl. Surf. Sci. 441, 429 (2018).
11.Dai, K., Lu, L.H., Dong, J., Ji, Z.Y., Ping, Z.G., Liu, Q.Z., Zhang, Y.X., LI, D.P., and Liang, C.H.: Facile synthesis of a surface plasmon resonance-enhanced Ag/AgBr heterostructure and its photocatalytic performance with 450 nm LED illumination. Dalton Trans. 42, 4657 (2013).
12.Zang, Y.J. and Farnood, R.: Photocatalytic activity of AgBr/TiO2 in water under simulated sunlight irradiation. Appl. Catal., B 79, 334 (2008).
13.Shi, L., Liang, L., Ma, J., Meng, Y.N., Zhong, S.F., Wang, F.X., and Sun, J.M.: Highly efficient visible light-driven Ag/AgBr/ZnO composite photocatalyst for degrading Rhodamine B. Ceram. Int. 40, 3495 (2014).
14.Xu, H., Yan, J., Xu, Y.G., Song, Y.H., Li, H.M., Xia, J.X., Huang, C.J., and Wan, H.L.: Novel visible-light-driven AgX/graphite-like C3N4 (X = Br, I) hybrid materials with synergistic photocatalytic activity. Appl. Catal., B 129, 182 (2013).
15.Amornpitoksuk, P. and Suwanboon, S.: Photocatalytic degradation of dyes by AgBr/Ag3PO4 and the ecotoxicities of their degraded products. Chin. J. Catal. 37, 711 (2016).
16.Wang, D.J., Guo, L., Zhen, Y.Z., Yue, L.L., Xue, G.L., and Fu, F.: AgBr quantum dots decorated mesoporous Bi2WO6 architectures with enhanced photocatalytic activities for methylene blue. J. Mater. Chem. A 2, 11716 (2014).
17.Lin, S.L., Liu, L., Hu, J.S., Liang, Y.H., and Cui, W.Q.: Nano Ag@AgBr surface-sensitized Bi2WO6 photocatalyst: Oil-in-water synthesis and enhanced photocatalytic degradation. Appl. Surf. Sci. 324, 20 (2015).
18.Chen, F., Yang, Q., Li, X.M., Zeng, G.M., Wang, D.B., Niu, C.G., Zhao, J.W., An, H.X., Xie, T., and Deng, Y.C.: Hierarchical assembly of graphene-bridged Ag3PO4/Ag/BiVO4 (040) Z-scheme photocatalyst: An efficient, sustainable and heterogeneous catalyst with enhanced visible-light photoactivity towards tetracycline degradation under visible light irradiation. Appl. Catal., B 200, 330 (2017).
19.Yang, Y.X., Guo, W., Guo, Y.N., Zhao, Y.H., Yuan, X., and Guo, Y.H.: Fabrication of Z-scheme plasmonic photocatalyst Ag@AgBr/g-C3N4 with enhanced visible-light photocatalytic activity. J. Hazard. Mater. 271, 150 (2014).
20.Fuku, K., Hayashi, R., Takakura, S., Kamegawa, T., Mori, K., and Yamashita, H.: The synthesis of size-and color-controlled silver nanoparticles by using microwave heating and their enhanced catalytic activity by localized surface plasmon resonance. Angew. Chem., Int. Ed. 52, 7446 (2013).
21.Yu, J.C., Yu, J.G., Ho, W.K., Jiang, Z.T., and Zhang, L.Z.: Effects of F-doping on the photocatalytic activity and microstructures of nanocrystalline TiO2 powders. Chem. Mater. 14, 3808 (2002).
22.Subramanian, V., Wolf, E.E., and Kamat, P.V.: Catalysis with TiO2/gold nanocomposites. Effect of metal particle size on the Fermi level equilibration. J. Am. Chem. Soc. 126, 4943 (2004).
23.Zhang, Z.J., Wang, W.Z., Wang, L., and Sun, S.M.: Enhancement of visible-light photocatalysis by coupling with narrow-band-gap semiconductor: A case study on Bi2S3/Bi2WO6. ACS Appl. Mater. Interfaces 4, 593 (2012).
24.Sing, K.S.W.: Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984). Pure Appl. Chem. 57, 603 (1985).
25.Feng, Z., Zeng, L., Chen, Y.J., Ma, Y.Y., Zhao, C.R., Jin, R.S., Lu, Y., Wu, Y., and He, Y.M.: In situ preparation of Z-scheme MoO3/g-C3N4 composite with high performance in photocatalytic CO2 reduction and RhB degradation. J. Mater. Res. 32, 3660 (2017).
26.Fu, S.R., He, Y.M., Wu, Q., Wu, Y., and Wu, T.H.: Visible-light responsive plasmonic Ag2O/Ag/g-C3N4 nanosheets with enhanced photocatalytic degradation of Rhodamine B. J. Mater. Res. 31, 2252 (2016).
27.Wua, F.J., Lia, X., Liu, W., and Zhang, S.T.: Highly enhanced photocatalytic degradation of methylene blue over the indirect all-solid-state Z-scheme g-C3N4-RGO-TiO2 nanoheterojunctions. Appl. Surf. Sci. 405, 60 (2017).
28.Wen, J.Q., Xie, J., Chen, X.B., and Li, X.: A review on g-C3N4-based photocatalysts. Appl. Surf. Sci. 391, 72 (2017).
29.Wang, H.N., Wang, T., Han, L., Tang, M., Zhong, J., Huang, W.Q., and Chen, R.Y.: VOC adsorption and desorption behavior of hydrophobic, functionalized SBA-15. J. Mater. Res. 31, 516 (2016).
30.Rames, M., Rao, C., Anandan, S., and Nagaraja, H.: Adsorption and photocatalytic properties of NiO nanoparticles synthesized via a thermal decomposition process. J. Mater. Res. 33, 601 (2016).
31.Boruban, C. and Esenturk, E.N.: Synthesis of CuO nanostructures on zeolite-Y and investigation of their CO2 adsorption properties. J. Mater. Res. 32, 3669 (2017).
32.Song, J., Huang, K., and Wang, N.: Gas-sensing properties and in situ diffuse-reflectance Fourier-transform infrared spectroscopy study of diethyl ether adsorption and reactions on SnO2/rGO film. J. Mater. Res. 31, 2035 (2016).
33.Liu, Y.K., Huang, Q., Jiang, G.H., Liu, D.P., and Yu, W.J.: Cu2O nanoparticles supported on carbon nanofibers as a cost-effective and efficient catalyst for RhB and phenol degradation. J. Mater. Res. 32, 3605 (2017).
34.Bai, C.Y., Franchin, G., Elsayed, H., Zaggia, A., Conte, L., Li, H.Q., and Colombo, P.: High-porosity geopolymer foams with tailored porosity for thermal insulation and wastewater treatment. J. Mater. Res. 32, 3251 (2017).
35.Kim, K.J., Seo, J.H., Lee, M., Moon, J., Lee, K.C., Yi, D.K., and Paik, U.: Ce3+-enriched core–shell ceria nanoparticles for silicate adsorption. J. Mater. Res. 32, 2829 (2017).
36.Zhang, P., Wu, P.Y., Bao, S.Y., Wang, Z., Tian, B.Z., and Zhang, J.L.: Synthesis of sandwich-structured AgBr@Ag@TiO2 composite photocatalyst and study of its photocatalytic performance for the oxidation of benzyl alcohols to benzaldehydes. Chem. Eng. J. 306, 1151 (2016).



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