Journal of Materials Science

, Volume 53, Issue 8, pp 6008–6020 | Cite as

Fabrication of sandwich-structured g-C3N4/Au/BiOCl Z-scheme photocatalyst with enhanced photocatalytic performance under visible light irradiation

  • Shuo Zhao
  • Yiwei Zhang
  • Yuming Zhou
  • Jiasheng Fang
  • Yanyun Wang
  • Chao Zhang
  • Wenxia Chen
Chemical routes to materials


A novel sandwich-structured g-C3N4/Au/BiOCl Z-scheme heterojunction with enhanced visible-light-driven photocatalytic activity was successfully fabricated using the reactable ionic liquid (1-methyl-3-[3’-(trimethoxysilyl) propyl] imidazolium chloride) as the template by a facile photoreduction followed by in situ deposition. The samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, scanning electron microscope and ultraviolet–visible diffuse reflectance spectroscopy. The role of Au in this system was discussed during the degradation of rhodamine B and tetracycline and photocatalytic hydrogen evolution under visible light irradiation. The influence of BiOCl dosage on the photocatalytic activity was also systematically investigated. The result found that the photocatalytic activity was improved using the as-fabricated CN/Au/BiOCl Z-scheme heterojunction than g-C3N4 or BiOCl. Besides, the fast separation rate of photogenerated electron–hole pairs and the improved light absorption in visible ranges of CN/Au/BiOCl samples might be related to the fact that the construction of Z-scheme could improve the optical and conductive properties and enhance the final photocatalytic property. From the free radicals trapping experiments, it was found that the photogenerated holes of BiOCl were the predominant active species in the photocatalytic process.



The authors are grateful to the financial supports of the National Natural Science Foundation of China (Grant Nos. 21676056, 21376051 and 51673040), “Six Talents Pinnacle Program” of Jiangsu Province of China (JNHB-006), Qing Lan Project of Jiangsu Province (1107040167), Graduate student scientific research innovation program of Jiangsu Province (KYCX17_0136), Scientific Research Foundation of Graduate School of Southeast University (YBJJ1733), Fund Project for Transformation of Scientific and Technological Achievements of Jiangsu Province of China (Grant No. BA2014100), Fundamental Research Funds for the Central Universities (2242015k30001, 3207047402, 3207046409) and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) (1107047002).

Supplementary material

10853_2018_1995_MOESM1_ESM.doc (1 mb)
Supplementary material 1 (DOC 1042 kb)


  1. 1.
    Hoffmann MR, Martin ST, Choi WY, Bahnemann DW (1995) Environmental applications of semiconductor photocatalysis. Chem Rev 95:69–96CrossRefGoogle Scholar
  2. 2.
    Li H, Shang J, Ai ZH, Zhang LZ (2015) Efficient visible light nitrogen fixation with BiOBr nanosheets of oxygen vacancies on the exposed 001 facets. J Am Chem Soc 137:6393–6399CrossRefGoogle Scholar
  3. 3.
    Kubacka A, Fernandez-Garcia M, Colon G (2012) Advanced nanoarchitectures for solar photocatalytic applications. Chem Rev 112:1555–1614CrossRefGoogle Scholar
  4. 4.
    Dahl M, Liu YD, Yin YD (2014) Composite titanium dioxide nanomaterials. Chem Rev 114:9853–9889CrossRefGoogle Scholar
  5. 5.
    Fujishima A, Honda K (1972) Electrochemical photolysis of water at a semiconductor electrode. Nature 238:37–38CrossRefGoogle Scholar
  6. 6.
    Yao XJ, Wang XD, Su L, Yan H, Yao M (2011) Band structure and photocatalytic properties of N/Zr co-doped anatase TiO2 from first-principles study. J Mol Catal A Chem 351:11–16CrossRefGoogle Scholar
  7. 7.
    Zhao L, Chen XF, Wang XC, Zhang YJ, Wei W, Sun YH, Antonietti M, Titirici MM (2010) One-step solvothermal synthesis of a carbon@TiO2 dyade structure effectively promoting visible-light photocatalysis. Adv Mater 22:3317–3321CrossRefGoogle Scholar
  8. 8.
    Chen XB, Shen SH, Guo LJ, Mao SS (2010) Semiconductor-based photocatalytic hydrogen generation. Chem Rev 110:6503–6570CrossRefGoogle Scholar
  9. 9.
    Wang DH, Gao GQ, Zhang YW, Zhou LS, Xu AW, Chen W (2012) Nanosheet-constructed porous BiOCl with dominant 001 facets for superior photosensitized degradation. Nanoscale 4:7780–7785CrossRefGoogle Scholar
  10. 10.
    Kudo A, Miseki Y (2009) Heterogeneous photocatalyst materials for water splitting. Chem Soc Rev 38:253–278CrossRefGoogle Scholar
  11. 11.
    Wang MY, Sun L, Lin ZQ, Cai JH, Xie KP, Lin CJ (2013) p-n Heterojunction photoelectrodes composed of Cu2O-loaded TiO2 nanotube arrays with enhanced photoelectrochemical and photoelectrocatalytic activities. Energy Environ Sci 6:1211–1220CrossRefGoogle Scholar
  12. 12.
    Li WB, Feng C, Dai SY, Yue JG, Hua FX, Hou H (2015) Fabrication of sulfur-doped g-C3N4/Au/CdS Z-scheme photocatalyst to improve the photocatalytic performance under visible light. Appl Catal B Environ 168:465–471CrossRefGoogle Scholar
  13. 13.
    Wang XW, Liu G, Wang LZ, Chen ZG, Lu GQ, Cheng HM (2012) ZnO–CdS@Cd heterostructure for effective photocatalytic hydrogen generation. Adv Energy Mater 2:42–46CrossRefGoogle Scholar
  14. 14.
    Bard AJ, Fox MA (1995) Artificial photosynthesis—solar splitting of water to hydrogen and oxygen. Acc Chem Res 28:141–145CrossRefGoogle Scholar
  15. 15.
    Li J, Xie Y, Zhong Y, Hu Y (2015) Facile synthesis of Z-scheme Ag2CO3/Ag/AgBr ternary heterostructured nanorods with improved photostability and photoactivity. J Mater Chem A 3:5474–5481CrossRefGoogle Scholar
  16. 16.
    Ma D, Wu J, Gao M, Xin Y, Ma T, Sun Y (2016) Fabrication of Z-scheme g-C3N4/RGO/Bi2WO6 photocatalyst with enhanced visible-light photocatalytic activity. Chem Eng J 290:136–146CrossRefGoogle Scholar
  17. 17.
    Wang JC, Yao HC, Fan ZY, Zhang L, Wang JS, Zang SQ, Li ZJ (2016) Indirect Z-Scheme BiOl/g-C3N4 photocatalysts with enhanced photoreduction CO2 activity under visible light irradiation. ACS Appl Mater Interfaces 8:3765–3775CrossRefGoogle Scholar
  18. 18.
    Aguirre ME, Zhou R, Eugene AJ, Guzman MI, Grela MA (2017) Cu2O/TiO2 heterostructures for CO2 reduction through a direct Z-scheme: protecting Cu2O from photocorrosion. Appl Catal B Environ 217:485–493CrossRefGoogle Scholar
  19. 19.
    Chen F, Yang Q, Li XM, Zeng GM, Wang DB, Niu CG, Zhao JW, An HX, Xie T, Deng YC (2017) 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 Environ 200:330–342CrossRefGoogle Scholar
  20. 20.
    Ke L, Li P, Wu X, Jiang S, Luo M, Liu Y, Le Z, Sun C, Song S (2017) Graphene-like sulfur-doped g-C3N4 for photocatalytic reduction elimination of UO22+ under visible light. Appl Catal B Environ 205:319–326CrossRefGoogle Scholar
  21. 21.
    Lan ZA, Zhang GG, Wang XC (2016) A facile synthesis of Br-modified g-C3N4 semiconductors for photoredox water splitting. Appl Catal B Environ 192:116–125CrossRefGoogle Scholar
  22. 22.
    Lu XL, Xu K, Chen PZ, Jia KC, Liu S, Wu CZ (2014) Facile one step method realizing scalable production of g-C3N4 nanosheets and study of their photocatalytic H-2 evolution activity. J Mater Chem A 2:18924–18928CrossRefGoogle Scholar
  23. 23.
    Wang F, Chen P, Feng Y, Xie Z, Liu Y, Su Y, Zhang Q, Wang Y, Yao K, Lv W, Liu G (2017) Facile synthesis of N-doped carbon dots/g-C3N4 photocatalyst with enhanced visible-light photocatalytic activity for the degradation of indomethacin. Appl Catal B Environ 207:103–113CrossRefGoogle Scholar
  24. 24.
    Zhu M, Zhai C, Sun M, Hu Y, Yan B, Du Y (2017) Ultrathin graphitic C3N4 nanosheet as a promising visible-light-activated support for boosting photoelectrocatalytic methanol oxidation. Appl Catal B Environ 203:108–115CrossRefGoogle Scholar
  25. 25.
    Ye LQ, Zan L, Tian LH, Peng TY, Zhang JJ (2011) The 001 facets-dependent high photoactivity of BiOCl nanosheets. Chem Commun 47:6951–6953CrossRefGoogle Scholar
  26. 26.
    Zhang KL, Liu CM, Huang FQ, Zheng C, Wang WD (2006) Study of the electronic structure and photocatalytic activity of the BiOCl photocatalyst. Appl Catal B Environ 68:125–129CrossRefGoogle Scholar
  27. 27.
    Zhao S, Zhang Y, Zhou Y, Zhang C, Sheng X, Fang J, Zhang M (2017) Reactable polyelectrolyte-assisted synthesis of BiOCl with enhanced photocatalytic activity. ACS Sustain Chem Eng 5:1416–1424CrossRefGoogle Scholar
  28. 28.
    Fu XQ, Sheng XL, Zhou YM, Fu ZW, Zhao S, Zhang ZW, Zhang YW (2016) Ultrasonic/microwave synergistic synthesis of well-dispersed hierarchical zeolite Y with improved alkylation catalytic activity. Korean J Chem Eng 33:1931–1937CrossRefGoogle Scholar
  29. 29.
    Lei FC, Sun YF, Liu KT, Gao S, Liang L, Pan BC, Xie Y (2014) Oxygen vacancies confined in ultrathin indium oxide porous sheets for promoted visible-light water splitting. J Am Chem Soc 136:6826–6829CrossRefGoogle Scholar
  30. 30.
    Ma M, Zhang K, Li P, Jung MS, Jeong MJ, Park JH (2016) Dual oxygen and tungsten vacancies on a WO3 photoanode for enhanced water oxidation. Angew Chem Int Edit 55:11819–11823CrossRefGoogle Scholar

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Chemistry and Chemical EngineeringSoutheast University, Jiangsu Optoelectronic Functional Materials and Engineering LaboratoryNanjingPeople’s Republic of China

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