References

  1. Y.P. Li, F.T. Li, X.J. Wang, J. Zhao, J.N. Wei, Y.J. Hao, Y. Liu, Z-scheme electronic transfer of quantum-sized
    a-Fe2O3 modified g-C3N4 hybrids for enhanced photocatalytic hydrogen production, Int. J. Hydrogen Energy, 42 (2017) 28327–28336.
  2. A. Umar, M.S. Akhtar, M.S. Al-Assiri, A.E. Al-Salami, S.H. Kim, Composite CdO-ZnO hexagonal nanocones: efficient materials for photovoltaic and sensing applications, Ceram. Int., 44 (2018) 5017–5024.
  3. M.J. Kang, H. Yu, W. Lee, H.G. Cha, Efficient Fe2O3/Cg-C3N4 Z-scheme heterojunction photocatalyst prepared by facile one-step carbonizing process, J. Phys. Chem. Solids, 130 (2019) 93–99.
  4. D. Hao, Y. Liu, S. Gao, H. Arandiyan, X. Bai, Q. Kong, J.B. Ni, Emerging artificial nitrogen cycle processes through novel electrochemical and photochemical synthesis, Mater. Today, 46 (2021) 212–233.
  5. S. Kamal, S. Balu, S. Palanisamy, K. Uma, V. Velusamy, T.C. Yang, Synthesis of boron doped C3N4/NiFe2O4 nanocomposite: an enhanced visible light photocatalyst for the degradation of methylene blue, Results Phys., 12 (2019) 1238–1244.
  6. S. Ghattavi, A. Nezamzadeh-Ejhieh, A visible light driven AgBr/g-C3N4 photocatalyst composite in methyl orange photodegradation: focus on photoluminescence, mole ratio, synthesis method of g-C3N4 and scavengers, Composites, Part B, 183 (2020) 107712, doi: 10.1016/j.compositesb.2019.107712.
  7. T.D. Pham, B.K. Lee, Selective removal of polar VOCs by novel photocatalytic activity of metals co-doped
    TiO2/PU under visible light, Chem. Eng. J., 307 (2017) 63–73.
  8. R. Sun, Q. Shi, M. Zhang, L. Xie, J. Chen, X. Yang, W. Zhao, Enhanced photocatalytic oxidation of toluene with a coral-like direct Z-scheme BiVO4/g-C3N4 photocatalyst, J. Alloys Compd., 714 (2017) 619–626.
  9. S. Sun, C. Ji, L. Wu, S. Chi, R. Qu, Y. Li, Z. Xue, Facile onepot construction of a-Fe2O3/g-C3N4 heterojunction for arsenic removal by synchronous visible light catalysis oxidation and adsorption, Mater. Chem. Phys., 194 (2017) 1–8.
  10. S.-M. Lam, J.-C. Sin, A.R. Mohamed, A review on photocatalytic application of g-C3N4/semiconductor (CNS) nanocomposites towards the erasure of dyeing wastewater, Mater. Sci. Semicond. Process., 47 (2016) 62–84.
  11. W. Zhang, C. Xu, E. Liu, J. Fan, X. Hu, Facile strategy to construction Z-scheme ZnCo2O4/g-C3N4 photocatalyst with efficient H2 evolution activity, Appl. Surf. Sci., 515 (2020) 146039, doi: 10.1016/j.apsusc.2020.146039.
  12. D. Hao, C. Liu, X. Xu, M. Kianinia, I. Aharonovich, X. Bai, J.B. Ni, Surface defect-abundant one-dimensional graphitic carbon nitride nanorods boost photocatalytic nitrogen fixation, New J. Chem., 44 (2020) 20651–20658.
  13. D. Hao, J. Ren, Y. Wang, H. Arandiyan, M. Garbrecht, X. Bai, J.B. Ni, A green synthesis of Ru modified g-C3N4 nanosheets for enhanced photocatalytic ammonia synthesis, Energy Mater. Adv., 2021 (2021) 9761263, doi:10.34133/2021/9761263.
  14. J. Li, Y. Liu, H. Li, C. Chen, Fabrication of g-C3N4/TiO2 composite photocatalyst with extended absorption wavelength range and enhanced photocatalytic performance, J. Photochem. Photobiol., 317 (2016) 151–160.
  15. P.Y. Kuang, Y.Z. Su, G.F. Chen, Z. Luo, S.Y. Xing, N. Li, Z.Q. Liu, g-C3N4 decorated ZnO nanorod arrays for enhanced photoelectrocatalytic performance, Appl. Surf. Sci., 358 (2015) 296–303.
  16. S. Balu, S. Velmurugan, S. Palanisamy, S.W. Chen, V. Velusamy, T.C. Yang, E.S.I. El-Shafey, Synthesis of a-Fe2O3 decorated g-C3N4/ZnO ternary Z-scheme photocatalyst for degradation of tartrazine dye in aqueous media,
    J. Taiwan Inst. Chem. Eng., 99 (2019) 258–267.
  17. J.-C. Wang, L. Zhang, W.-X. Fang, J. Ren, Y.-Y. Li, H.-C. Yao, J.-S. Wang, Z.-J. Li, Enhanced photoreduction CO2 activity over direct Z-scheme a-Fe2O3/Cu2O heterostructures under visible light irradiation, ACS Appl. Mater. Interfaces, 7 (2015) 8631–8639.
  18. M. Hjiri, Highly sensitive NO2 gas sensor based on hematite nanoparticles synthesized by sol–gel technique,
    J. Mater. Sci.: Mater. Electron., 31 (2020) 5025–5031.
  19. Y. Zhang, Y.A. Thomas, M. Antonietti, X. Wang, Activation of carbon nitride solids by protonation: morphology changes, enhanced ionic conductivity, and photoconduction experiments, J. Am. Chem. Soc., 131 (2009) 50–51.
  20. F. Dong, L. Wu, Y. Sun, M. Fu, Z. Wu, S.C. Lee, Efficient synthesis of polymeric g-C3N4 layered materials as novel efficient visible light driven photocatalysts, J. Mater. Chem., 21 (2011) 15171–15174.
  21. J. Liu, Y. Zhang, L. Lu, G. Wu, W. Chen, Self-regenerated solardriven photocatalytic water-splitting by urea derived graphitic carbon nitride with platinum nanoparticles, Chem. Commun., 48 (2012) 8826–8828.
  22. Y. Xu, M.A. Schoonen, The absolute energy positions of conduction and valence bands of selected semiconducting minerals, Am. Mineral., 85 (2000) 543–556.
  23. N. Raeisi-Kheirabadi, A. Nezamzadeh-Ejhieh, A Z-scheme g-C3N4/Ag3PO4 nanocomposite: Its photocatalytic activity and capability for water splitting, Int. J. Hydrogen Energy, 45 (2020) 33381–33395.
  24. K. Uma, N. Arjun, G.T. Pan, T C.K. Yang, The photodeposition of surface plasmon Ag metal on SiO2@a-Fe2O3 nanocomposites sphere for enhancement of the photo-Fenton behavior, Appl. Surf. Sci., 425 (2017) 377–383.
  25. F. Wang, Y. Feng, P. Chen, Y. Wang, Y. Su, Q. Zhang, G. Liu, Photocatalytic degradation of fluoroquinolone antibiotics using ordered mesoporous g-C3N4 under simulated sunlight irradiation: kinetics, mechanism, and antibacterial activity elimination, Appl. Catal., B, 227 (2018) 114–122.
  26. X. Yan, R. Xu, J. Guo, X. Cai, D. Chen, L. Huang, S. Tan, Enhanced photocatalytic activity of Cu2O/g-C3N4 heterojunction coupled with reduced graphene oxide three-dimensional aerogel photocatalysis, Mater. Res. Bull., 96 (2017) 18–27.
  27. D. Li, J. Zan, L. Wu, S. Zuo, H. Xu, D. Xia, Heterojunction tuning and catalytic efficiency of g-C3N4–Cu2O with glutamate, Ind. Eng. Chem. Res., 58 (2019) 4000–4009.
  28. A. Rufus, N. Sreeju, D. Philip, Synthesis of biogenic hematite (a-Fe2O3) nanoparticles for antibacterial and nanofluid applications, RSC Adv., 6 (2016) 94206–94217.
  29. F.T.L. Muniz, M.A.R. Miranda, C. Morilla dos Santos, J.M. Sasaki, The Scherrer equation and the dynamical theory of X-ray diffraction, Acta Crystallogr., Sect. A: Found. Crystallogr., 72 (2016) 385–390.
  30. W. Ning, T. Wang, H. Chen, X. Yang, Y. Jin, The effect of Fe2O3 crystal phases on CO2 hydrogenation, PLoS One, 12 (2017) e0182955, doi: 10.1371/journal.pone.0182955.
  31. L. Lu, G. Wang, M. Zou, J. Wang, J. Li, Effects of calcining temperature on formation of hierarchical TiO2/g-C3N4 hybrids as an effective Z-scheme heterojunction photocatalyst, Appl. Surf. Sci., 441 (2018) 1012–1023.
  32. F. Zhang, X. Li, Q. Zhao, Q. Zhang, M. Tadé, S. Liu, Fabrication of a-Fe2O3/In2O3 composite hollow microspheres: a novel hybrid photocatalyst for toluene degradation under visible light, J. Colloid Interface Sci., 457 (2015) 18–26.
  33. J. Tauc, R. Grigorovici, A. Vancu, Optical properties and electronic structure of amorphous germanium, Phys. Status Solidi B, 15 (1966) 627–637.
  34. D. Xiao, K. Dai, Y. Qu, Y. Yin, H. Chen, Hydrothermal synthesis of a-Fe2O3/g-C3N4 composite and its efficient photocatalytic reduction of Cr(VI) under visible light, Appl. Surf. Sci., 358 (2015) 181–187.
  35. T. Montalvo‐Herrera, D. Sánchez‐Martínez, D.B. Hernandez-Uresti, E. Zarazua‐Morin, Facile preparation of KBiO3/g‐C3N4 composites with microwave irradiation for photocatalytic hydrogen production, J. Chem. Technol. Biotechnol., 94 (2019) 3440–3446.
  36. A.E.A. Bakr, W.M. El Rouby, M.D. Khan, A.A. Farghali, B. Xulu, N. Revaprasadu, Synthesis and characterization of Z-scheme a-Fe2O3 NTs/ruptured tubular g-C3N4 for enhanced photoelectrochemical water oxidation, J. Sol. Energy, 193 (2019) 403–412.
  37. W. Liu, L. Qiao, A. Zhu, Y. Liu, J. Pan, Constructing 2D BiOCl/C3N4 layered composite with large contact surface for visiblelight- driven photocatalytic degradation, Appl. Surf. Sci., 426 (2017) 897–905.
  38. X. She, J. Wu, H. Xu, J. Zhong, Y. Wang, Y. Song, P.M. Ajayan, High efficiency photocatalytic water splitting using 2D a-Fe2O3/g-C3N4 Z‐scheme catalysts, Adv. Energy Mater., 7 (2017) 1700025, doi:10.1002/aenm.201700025.
  39. Y. Su, P. Chen, F. Wang, Q. Zhang, T. Chen, Y. Wang, K. Yao, W. Lv, G. Liu, Decoration of TiO2/gC3N4 Z-scheme by carbon dots as a novel photocatalyst with improved visible-light photocatalytic performance for the degradation of enrofloxacin, RSC Adv., 7 (2017) 34096–34103.
  40. K.C. Christoforidis, T. Montini, E. Bontempi, S. Zafeiratos, J.J.D. Jaén, P. Fornasiero, Synthesis and photocatalytic application of visible-light active b-Fe2O3/g-C3N4 hybrid nanocomposites, Appl. Catal., B, 187 (2016) 171–180.