Document Type : Original Article
Authors
1 1. Department of Physics, Sharif University of Technology, Tehran, Iran.
2 2. Department of Chemistry, Sharif University of Technology, Tehran, Iran.
3 1. Department of Physics, Sharif University of Technology, Tehran, Iran. 2. Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran.
Abstract
ZnO/g-C3N4 hybrid nanofibers containing different concentrations of g-C3N4 nanosheets were prepared using electrospinning technique; this was followed by annealing at 460 ˚C for one hour in a box furnace. Based on scanning electron microscopy (SEM) image analysis, the mean diameter of the nanofibers was measured to be ~ 55 nm. Fourier transform infrared (FTIR) spectroscopy confirmed the presence of ZnO and g-C3N4 in the prepared nanofibers. The photocatalytic activity of the nanofibers was examined under UV photoirradiation, showing that the ZCN0.5 nanofibers containing 0.5 wt% of g-C3N4 exhibited the highest performance, as compared to other photocatalysts. The observed improvement in photodegradation over the optimized photocatalyst could be due to retardation in the charge carriers’ recombination rate in the ZCN0.5 photocatalyst sample, as compared with the pure ZnO and pure g-C3N4.
Keywords
- http://www.who.int/water_sanitation_health/publications/glaas_report_2014/en/.
2. S Malato, P Fernández-Ibáñez, M I Maldonado, J Blanco, and W Gernjak, Catal. Today 147 (2009) 1.
3. A B Djurišić and Y H Leung, Small 2 (2006) 944.
4. L Ahmadkhani and R Abasi, Iran. J. Phys. Res. 17, 3 (2017) 337.
5. س صفا، م اصغری، س مختاری و ر عظیمیراد، مجلة پژوهش فیزیک ایران 17، 4 (1396) 561.
5. S Safa, M Asghari, S Mokhtari, and R Azimirad, Iran. J. Phys. Res. 17, 4 (2017) 561.
6. M Samadi, M Zirak, A Naseri, E Khorashadizade, and A Z Moshfegh, Thin Solid Films 605 (2016) 2.
7. L T Chen, U H Liao, J W Chang, S Y Lu, and D HTsai, Langmuir 34, 17 (2018) 5030.
8. M Zirak, O Moradlou, M R Bayati, Y T Nien, and A Z Moshfegh, Appl. Surf. Sci. 273 (2013) 391.
9. C B Ong, L Y Ng, and A W Mohammad, Renew. and Sust. Energy Rev. 81 (2018) 536.
10. H Yan, J Hou, Z Fu, B Yang, P Yang, K Liu, M Wen, Y Chen, S Fu, and F Li, Mater. Res. Bull. 44 (2009) 1954.
11. M Samadi, H A Shivaee, M Zanetti, A Pourjavadi, and A Moshfegh, J. Mol. Catal. A Chem. 359 (2012) 42.
12. M Samadi, A Pourjavadi, and A Z Moshfegh, Appl. Surf. Sci. 298 (2014) 147.
13. J Wen, J Xie, X Chen, and X Li, Appl. Surf. Sci. 391 (2017) 72.
14. A Naseri, M Samadi, A Pourjavadi, A Z Moshfegh, and S Ramakrishna, J. Mater. Chem. A 5 (2017) 23406.
15. X Yang, C Shao, H Guan, X Li, and J Gong , Inorg. Chem. Commun. 7 (2004) 176.
16. A Naseri, M Samadi, N M Mahmoodi, A Pourjavadi, H Mehdipour, and A Z Moshfegh, J. Phys. Chem. C 121 (2017) 3327.
17. S Yan, Z Li and Z Zou, Langmuir 25 (2009) 10397.
18. D Vogel, P Krüger, and J Pollmann, Phys. Rev. B 52 (1995) R14316.
19. M Samadi, H A Shivaee, A Pourjavadi, and A Z Moshfegh, Appl. Catal. A: General 466 (2013) 153.
20. P Sathishkumar, R Sweena, J J Wu, and S Anandan, Chem. Eng. J. 171 (2011) 136.
21. G Liu, P Niu, C Sun, S C Smith, Z Chen, and H M Cheng, J. Am. Chem. Soc. 132 (2010) 11642.
22. P Du, A Bueno-López, M. Verbaas, A R Almeida, M Makkee, J A Moulijn, and G Mul, J. Catal. 260 (2008) 75.
23. M Samadi, M Zirak, A Naseri, M Kheirabadi, M Ebrahimi, and A Z Moshfegh, Res. Chem. Intermediate 45, 4 (2019) 2197.
24. X Lu, G Wang, S Xie, J Shi, W Li, Y Tong, and Y Li, Chem. Commun. 48 (2012) 7717.
25. S Baruah, M A Mahmood, M T Z Myint, T Bora, and J Dutta, Beilstein J Nanotechnol 1 (2010) 14.
26. R Mohan, K Krishnamoorthy, and S J Kim, Chem. Phys. Lett. 539 (2012) 83-88.
27. M Ebrahimi, S Yousefzadeh, M Samadi, C Dong, J Zhang, and A Z Moshfegh, Appl. Surf. Sci. 435 (2018) 108.
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