© The Institution of Engineering and Technology
CdS and ZnS co-sensitised one-dimensional TiO2 nanofibres were successfully prepared by a combination of electrospinning and successive ionic layer adsorption and reaction (SILAR) process because both electrospinning and SILAR method are inexpensive and scalable techniques. The composites of CdS-ZnS/TiO2 heterojunctions were compared with electrode containing only CdS being superior in terms of photoelectrochemical tests. The results showed that the photocurrent of CdS-ZnS/TiO2 nanofibres was seven times than that of CdS/TiO2 nanofibres and seven times than that of pure TiO2 nanofibres. The increased photocurrent is depended on the preparation order of ZnS and CdS on TiO2 nanofibres.
References
-
-
1)
-
12. Yang, L., Li, Z., Jiang, H., et al: ‘Photoelectrocatalytic oxidation of bisphenol A over mesh of TiO2/graphene/Cu2O’, Appl. Catal. B Environ., 2016, 183, pp. 75–85 (doi: 10.1016/j.apcatb.2015.10.023).
-
2)
-
14. Daskalaki, V.M., Antoniadou, M., Li Puma, G., et al: ‘Solar light-responsive Pt/CdS/TiO2 photocatalysts for hydrogen production and simultaneous degradation of inorganic or organic sacrificial agents in wastewater’, Environ. Sci. Technol., 2010, 44, (19), pp. 7200–7205 (doi: 10.1021/es9038962).
-
3)
-
16. Kang, Q., Yang, L., Chen, Y., et al: ‘Photoelectrochemical detection of pentachlorophenol with a multiple hybrid CdSexTe1−x/TiO2 nanotube structure-based label-free immunosensor’, Anal. chemistry, 2010, 82, (23), pp. 9749–9754 (doi: 10.1021/ac101798t).
-
4)
-
11. Peining, Z., Nair, A.S., Shengjie, P., et al: ‘Facile fabrication of TiO2–graphene composite with enhanced photovoltaic and photocatalytic properties by electrospinning’, ACS Appl. Mater. Interfaces, 2012, 4, (2), pp. 581–585 (doi: 10.1021/am201448p).
-
5)
-
4. Liao, J., Lin, S., Zhang, L., et al: ‘Photocatalytic degradation of methyl orange using a TiO2/Ti mesh electrode with 3D nanotube arrays’, ACS Appl. Mater. Interfaces, 2011, 4, (1), pp. 171–177 (doi: 10.1021/am201220e).
-
6)
-
1. Fujishima, A., Honda, K.: ‘Electrochemical photolysis of water at a semiconductor electrode’, Nature, 1972, 238, (238), pp. 8–37.
-
7)
-
7. Liu, J., Bai, H., Wang, Y., et al: ‘Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications’, Adv. Funct. Mater., 2010, 20, (23), pp. 4175–4181 (doi: 10.1002/adfm.201001391).
-
8)
-
17. Park, H., Choi, W., Hoffmann, M.R.: ‘Effects of the preparation method of the ternary CdS/TiO2/Pt hybrid photocatalysts on visible light-induced hydrogen production’, J. Mater. Chem., 2008, 18, (20), pp. 2379–2385 (doi: 10.1039/b718759a).
-
9)
-
18. Yang, L., Luo, S., Liu, R., et al: ‘Fabrication of CdSe nanoparticles sensitized long TiO2 nanotube arrays for photocatalytic degradation of anthracene-9-carbonxylic acid under green monochromatic light’, J. Phys. Chem. C, 2010, 114, (11), pp. 4783–4789 (doi: 10.1021/jp910489h).
-
10)
-
3. Fang, J., Xu, L., Zhang, Z., et al: ‘Au@TiO2–CdS ternary nanostructures for efficient visible-light-driven hydrogen generation’, ACS Appl. Mater. Interfaces, 2013, 5, (16), pp. 8088–8092 (doi: 10.1021/am4021654).
-
11)
-
13. Li, Y., Luo, S., Wei, Z., et al: ‘Electrodeposition technique-dependent photoelectrochemical and photocatalytic properties of an In2S3/TiO2 nanotube array’, Phys. Chem. Chem. Phys., 2014, 16, (9), pp. 4361–4368 (doi: 10.1039/c3cp54675f).
-
12)
-
9. Yang, H.G., Liu, G., Qiao, S.Z., et al: ‘Solvothermal synthesis and photoreactivity of anatase TiO2 nanosheets with dominant {001} facets’, J. Am. Chem. Soc., 2009, 131, (11), pp. 4078–4083 (doi: 10.1021/ja808790p).
-
13)
-
15. Yang, S.-M., Huang, C.-H., Zhai, J., et al: ‘High photostability and quantum yield of nanoporous TiO2 thin film electrodes co-sensitized with capped sulfides’, J. Mater. Chem., 2002, 12, (5), pp. 1459–1464 (doi: 10.1039/b105796k).
-
14)
-
10. Kim, I.-D., Rothschild, A., Lee, B.H., et al: ‘Ultrasensitive chemiresistors based on electrospun TiO2 nanofibres’, Nano Lett., 2006, 6, (9), pp. 2009–2013 (doi: 10.1021/nl061197h).
-
15)
-
6. Foong, T.R., Shen, Y., Hu, X., et al: ‘Template-directed liquid ALD growth of TiO2 nanotube arrays: properties and potential in photovoltaic devices’, Adv. Funct. Mater., 2010, 20, (9), pp. 1390–1396 (doi: 10.1002/adfm.200902063).
-
16)
-
2. Xiong, Z., Zhao, X.: ‘Titanate@TiO2 core-shell nanobelts with an enhanced photocatalytic activity’, J. Mater. Chem. A, 2013, 1, (26), pp. 7738–7744 (doi: 10.1039/c3ta11247k).
-
17)
-
8. Wu, J.-M., Shih, H.C., Wu, W.-T.: ‘Formation and photoluminescence of single-crystalline rutile TiO2 nanowires synthesized by thermal evaporation’, Nanotechnology, 2005, 17, (1), p. 105 (doi: 10.1088/0957-4484/17/1/017).
-
18)
-
5. Hwang, Y.J., Hahn, C., Liu, B., et al: ‘Photoelectrochemical properties of TiO2 nanowire arrays: a study of the dependence on length and atomic layer deposition coating’, ACS Nano, 2012, 6, (6), pp. 5060–5069 (doi: 10.1021/nn300679d).
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