Self-Assembly of Large Scale CdS/TiO₂ Film Photocatalyst

Abstract:

CdS/TiO₂ composite films with different Cd:Ti atomic ratio were prepared by a new straightforward particulate layer-by-layer method. Titanium dihydroxide and thiourea were used as precursors. Raman and X-ray photoelectron spectroscopy analysis for the composite films revealed that the TiO₂ formed from titanium precursor retarded the crystal growth of CdS. Luminescence and UV–vis absorption spectra investigation showed that emission and absorption band of CdS/TiO₂ blue shifted as crystal size of CdS decreased. Furthermore, hydrogen formation curves revealed that hydroxyl of CdS/TiO₂ films plays an important role in water splitting reaction under both UV and visible light irradiations.

• Periodical: Advanced Materials Research (Volumes 512-515)
• Pages: 1692-1698
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.512-515.1692
• Online since: May 2012
• Authors: Chun Xiang Li, Zhao Hua Jiang, Zhong Ping Yao
• Keywords: CdS /TiO₂, Crystal Size, Luminescence, Photoreduction, RAMAN

References

[1] P. Brown and P.V. Kamat: J. Am. Chem. Soc. Vol. 130 (2008), p.8890.

[2] H.G. Kim, P.H. Borse, W. Choi and J.S. Lee: Angew Chem. Int. Ed. Vol. 44 (2005), p.4585.

[3] W.F. Shangguan and A. Yoshida: J. Phys. Chem. B Vol. 106 (2002), p.12227.

[4] W.F. Shangguan and A. Yoshida: J. Phys. Chem. B Vol. 106 (2002), p.12227.

[5] S. Chen, M. Paulose, C. Ruan, G.K. Mor, O.K. Varghese, D. Kouzoudis and C.A. Grimes: J. Photochem. Photobiol. A: Chem. Vol. 177 (2006), p.177.

[6] J.S. Jang, H.G. Kim, P.H. Borse and J.S. Lee: Int. J. Hydrogen Energy Vol. 32 (2007), p.4786.

[7] J.S. Jang, H.G. Kim, U.A. Joshi, J.W. Jang and J.S. Lee: Int. J. Hydrogen Energy Vol. 33 (2008), p.5975.

[8] C.X. Li, K.P. O'Halloran, H.Y. Ma and S.L. Shi: J. Phys. Chem. B Vol. 113 (2009), p.8043.

[9] Q.G. Zeng, Z.J. Ding and Z.M. Zhang: J. Lumin. Vol. 118 (2006), p.301.

[10] V. Singh and P. Chauhan: Chalcogenide Lett. Vol. 6 (2009), p.421.

[11] T. Tanaka, K. Teramura, T. Yamamoto, S. Takenaka, S. Yoshida and T. Funabiki: J. Photochem. Photobio. A Vol. 148 (2002), p.277.

[12] N. Mahdjoub, N. Allen, P. Kelly and V. Vishnyakov: J. Photochem. Photobio. A Vol. 211 (2010), p.59.

[13] G. Gouadec and P. Colomban: Prog. Cryst. Growth Charact. Mater. Vol. 53 (2007), p.1.

[14] G. Hota, S.B. Idage and K.C. Khilar: Colloids Surfaces A Vol. 293 (2007), p.5.

[15] C.X. Li, Z.H. Jiang and Z.P. Yao: Dalton Trans. Vol. 39 (2010), p.10692.

[16] M. Vijay, V. Selvarajan, K.P. Sreekumar, J.G. Yu, S.W. Liu and P.V. Ananthapadmanabhan: Sol. Energy Mat. Sol. C. Vol. 93 (2009), p.1540.

[17] D. Deng, M.M. Shi, F. Chen, L. Chen, X.X. Jiang and H.Z. Chen: Sol. Energy Vol. 84 (2010), p.771.

[18] A.R. Loukanov, C.D. Dushkin, K.I. Papazova, A.V. Kirov, M.V. Abrashev and E. Adachi: Colloids Surfaces A Vol. 245 (2004), p.9.

DOI: 10.1016/j.colsurfa.2004.06.016

[19] Z. Yu, J. Li, D.B. O'Connor, L.W. Wang and P.F. Barbara: J. Phys. Chem. B Vol. 107 (2003), p.5670.

[20] M. Maleki, M.S. Ghamsari, S. Mirdamadi and R. Ghasemzadeh: Quantum Electr. Optoele. Vol. 10 (2007), p.30.

[21] K.R. Gopidas, M. Bohorquez and P. V. Kamat: J. Phys. Chem. Vol. 94 (1990), p.6435.

[22] S.H. Szezepankiewicz, A.J. Colussi and M. R. Hoffmann: J. Phys. Chem. B Vol. 104 (2000), p.9842.