Characterization of Y/TiO₂ Nanoparticles and their Reactivity for CO₂ Photoreduction

Abstract:

A series of Y/TiO₂ nanoparticles (NPs) were synthesized via sol-gel method. The crystal structures, morphologies and chemical properties were characterized using X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XPS). We investigated the effects of different doping amounts of Y on the reaction of CO₂ photoreduction. The results shown that 0.1 wt.%Y/TiO₂ (0.1YT) performed the highest photocatalytic activity, which yielded 384.62 µmol/g∙cat. formaldehyde after 6 h of UV illumination.

• Periodical: Applied Mechanics and Materials (Volumes 55-57)
• Pages: 1506-1510
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.55-57.1506
• Online since: May 2011
• Authors: Jing Wei, Xin Tan, Tao Yu, Lin Zhao
• Keywords: Carbon Dioxide CO₂, Formaldehyde, Photoreduction, TiO₂, Yttrium

References

[1] K. Koci, K. Mateju, L. Obalova, et al: Appl. Catal. B-Environ. Vol. 96 (2010), p.239.

[2] G. Colón, M. Maicu, M. C. Hidalgo, et al: Appl. Catal. B-Environ. Vol. 67 (2006), p.41.

[3] T. Nguyen, J. C. S. Wu, C. Chiou: Catal. Commun. Vol. 9 (2008), p. (2073).

[4] I. Tseng, W. Chang, J. C. S. Wu: Appl. Catal. B-Environ. Vol. 37 (2002), p.37.

[5] Y. Xu, D. Liang, M. Liu, et al: Mater. Res. Bull. Vol. 43(2008), p.3474.

[6] T. Yu, X. Tan, L. Zhao, et al: Chem. Eng. J. Vol. 157 (2010), p.86.

[7] S. Ohya, S. Kaneco, H. Katsumata, et al: Catal. Today Vol. 148 (2009), p.329.

[8] Slamet, H. W. Nasution, E. Purnama, et al: Catal. Commun. Vol. 6 (2005), p.313.

[9] K. Adachi, K. Ohta, T. Mizuno: Sol. Energy Vol. 53 (1994), p.187.

[10] R. A. Spurr, H. Myers: Anal. Chem. Vol. 29 (1957), p.760.

[11] V. Stengl, S. Bakardjieva, N. Murafa: Mater. Chem. Phys. Vol. 114 (2009), p.217.

[12] Z.L. Liu, Z.L. Cui, Z.K. Zhang: Mater. Charact. Vol. 54 (2005), p.123.