Characterization of Porous SiO2-TiO2 Photocatalyst and the Effect of PEG1000 Concentration

Li Li1; Tingting Hu1; Wenjie Zhang1; Hongbo He2

doi:10.14233/ajchem.2014.15389

Issue

Vol. 26 No. 2 (2014): Vol 26 Issue 2

Issue Published : January 15, 2014

This work is licensed under a Creative Commons Attribution 4.0 International License.

Characterization of Porous SiO2-TiO2 Photocatalyst and the Effect of PEG1000 Concentration

https://doi.org/10.14233/ajchem.2014.15389

Li Li1

1School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, P.R. China 2Institute of Applied Ecology, The Chinese Academy of Sciences, Shenyang 110016, P.R. China *Corresponding authors: Tel: +86 24 83978969; E-mail: wjzhang@aliyun.com; hehongbo@iae.ac.cn

Tingting Hu1

Wenjie Zhang1

Hongbo He2

Asian Journal of Chemistry, Vol. 26 No. 2 (2014): Vol 26 Issue 2
Article Published : January 16, 2014

Abstract

A porous SiO₂-TiO₂ photocatalyst was prepared through co-sol-gel method for photocatalytic degradation of methyl orange. PEG1000 was used as a template to induce porous structure in the material. Photocatalytic degradation was conducted after adsorption equilibrium to identify the contribution of both adsorption and photocatalytic degradation. The prepared material was composed of anatase TiO₂ and amorphous SiO₂. Many small particles formed during grinding also scattered on the surface. The average pore diameter is 16.89 nm and the total pore volume is 0.3644 cm³ g^-1 along with specific surface area of 86.27 m² g^-1, as calculated by using BJH and BET methods. The SiO₂-TiO₂ composite may have the maximum photocatalytic activity and adsorption capacity using 0.04 mol/L of PEG1000 in the precursor.

Keywords

TiO2 SiO2 Photocatalysis Composite.

Li1, L., Hu1, T., Zhang1, W., & He2, H. (2014). Characterization of Porous SiO2-TiO2 Photocatalyst and the Effect of PEG1000 Concentration. Asian Journal of Chemistry, 26(2), 357–359. https://doi.org/10.14233/ajchem.2014.15389

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References

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M.R. Hoffmann, S.T. Martin, W. Choi and W. Bahnemann, Chem. Rev., 95, 69 (1995); doi:10.1021/cr00033a004.

A. Fujishima, T.N. Rao and D.A. Tryk, J. Photochem. Photobiol. Chem.C, 1, 1 (2000); doi: 10.1016/S1389-5567(00)00002-2.

M.I. Litter, Appl. Catal. B, 23, 89 (1999); doi:10.1016/S0926-3373(99)00069-7.

Q.Y. Li, K. Wang, S.L. Zhang, M. Zhang, J.J. Yang and Z.S. Jin, J. Mol. Catal. A, 258, 83 (2006); doi:10.1016/j.molcata.2006.05.030.

H.M. Sung-Suh, J.R. Choi, H.J. Hah, S.M. Koo and Y.C. Bae, J. Photochem. Photobiol. A, 163, 37 (2004); doi:10.1016/S1010-6030(03)00428-3.

W.C. Hung, Y.C. Chen, H. Chu and T.K. Tseng, Appl. Surf. Sci., 255, 2205 (2008); doi:10.1016/j.apsusc.2008.07.079.

J.X. Jiao, Q. Xu and L. Li, J. Colloid Interf. Sci., 316, 596 (2007); doi:10.1016/j.jcis.2007.08.056.

B. Neppolian, Q.L. Wang, H. Yamashita and H. Choi, Appl. Catal. A, 333, 264 (2007); doi:10.1016/j.apcata.2007.09.026.

M.R. Bayati, A.Z. Moshfegh, F. Golestani-Fard and R. Molaei, Mater. Chem. Phys., 124, 203 (2010); doi:10.1016/j.matchemphys.2010.06.020.

X.D. Su, J.Z. Zhao, Y.L. Li, Y.C. Zhu, X.K. Ma, F. Sun and Z.C. Wang, Colloids Surf. A Physicochem. Eng. Asp., 349, 151 (2009); doi:10.1016/j.colsurfa.2009.08.011.

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Issue

Vol. 26 No. 2 (2014): Vol 26 Issue 2

Characterization of Porous SiO2-TiO2 Photocatalyst and the Effect of PEG1000 Concentration

Abstract

Keywords

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