| Synthesis and Characterization of Crystalline Graphene-Titania Nanocomposites as Efficient Photocatalysts for Pollution Control |
K.M. Rajesh1,*, , S. Laxmi Priya1,, S. Rijith2,, K. Jithesh3,, V. Arun4, and S. Sugunan5, |
1Post Graduate and Research Department of Chemistry, Sree Narayana College, Nattika-680566, India
2Post Graduate and Research Department of Chemistry, Sree Narayana College, Kollam-695101, India
3Post Graduate and Research Department of Chemistry, Sree Narayana College, Kannur-670007, India
4Post Graduate Department of Chemistry, Sree Narayana College, Punalur-691305, India
5Department of Applied Chemistry, Cochin University of Science and Technology, Cochin-682022, India
*Corresponding author: E-mail: rajeshkmamangalam@gmail.com |
| Abstract
Titanium dioxide (TiO2) is reported to exhibit high degradation efficiency to degrade organic water pollutants without any decomposition thereby acting as an excellent photocatalyst. The catalytic performance of pure TiO2 (T1) can even be enhanced by incorporating graphene forming graphene-TiO2 (GT1) nanocomposite. We suggest, a modified sol-gel method for synthesizing T1 and GT1 nanocomposites and they were characterized by XRD, FTIR, UV-visible spectra, TEM and XPS techniques. The removal efficiency of organic dye, methylene blue, was investigated by the photocatalytic degradation efficiency of GT1 nanocomposite under daylight irradiation. Degradation studies revealed that more than 90% methylene blue dye removal was achieved with 3 mg GT1 with an initial concentration of 10-4 M under an irradiation time of 1 h. |
| Keywords
Photocatalytic performance, Graphene-titania nanocomposite, Methylene blue dye, Pollution control. |
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