The influence of experimental conditions on photocatalytic degradation of methylene blue using titanium dioxide particle
- 41 Downloads
In this research, the photocatalytic degradation of methylene blue (MB) as a dye pollutant was investigated in the presence of commercial TiO2 particles. The physical and optical characteristics of commercial TiO2 were examined by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), and UV diffuse reflection spectroscopy (UV–DRS) techniques. In addition, the influence of different operating parameters such as catalyst loading, pH value, and temperature on the photodegradation efficiency was evaluated. The results showed that the commercial TiO2 had an anatase phase with a surface area of 9.85 m2/g and a pore size of 85 Å; its absorbance spectrum was found to be 388 nm in the UV range involving a band gap of 3.2 eV. Besides, the optimized conditions for the highest photocatalytic activity of commercial TiO2 were 0.7 g/L of TiO2 catalyst and pH 3.0 under 50 °C of temperature, which acheived ~99% of MB removal.
KeywordsTitanium dioxide Photocatalyst Photodegradation Methylene blue
- 1.Hussain, S., Maqbool, Z., Ali, S., Yasmeen, T., Imran, M., Mahmood, F., Abbas, F.: Biodecolorization of reactive black-5 by a metal and salt tolerant bacterial strain Pseudomonas sp. RA20 isolated from Paharang drain effluents in Pakistan. Ecotoxicol Environ Saf. 98, 331–338 (2013)CrossRefGoogle Scholar
- 4.Hassena, H.: Photocatalytic degradation of methylene blue by using Al2O3/Fe2O3 nano composite under visible light. Mod Chem Appl. 4, 176 (2016)Google Scholar
- 5.Hahn, G.M., Shiu, E.C., West, B., Goldstein, L., Li, G.C.: Mechanistic implications of the induction of thermotolerance in Chinese hamster cells by organic solvents. Cancer Res. 45, 4138–4143 (1985)Google Scholar
- 7.Kruanetr, S., Tan-Arsa, N., Wanchanthuek, R.: The study of methylene blue removal by using mixed TiO2 as a catalyst under solar light irradiation. Int J Sci Res Publ. 3, 1–7 (2013)Google Scholar