Photocatalytic Degradation of Methylene Blue and Methyl Orange over TiO₂ Powder Synthesized via the Solvothermal Method

Abstract:

Titanium dioxide (TiO₂) powder was synthesized via the solvothermal method. Titanium isopropoxide (C₁₂H₂₈O₄Ti), ammonium hydroxide (NH₄OH) and nitric acid (HNO₃) were used as the starting materials. The mixed solution was diluted with ethanol (C₂H₅OH) and heated at 100°C for 5h in a Teflon–lined stainless steel autoclave vessel. The phase transition of TiO₂ powder was studied by X–ray diffraction (XRD). The morphology and chemical composition of TiO₂ powder were investigated by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The photocatalytic degradation of methylene blue and methyl orange over TiO₂ powder were determined using Ultraviolet–visible spectroscopy (UV–Vis).

• Periodical: Applied Mechanics and Materials (Volume 749)
• Pages: 51-55
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.749.51
• Online since: April 2015
• Authors: Pongthep Jansanthea*, Natkritta Boonprakob, Jaruwan Treenattip, Pusit Pookmanee, Sukon Phanichphant
• Keywords: Photocatalytic, Solvothermal, TiO₂

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