Article: The photocatalytic degradation of phenol over titanium dioxide powder prepared by the solvothermal method Journal: International Journal of Environmental Engineering (IJEE) 2016 Vol.8 No.1 pp.44 - 53 Abstract: Titanium dioxide (TiO2) powder was prepared by the solvothermal method. Titanium isopropoxide (C12H28O4Ti), ammonium hydroxide (NH4OH) and nitric acid (HNO3) were used as the starting materials. The mixed solution was diluted to 0.25 M with ethanol (C2H5OH) and heated at 100°C-150°C for 3-5 h in a Teflon-lined stainless steel autoclave vessel. TiO2 powder was characterised with Xray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The photocatalytic degradation of phenol over TiO2 powder under UV light irradiation was studied. The influence of the amount of TiO2 powder and irradiation time was investigated. The concentration of phenol was measured using UV-Vis spectrometry (UV-Vis). The optimum condition was obtained at 1.0 g.L−1 for the amount of TiO2 powder and irradiation time was 120 min. It was found that TiO2 powder prepared by the solvothermal method at 100°C for 3 h has the best performance photocatalytic for degradation of phenol. Inderscience Publishers - linking academia, business and industry through research

Title: The photocatalytic degradation of phenol over titanium dioxide powder prepared by the solvothermal method

Authors: Pongthep Jansanthea; Jaruwan Treenattip; Pusit Pookmanee; Sukon Phanichphant

Addresses: Department of Science, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit, 53000, Thailand ' Department of Science, Faculty of Science and Technology, Uttaradit Rajabhat University, Uttaradit, 53000, Thailand ' Department of Chemistry, Faculty of Science, Maejo University, Chiang Mai, 50290, Thailand; Nanoscience and Nanotechnology Research Laboratory (NNRL), Faculty of Science, Maejo University, Chiang Mai, 50290, Thailand ' Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand

Abstract: Titanium dioxide (TiO₂) powder was prepared by the solvothermal method. Titanium isopropoxide (C₁₂H₂₈O₄Ti), ammonium hydroxide (NH₄OH) and nitric acid (HNO₃) were used as the starting materials. The mixed solution was diluted to 0.25 M with ethanol (C₂H₅OH) and heated at 100°C-150°C for 3-5 h in a Teflon-lined stainless steel autoclave vessel. TiO₂ powder was characterised with Xray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The photocatalytic degradation of phenol over TiO₂ powder under UV light irradiation was studied. The influence of the amount of TiO₂ powder and irradiation time was investigated. The concentration of phenol was measured using UV-Vis spectrometry (UV-Vis). The optimum condition was obtained at 1.0 g.L⁻¹ for the amount of TiO₂ powder and irradiation time was 120 min. It was found that TiO₂ powder prepared by the solvothermal method at 100°C for 3 h has the best performance photocatalytic for degradation of phenol.

Keywords: solvothermal method; TiO2 powder; phenol; photocatalytic degradation; titanium dioxide.

DOI: 10.1504/IJEE.2016.078239

International Journal of Environmental Engineering, 2016 Vol.8 No.1, pp.44 - 53

Accepted: 10 Apr 2016
Published online: 09 Aug 2016 *

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Title: The photocatalytic degradation of phenol over titanium dioxide powder prepared by the solvothermal method

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