Photocatalytic Destruction of Methyl Orange by Titanium Dioxide Powder Synthesized by an Oxalate Co-Precipitation Method

Abstract:

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Titanium dioxide powder was synthesized by an oxalate co-precipitation method with titanium isopropoxide and oxalic acid as the starting precursors. White precipitate was obtained after adding ammonium hydroxide until the final pH of solution was 8 and then calcined at 400-800 °C for 2h. The phase was characterized by X-ray diffraction. Single phase anatase structure was obtained after calcination at 400 °C. Multi-phase of anatase and rutile structure was obtained after calcined at 600 and 800 °C. The morphology was investigated by scanning electron microscopy. The particle was irregular in shape and highly agglomerate with a range of particle size from 0.1-0.3 µm. The photocatalytic destruction of methyl orange by titanium dioxide was determined by Ultraviolet spectrophotometry. Titanium dioxide powder synthesized by an oxalate co-precipitation method after calcination at 800 °C showed the highest photocatalytic activity.

Info:

Periodical:

Advanced Materials Research (Volumes 93-94)

Edited by:

S. Suttiruengwong and W. Sricharussin

Pages:

320-323

DOI:

10.4028/www.scientific.net/AMR.93-94.320

Citation:

P. Pookmanee et al., "Photocatalytic Destruction of Methyl Orange by Titanium Dioxide Powder Synthesized by an Oxalate Co-Precipitation Method", Advanced Materials Research, Vols. 93-94, pp. 320-323, 2010

Online since:

January 2010

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$35.00

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