MODIFICATION OF TITANIUM DIOXIDE NANOMATERIALS BY SULFUR FOR PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE EVEN UNDER VISIBLE LIGHT

Nguyen Tan Lam

Abstract


This paper presents a study on preparation of sulfur doped titanium dioxide using potassium fluorotitanate and sodium sulfate as precursors. The obtained results indicated that the doped TiO2 exhibited very high photocatalytic activity for degradation of methylene blue even under visible light. The increasing in the added sulfur amounts led to significantly increase in the degradation of methylene blue. When the S/TiO2 mole ratios increased from 10 to 25%, the degradation of methylene blue under compact light increased from 30.87% to 67.06%, respectively.


Keywords


potassium fluorotitanate, titanium dioxide, sulfur, photocatalyst, visible light.

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DOI: https://doi.org/10.15625/2525-2518/54/2A/11926 Display counter: Abstract : 96 views. PDF : 74 views.

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Published by Vietnam Academy of Science and Technology