Abstract
Mesoporous silica (SBA-15) and iron oxide incorporated silica (Fe2O3-SBA-15) were synthesized by co-operative self-assembly technique. Samples were characterized using nitrogen adsorption–desorption isotherm, electron microscopic and spectroscopic techniques. The results confirm the uniform distribution of pores, presence of metal oxides in the pores as well as in the surface of the mesoporous wall and oxidation state of iron in the Fe2O3-SBA-15. The photocatalytic degradation of methylene blue (MB), sulphorhodamine B (SR-B) and methyl orange (MO) by Fe2O3-SBA-15 was investigated. It was observed that Fe2O3-SBA-15 degraded 98 % of MB, 96 % of SR-B and 99 % of MO within 3 h after exposure to sunlight. SBA-15 does not exhibit any photocatalytic effect. These results demonstrate the potential of Fe2O3-SBA-15 for environmental pollution control.
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The authors express their gratitude to Nano mission council, Department of Science and Technology, Govt. of India and SASTRA University for the infrastructural as well as financial assistance provided.
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Gandhi, S., Thandavan, K., Sethuraman, S. et al. Investigation of the photodegradation properties of iron oxide doped mesoporous SBA-15 silica. J Porous Mater 20, 1009–1015 (2013). https://doi.org/10.1007/s10934-013-9680-8
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DOI: https://doi.org/10.1007/s10934-013-9680-8