Nitrogen Doped TiO2 Prepared under Microwave Irradiation: Effect of Different Irradiation Light

M.S. Azami; S.K. Ain; Nur Raihan Zaharudin; F. Bakar; Wan Izhan Nawawi

doi:10.4028/www.scientific.net/AMM.835.372

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 835Nitrogen Doped TiO2 Prepared under Microwave...

Nitrogen Doped TiO₂ Prepared under Microwave Irradiation: Effect of Different Irradiation Light

Abstract:

A visible light active nitrogen (N) doped TiO₂was prepared using commercially available TiO₂ P25. In this study, a simple N doped TiO₂ was prepared by mixing of TiO₂ powder with urea as N precursor under microwave irradiation instead of normal using muffle furnace as heating media. Prepared N doped TiO₂samples shows active under visible light irradiation due to lower band gaps energy of N doped TiO₂observed by UV/Vis-DRS. U3-800 was found as optimum N doped where photodegradation rate of RR4 dye under is 1.6 times faster compared with unmodified TiO₂ as well as control TiO₂ under normal 55-W fluorescent lamp. An active photo response under visible light was observed from U3-800 with 80 minutes of time irradiation to complete RR4 color removal, while no photocatalytic degradation was observed from unmodified and control TiO₂.As a result, this study contributed to purification of effluent specifically toxic dyes with complete mineralization under visible light irradiation. For the future work, the modification of TiO2 with nitrogen and metal doping will indirectly increase the efficiency of photodegradation under visible light. In future, the immobilized technique can also be applied for N doped TiO2 to overcome the reusability issue.

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Applied Mechanics and Materials (Volume 835)

Pages:

372-377

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.835.372

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Online since:

May 2016

Authors:

M.S. Azami, S.K. Ain, Nur Raihan Zaharudin, F. Bakar, Wan Izhan Nawawi

Keywords:

Microwave, Nitrogen Doping, Photocatalysis, Reactive Red 4

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