The degradation efficiency and degradation products of volatile organic compounds using doped-TiO2 photocatalyst

The degradation performance of volatile organic compounds (VOCs) under visible light irradiation by Fe-doped and nitrogen-doped nanocrystalline TiO2 powders prepared by hydrothermal method has been investigated systematically in this article. The absorption spectral edge of Fe-doped and N-doped nano-TiO2 powders have been red-shifted to nearly 540 nm and 580 nm, respectively. Experimental results show that the degradation ratio of VOCs was over 20% to 50% within 24 hours. CO2 was one of the final degradation products.