Malodor is an important class of air pollution that poses a serious threat to personal health and quality of life. Ammonia gas is a major cause of malodor complaints and is produced by microbial decompositions of organic wastes. It is often found in waste treatment and handling facilities, landfills and indoors at lavatories and wet markets. The task is to develop viable technology for the treatment of this ambient malodor at near room temperature without generating secondary pollution.A catalyst capable of attaining better than 99 % conversion of 50 ppm NH3 in air at room temperature was successfully prepared. The NH3 was oxidized to nitrogen and water during the reaction without producing NOx. The catalyst was characterized by temperature programmed reduction, micro-Raman and X-ray photoelectron spectroscopy to identify the active sites to be monomeric VOx on TiOx.

Low temperature catalysts for direct remediation of NH<sub>3</sub> malodor in air

245th National Meeting (2013)

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Low temperature catalysts for direct remediation of NH3 malodor in air

Low temperature catalysts for direct remediation of NH₃ malodor in air