Abstract

Efficient and economical technologies are essential to the control of mercury, the emission of which imposes serious health concerns and environmental risks. Photocatalysis is an attractive method for reducing mercury emissions. Considering that titania is widely applied in the photodegradation of toxic contaminants, this study investigated the removal of mercury over cerium-based titania nanofibers (CBTs) at low temperature. According to the results, in the atmosphere containing SO2, both catalyst and UV proposed adverse effect on Hg0 oxidation. The competition between SO2 and Hg0 for active sites and the formation of cerium sulfate are responsible for the deactivation of Hg0 removal capacity. More interestingly, without O2, NO and HCl still exerted a superior promoting effect on mercury removal. Entirely different from the properties under SO2, UV and catalyst both facilitated Hg0 oxidation with the existence of HCl. Meanwhile, effects of the copresence of NO and SO2 on Hg0 removal were further investig...

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.