Journal
APPLIED SURFACE SCIENCE
Volume 476, Issue -, Pages 834-839Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2019.01.190
Keywords
Photo-treatment; Ce/Ti catalyst; Strong interaction; NH3-SCR
Categories
Funding
- Key Project of Chinese National Programs for Research and Development [2016YFC0203800]
- National Natural Science Foundation of China [51408309, 51578288]
- Industry-Academia Cooperation Innovation Fund Projects of Jiangsu Province [BY2016004-09]
- Jiangsu Province Scientific and Technological Achievements into a Special Fund Project [BA2015062, BA2016055, BA2017095]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX18_0445]
- Industry-Academia Cooperation Project of Datang Pro-environment [DNEPT_CZ_179_16]
- Top-notch Academic Programs Project of Jiangsu Higher Education Institutions
Ask authors/readers for more resources
CeO2 supported TiO2 catalysts exhibit poor low temperature catalytic activities in relative studies and applications for NOx reduction to N-2 due to the weaker interaction between CeO2 and TiO2. Herein, novel Ultraviolet (UV) light photo-treatment method was developed for treating CeO2/TiO2 (Ce/Ti) catalyst prepared by conventional we impregnation. XRD, Raman, XPS, H-2-TPR analyses suggested that photo-treatment induced a stronger interaction between CeO2 and TiO2 and high content oxygen vacancies and CO3+ ions. All these changes significantly improved the redox properties of Ce/Ti catalyst. The catalytic performance test results showed that the photo-treated Ce/Ti catalysts exhibited much higher NO removal efficiency than untreated Ce/Ti and also high stability. Followed promotional mechanism studies via ammonia temperature-programmed desorption (NH3-TPD) and in situ diffuse reflectance infrared spectrometer (DRIFT) proved that the superior selective catalytic reduction (SCR) catalytic activity of photo-treated Ce/Ti catalysts were attributed to the collective effect of higher acidity and better redox properties. We expected that this work would contribute to developing new feasible approach to enhancing the catalytic performance of supported oxide catalyst.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available