Effect of adsorption properties of phosphorus-doped TiO 2 nanotubes on photocatalytic NO removal

A series of P doped TiO nanotubes (P-TNTs) catalysts were prepared for photocatalytic oxidation (PCO) of NO. Compared with TiO nanotubes, P-TNTs catalysts exhibited excellent catalytic activity. We confirmed that P was doped into TiO nanotubes lattice by XRD, Raman and TEM characterization. It was f...

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Published in:Journal of colloid and interface science 2019-06, Vol.553, p.647
Main Authors: Huang, Rui, Zhang, Shule, Ding, Jie, Meng, Yahan, Zhong, Qin, Kong, Deshuang, Gu, Changjun
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container_title Journal of colloid and interface science
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Zhang, Shule
Ding, Jie
Meng, Yahan
Zhong, Qin
Kong, Deshuang
Gu, Changjun
description A series of P doped TiO nanotubes (P-TNTs) catalysts were prepared for photocatalytic oxidation (PCO) of NO. Compared with TiO nanotubes, P-TNTs catalysts exhibited excellent catalytic activity. We confirmed that P was doped into TiO nanotubes lattice by XRD, Raman and TEM characterization. It was found that the enhanced PCO performance of NO was not attributed to the photoelectric properties of the P-TiO from UV-vis, Mott-Schottky and transient photocurrent response results. Therefore, we focused on the studies of catalyst reaction process and reactant adsorption characteristics. The results of transient reactions showed that the catalytic reaction proceeded via a mixed mechanism of Langmuir-Hinshelwood (L-H) and Eley-Rideal (E-R) on the P-TiO catalyst. In addition, P doping was beneficial to the adsorption of H O and NO, which is ascribed to the improved PCO performance of NO.
doi_str_mv 10.1016/j.jcis.2019.06.063
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title Effect of adsorption properties of phosphorus-doped TiO 2 nanotubes on photocatalytic NO removal
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