Effect of adsorption properties of phosphorus-doped TiO2 nanotubes on photocatalytic NO removal
Effect of adsorption properties of phosphorus-doped TiO2 nanotubes on photocatalytic NO removal
复制标题
磷掺杂TiO2纳米管吸附性能对光催化脱硝NO的影响
DOI：
10.1016/j.jcis.2019.06.063
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发表时间：
2019-10-01
影响因子：
9.9
通讯作者：
Gu, Changjun
中科院分区：
文献类型：
--
作者：
Huang, Rui;Zhang, Shule;Gu, Changjun
制备了一系列P掺杂的TiO 2纳米管（P-NTs）催化剂，并将其用于NO的光催化氧化（PCO）。通过XRD、拉曼和TEM表征，证实了P掺杂到了TiO 2纳米管晶格中。通过UV-vis、Mott-Schottky和瞬态光电流响应的研究发现，P-TiO_2的光电性能并不是NO PCO性能增强的原因。因此，本文重点研究了催化剂的反应过程和反应物的吸附特性。瞬态反应结果表明，在P-TiO 2催化剂上，该反应遵循Langmuir-Hinshelwood（L-H）和Eley-Rideal（E-R）混合机理。此外，P掺杂有利于H2 O2和NO的吸附，这归因于由Elsevier Inc.出版的NO.（C）2019的PCO性能的改善。
A series of P doped TiO2 nanotubes (P-TNTs) catalysts were prepared for photocatalytic oxidation (PCO) of NO. Compared with TiO2 nanotubes, P-TNTs catalysts exhibited excellent catalytic activity. We confirmed that P was doped into TiO2 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-TiO2 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-TiO2 catalyst. In addition, P doping was beneficial to the adsorption of H2O2 and NO, which is ascribed to the improved PCO performance of NO. (C) 2019 Published by Elsevier Inc.