Low-temperature elemental mercury removal over TiO2 nanorods-supported MnOx-FeOx-CrOx
作者： Deshetti Jampaiah , Anastasios Chalkidis , Ylias M. Sabri , Edwin L.H. Mayes , Benjaram M. Reddy
DOI: 10.1016/J.CATTOD.2018.11.049
关键词:
摘要: Abstract TiO2 nanorods-supported MnOx, FeOx, CrOx, and MnOx-FeOx-CrOx catalysts have been prepared by a deposition-precipitation method, with the aim of investigating combination ternary metal oxides effect on elemental mercury (Hg0) removal. The catalyst manifested superior Hg0 removal efficiency (∼80-83%) at low temperatures (100–200 °C) in presence O2. addition NO promoted under same reaction conditions. Further, SEM, HRTEM, XRD, BET surface area, XPS characterization were carried out to explore physicochemical properties catalysts. It was found that integration three active contributed enrichment sites adsorbed oxygen species, thereby improving catalytic activity. Additionally, both large area high crystallization obtained nanorods resulted uniform dispersion manganese-iron-chromium mixed oxide nanoparticles data spent MnOx-FeOx-CrOx/TiO2 indicated Mn4+, Cr6+, Fe3+ could promote oxidation due strong synergistic interaction between nanorods-incorporated CrOx nanoparticles.
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