On developing ferrisilicate catalysts supported on silicon carbide (SiC) foam catalysts for continuous catalytic wet peroxide oxidation (CWPO) reactionsCitation formats

  • External authors:
  • Xiaoxia Ou
  • Fotios Pilitsis
  • Ninghui Xu
  • S F Rebecca Taylor
  • Jinsong Zhang
  • Yilai Jiao

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On developing ferrisilicate catalysts supported on silicon carbide (SiC) foam catalysts for continuous catalytic wet peroxide oxidation (CWPO) reactions. / Ou, Xiaoxia; Pilitsis, Fotios ; Xu, Ninghui; Taylor, S F Rebecca; Warren, John Edward; Garforth, Arthur; Zhang, Jinsong; Hardacre, Christopher; Jiao, Yilai; Fan, Xiaolei.

In: Catalysis Today, 2018.

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@article{9544e2d6c0b84ea18f81c0e2838e84fb,
title = "On developing ferrisilicate catalysts supported on silicon carbide (SiC) foam catalysts for continuous catalytic wet peroxide oxidation (CWPO) reactions",
abstract = "Fe supported catalysts show great promise for enabling practical environmental catalysis, exemplified by the catalytic wet peroxide oxidation (CWPO) process. In order to mitigate the Fe leaching issue, a strategy of assembling zeolitic coatings with intraframework Fe (ferrisilicate) on SiC foams was developed, showing a good stability in CWPO and a low Fe leaching of 2.0 mg l−1. Direct hydrothermal synthesis of ferrisilicate/SiC foam composites was systematically studied, showing that their characteristics depend on the growth time, pH value and iron concentration of the growth solution. Selected ferrisilicate/SiC foam composite was evaluated using the continuous CWPO of phenolic aqueous solution at 60 C. The open-cell size of SiC foam was varied between 800 and 2000 μm and showed insignificant effect on the hydrodynamics of the flow process at 1 ml min−1, but the process efficiency in terms of phenol and total-organic-carbon (TOC) conversions was favored by a high surface-to-volume ratio (i.e. small open-cell sizes). Ferrisilicate/SiC foam catalysts (average open-cell size = 800 μm) showed good stability in the model system with the stable conversions of phenol (97%), H2O2 (84%) and TOC (37%) over 24 h time-on-stream.",
keywords = "Ferrisilicate, SiC foams, Structured catalyst, Catalytic wet peroxide oxidation (CWPO)",
author = "Xiaoxia Ou and Fotios Pilitsis and Ninghui Xu and Taylor, {S F Rebecca} and Warren, {John Edward} and Arthur Garforth and Jinsong Zhang and Christopher Hardacre and Yilai Jiao and Xiaolei Fan",
year = "2018",
doi = "10.1016/j.cattod.2018.06.033",
language = "English",
journal = "Catalysis Today",
issn = "0920-5861",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - On developing ferrisilicate catalysts supported on silicon carbide (SiC) foam catalysts for continuous catalytic wet peroxide oxidation (CWPO) reactions

AU - Ou, Xiaoxia

AU - Pilitsis, Fotios

AU - Xu, Ninghui

AU - Taylor, S F Rebecca

AU - Warren, John Edward

AU - Garforth, Arthur

AU - Zhang, Jinsong

AU - Hardacre, Christopher

AU - Jiao, Yilai

AU - Fan, Xiaolei

PY - 2018

Y1 - 2018

N2 - Fe supported catalysts show great promise for enabling practical environmental catalysis, exemplified by the catalytic wet peroxide oxidation (CWPO) process. In order to mitigate the Fe leaching issue, a strategy of assembling zeolitic coatings with intraframework Fe (ferrisilicate) on SiC foams was developed, showing a good stability in CWPO and a low Fe leaching of 2.0 mg l−1. Direct hydrothermal synthesis of ferrisilicate/SiC foam composites was systematically studied, showing that their characteristics depend on the growth time, pH value and iron concentration of the growth solution. Selected ferrisilicate/SiC foam composite was evaluated using the continuous CWPO of phenolic aqueous solution at 60 C. The open-cell size of SiC foam was varied between 800 and 2000 μm and showed insignificant effect on the hydrodynamics of the flow process at 1 ml min−1, but the process efficiency in terms of phenol and total-organic-carbon (TOC) conversions was favored by a high surface-to-volume ratio (i.e. small open-cell sizes). Ferrisilicate/SiC foam catalysts (average open-cell size = 800 μm) showed good stability in the model system with the stable conversions of phenol (97%), H2O2 (84%) and TOC (37%) over 24 h time-on-stream.

AB - Fe supported catalysts show great promise for enabling practical environmental catalysis, exemplified by the catalytic wet peroxide oxidation (CWPO) process. In order to mitigate the Fe leaching issue, a strategy of assembling zeolitic coatings with intraframework Fe (ferrisilicate) on SiC foams was developed, showing a good stability in CWPO and a low Fe leaching of 2.0 mg l−1. Direct hydrothermal synthesis of ferrisilicate/SiC foam composites was systematically studied, showing that their characteristics depend on the growth time, pH value and iron concentration of the growth solution. Selected ferrisilicate/SiC foam composite was evaluated using the continuous CWPO of phenolic aqueous solution at 60 C. The open-cell size of SiC foam was varied between 800 and 2000 μm and showed insignificant effect on the hydrodynamics of the flow process at 1 ml min−1, but the process efficiency in terms of phenol and total-organic-carbon (TOC) conversions was favored by a high surface-to-volume ratio (i.e. small open-cell sizes). Ferrisilicate/SiC foam catalysts (average open-cell size = 800 μm) showed good stability in the model system with the stable conversions of phenol (97%), H2O2 (84%) and TOC (37%) over 24 h time-on-stream.

KW - Ferrisilicate

KW - SiC foams

KW - Structured catalyst

KW - Catalytic wet peroxide oxidation (CWPO)

U2 - 10.1016/j.cattod.2018.06.033

DO - 10.1016/j.cattod.2018.06.033

M3 - Article

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

ER -