Performance of Ti-pillared montmorillonite supported Fe catalysts for toluene oxidation: The effect of Fe on catalytic activity
Source abstract
Abstract
In this study, TiO2-pillared montmorillonite (Ti-PILC) supported Fe catalysts were synthesized and used for the catalytic oxidation of toluene. The prepared catalysts were characterized by a combination of XRD, N2 adsorption-desorption isotherms, XPS, H2-TPR and NH3-TPD. The Fe introduction preserves the mesoporous structure and porosity of Ti-PILC. In the steady-state catalytic test and kinetic analysis, the toluene oxidation over studied catalysts follows the Mars-Van Krevelen mechanism. By the generation of strong acid sites and abundant surface oxygen species, Fe introduction obviously improves the catalytic activity of Ti-PILC for toluene oxidation. But with the increase of Fe content, the activity initially enhances, and then decreases. The effect of Fe species on the promoted toluene oxidation over Ti-PILC was discussed in view of reaction mechanism and above-mentioned variations of physicochemical properties. Furthermore, the Ti-PILC supported Fe catalysts display high stability and superior activity in the presence of water vapor, which present an applied interest.
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Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Industrial Gas Emission Control
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References (41)
Show source-provided references
1. Porous Co3O4 nanowires and nanorods: highly active catalysts for the combustion of toluene10.1016/j.apcata.2012.09.054 ↗
2. Photoactivity of anatase-rutile TiO2 nanocrystalline mixtures obtained by heat treatment of homogeneously precipitated anatase10.1016/j.apcatb.2004.06.019 ↗
3. Chapter 10.5 - pillared clays and clay minerals
4. Catalytic oxidation of toluene on Ce–Co and La–Co mixed oxides synthesized by exotemplating and evaporation methods10.1016/j.cattod.2014.06.018 ↗
5. The catalytic combustion of VOCs over copper catalysts supported on cerium-modified and zirconium-pillared montmorillonite10.1016/j.catcom.2008.12.016 ↗
6. Comparison study of titania pillared interlayered clays and porous clay heterostructures modified with copper and iron as catalysts of the DeNOx process10.1016/j.clay.2010.12.009 ↗
7. Removal and destruction of benzene, toluene, and xylene from waste-water by air stripping and catalytic-oxidation10.1021/ie00011a010 ↗
8. VOC oxidation over CuO-CeO2 catalysts prepared by a combustion method10.1016/j.apcatb.2009.02.003 ↗
9. Hydrolysis of titanium(IV) in aqueous (Na,H)Cl solution10.1039/dt9790001917 ↗
10. Manganese oxide OMS-2 as an effective catalyst for total oxidation of ethyl acetate10.1016/j.apcatb.2006.10.017 ↗
11. TAP study of toluene total oxidation over a Co3O4/La-CeO2 catalyst with an application as a washcoat of cordierite honeycomb monoliths10.1039/C4CP00886C ↗
12. Structural, textural and acidic properties of Cu-, Fe- and Cr-doped Ti-pillared montmorillonites10.1016/j.clay.2015.09.010 ↗
13. Potential volatile organic compound exposure from dry process photocopiers in operation-idle mode10.1007/s00128-006-1006-y ↗
14. α-Fe2O3 nanorings prepared by a microwave-assisted hydrothermal process and their sensing properties10.1002/adma.200602176 ↗
15. Catalytic performance of pillared interlayered clays (PILCs) supported CrCe catalysts for deep oxidation of nitrogen-containing VOCs10.1016/j.apcatb.2010.01.011 ↗
16. Effect of doping the nitrogen into carbon nanotubes on the activity of NiO catalysts for the oxidation removal of toluene10.1016/j.apcatb.2014.06.026 ↗
17. Catalytic oxidation of VOCs over CNT-supported platinum nanoparticles10.1016/j.apsusc.2013.11.066 ↗
18. Efficiency of clay-TiO2 nanocomposites on the photocatalytic elimination of a model hydrophobic air pollutant10.1021/es803032t ↗
19. Characteristics of the HCHO oxidation reaction over Pt/TiO2 catalysts at room temperature: the effect of relative humidity on catalytic activity10.1016/j.apcatb.2014.08.024 ↗
20. Catalytic oxidation of VOCs over Al- and Fe-pillared montmorillonite10.1016/j.clay.2013.02.027 ↗
21. Effect of Cu substitution on promoted benzene oxidation over porous CuCo-based catalysts derived from layered double hydroxide with resistance of water vapor10.1016/j.apcatb.2014.11.040 ↗
22. Fe/Ti co-pillared clay for enhanced arsenite removal and photo oxidation under UV irradiation10.1016/j.apsusc.2014.10.111 ↗
23. Selective catalytic reduction of nitrogen oxides by ammonia over Fe3+-exchanged TiO2-pillared clay catalysts10.1006/jcat.1999.2558 ↗
24. Active, selective and robust Pd and/or Cr catalysts supported on Ti-, Zr- or [Ti,Zr]-pillared montmorillonites for destruction of chlorinated volatile organic compounds10.1016/j.apcatb.2015.03.015 ↗
25. Catalysts based on clay and iron oxide for oxidation of toluene10.1016/j.clay.2010.12.007 ↗
26. Catalytic oxidation of aromatic VOCs with Cr or Pd-impregnated Al-pillared bentonite: byproduct formation and deactivation studies10.1016/j.clay.2007.06.003 ↗
27. Palygorskite-TiO2 nanocomposites: part 2. Photocatalytic activities in decomposing air and organic pollutants10.1016/j.clay.2012.03.003 ↗
28. Three-phase nanocomposites of two nanoclays and TiO2: synthesis, characterization and photacatalytic activities10.1016/j.apcatb.2013.09.025 ↗
29. Critical review of catalytic oxidization and chemisorption methods for indoor formaldehyde removal10.1080/10789669.2011.587587 ↗
30. Low temperature oxidation of toluene by ozone over MnOx/gamma-alumina and MnOx/MCM-41 catalysts10.1016/j.cej.2012.06.016 ↗
31. Photocatalytic degradation of anionic and cationic dyes over TiO2 P25, and Ti-pillared clays and Ag-doped Ti-pillared clays10.1016/j.clay.2014.04.014 ↗
32. Three-dimensional mesoporous chromium oxide: a highly efficient material for the elimination of volatile organic compounds10.1002/anie.200461284 ↗
33. VOC deep oxidation over Pt catalysts using hydrophobic supports10.1016/S0920-5861(98)00179-5 ↗
34. Structure and hydrophilicity of titanium oxide films prepared by electron beam evaporation10.1016/j.susc.2003.10.044 ↗
35. Supported copper and cobalt oxides on activated carbon for simultaneous oxidation of toluene and cyclohexane in air10.1039/C4RA14430A ↗
36. Constructing covalent interface in rubber/clay nanocomposite by combining structural modification and inter lamellar silylation of montmorillonite10.1021/am504426j ↗
37. Low-temperature catalysis for VOCs removal in technology and application: a state-of-the-art review10.1016/j.cattod.2015.10.040 ↗
38. Effect of calcination temperature of Cu-Mn/γ-Al2O3 catalysts on performance for catalytic oxidation of toluene10.15541/jim20140672 ↗
39. Promoting effect of Ce added to metal oxide supported on Al pillared clays for deep benzene oxidation10.1016/j.apcatb.2009.05.025 ↗
40. Synthesis and characterization of aluminum and Al/REE pillared clays and supported palladium catalysts for benzene oxidation10.1016/S1002-0721(10)60393-6 ↗
41. Study on the preparation and characterization of a titanium-pillared clay-supported CrCe catalyst and its application to the degradation of a low concentration of chlorobenzene10.1016/j.clay.2014.12.033 ↗