Abatement of Volatile Organic Compounds Emission as a Target for Various Human Activities Including Energy Production

Kuśtrowski, Piotr; Rokicińska, Anna; Kondratowicz, Tomasz

doi:10.1016/bs.adioch.2018.05.004

Cited by 39 publications

(23 citation statements)

References 185 publications

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“…However, the most efficient and economical way to remove VOCs emitted to the atmosphere at low concentrations seems to be catalytic combustion. This method allows for complete decomposition of VOCs already at low temperatures, therefore it does not lead to the formation of secondary impurities (such as NO x or dioxins) [1,2]. Due to a large variety of compounds classified as VOCs, different types of catalysts are used in the catalytic combustion.…”

Section: Introductionmentioning

confidence: 99%

Impact of Mn addition on catalytic performance of Cu/SiBEA materials in total oxidation of aromatic volatile organic compounds

Rokicińska

Majerska

Drozdek

et al. 2021

Applied Surface Science

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Dealuminated BEA zeolite (SiBEA) was chosen as a support of metal oxide(s) phase for catalytic combustion of volatile organic compounds (VOCs). Copper and/or manganese oxide(s) were deposited at various Cu/Mn molar ratios. Factors influencing the catalytic activity were found by chosen physicochemical methods, including XRD, XRF, lowtemperature N 2 adsorption, FT-IR, UV-Vis-DRS, STEM-EDX, XPS and H 2 -TPR. Depending on the chemical composition, CuO, (Cu x Mn 3-x ) 1-δ O 4 , Cu-doped Mn 3 O 4 or Mn 2 O 3 was formed as the dominant phase. The active phase particles were located mainly in the interparticle voids of the zeolite support. SiBEA gained Lewis acid sites after the introduction of the metal oxide phase, especially in the case of CuO deposition. The presence of copper in the catalytic system resulted in enhanced reducibility of the active phase, and in a consequence in high catalytic activity in the total oxidation of aromatic VOCs, which proceeds according to the Mars-van Krevelen mechanism. After the introduction of Mn, the co-existence of different valence forms was found due to the redox equilibrium: Cu 2+ + Mn 3+ = Cu + + Mn 4+ .

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Section: Introductionmentioning

confidence: 99%

Impact of Mn addition on catalytic performance of Cu/SiBEA materials in total oxidation of aromatic volatile organic compounds

Rokicińska

Majerska

Drozdek

et al. 2021

Applied Surface Science

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“…In general, systems tested so far can be divided into two main types due to the nature of the catalytically active phase, i.e., materials based on noble metals and transition metal oxides. The catalysts containing noble metals (e.g., Pt, Pd, Au or Ag) supported on various oxides (mainly SiO 2 or γ-Al 2 O 3 ) have an obvious advantage due to their extraordinary activity at low temperatures [1,2]. However, high production costs and sensitivity to poisoning (by sulfur-and halogen-containing compounds) constitute a serious limitation in their application.…”

Section: Introductionmentioning

confidence: 99%

“…A compromise solution is therefore to use transition metal oxides which combine the benefits of low manufacturing costs with relatively high efficiency and enhanced resistance to deactivation. The final performance of these catalysts is influenced by various factors, including properties of active components, dispersion of the active phase, and size and morphology of grains [1][2][3][4][5]. Co 3 O 4 , CuO, MnO x , Fe 2 O 3 and NiO are the most common oxide systems used in the combustion of VOCs.…”

Section: Introductionmentioning

confidence: 99%

Design of Co3O4@SiO2 Nanorattles for Catalytic Toluene Combustion Based on Bottom-Up Strategy Involving Spherical Poly(styrene-co-acrylic Acid) Template

et al. 2021

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Bearing in mind the need to develop optimal transition metal oxide-based catalysts for the combustion of volatile organic compounds (VOCs), yolk-shell materials were proposed. The constructed composites contained catalytically active Co3O4 nanoparticles, protected against aggregation and highly dispersed in a shell made of porous SiO2, forming a specific type of nanoreactor. The bottom-up synthesis started with obtaining spherical poly(styrene-co-acrylic acid) copolymer (PS30) cores, which were then covered with the SiO2 layer. The Co3O4 active phase was deposited by impregnation using the PS30@SiO2 composite as well as hollow SiO2 spheres with the removed copolymer core. Structure (XRD), morphology (SEM), chemical composition (XRF), state of the active phase (UV-Vis-DR and XPS) and reducibility (H2-TPR) of the obtained catalysts were studied. It was proven that the introduction of Co3O4 nanoparticles into the empty SiO2 spheres resulted in their loose distribution, which facilitated the access of reagents to active sites and, on the other hand, promoted the involvement of lattice oxygen in the catalytic process. As a result, the catalysts obtained in this way showed a very high activity in the combustion of toluene, which significantly exceeded that achieved over a standard silica gel supported Co3O4 catalyst.

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“…The catalytic oxidation offers several advantages compared to the thermal oxidation, especially at low VOC concentrations. This approach enables the complete destruction of VOCs at significantly lower temperatures (250–500 °C) without the formation of undesirable by-products [ 1 , 5 ]. Nevertheless, adequately active, selective and stable catalysts are required.…”

Section: Introductionmentioning

confidence: 99%

“…In a subsequent step, the ring opens to form acetate and maleate forms, which are further deeply oxidized to CO 2 and H 2 O. Furthermore, Wang and co-authors [24] investigated the geometrical-site-dependent catalytic activity of Co 3+ and Co 2+ by substituting these metal ions with inactive or less active Zn 2+ (d 0 ), Al 3+ (d 0 ) and Fe 3+ (d 5 ) cations. The collected results demonstrated that octahedrally coordinated Co 2+ sites are more easily oxidized to Co 3+ species compared to tetrahedral Co 2+ .…”

Section: Introductionmentioning

confidence: 99%

In Search of Factors Determining Activity of Co3O4 Nanoparticles Dispersed in Partially Exfoliated Montmorillonite Structure

Rokicińska¹,

Berniak²,

Drozdek³

et al. 2021

Molecules

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The paper discusses a formation of Mt–PAA composite containing a natural montmorillonite structure partially exfoliated by poly(acrylic acid) introduced through intercalation polymerization of acrylic acid. Mt–PAA was subsequently modified by controlled adsorption of Co2+ ions. The presence of aluminosilicate packets (clay) and carboxyl groups (hydrogel) led to the deposition of significant amounts of Co2+ ions, which after calcination formed the Co3O4 spinel particles. The conditions of the Co2+ ions’ deposition (pH, volume and concentration of Co(NO3)2 solution, as well as a type of pH-controlling agent) were widely varied. Physicochemical characterization of the prepared materials (including X-ray fluorescence (XRF), X-ray powder diffraction (XRD), low-temperature nitrogen adsorption, X-ray photoelectron spectroscopy (XPS) and temperature-programmed reduction (H2-TPR)) revealed that the modification conditions strongly influenced the content as well as the distribution of the Co3O4 active phase, tuning its reducibility. The latter parameter was, in turn, very important from the point of view of catalytic activity in the combustion of aromatic volatile organic compounds (VOCs) following the Mars–van Krevelen mechanism.

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Abatement of Volatile Organic Compounds Emission as a Target for Various Human Activities Including Energy Production

Cited by 39 publications

References 185 publications

Impact of Mn addition on catalytic performance of Cu/SiBEA materials in total oxidation of aromatic volatile organic compounds

Impact of Mn addition on catalytic performance of Cu/SiBEA materials in total oxidation of aromatic volatile organic compounds

Design of Co3O4@SiO2 Nanorattles for Catalytic Toluene Combustion Based on Bottom-Up Strategy Involving Spherical Poly(styrene-co-acrylic Acid) Template

In Search of Factors Determining Activity of Co3O4 Nanoparticles Dispersed in Partially Exfoliated Montmorillonite Structure

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