SO2 capture in a chemical stable Al(III) MOF: DUT-4 as an effective adsorbent to clean CH4

López‐Olvera, Alfredo; Pioquinto-García, Sandra; Zárate, J. Antonio; Díaz, Gabriela; Martínez‐Ahumada, Eva; Obeso, Juan L.; Martis, Vladimir; Lara-García, Hugo A.; Leyva, Carolina; Soares, Carla Vieira; Maurin, Guillaume; Ibarra, Ilich A.; Dávila-Guzmán, Nancy E.

doi:10.1016/j.fuel.2022.124213

Cited by 18 publications

(13 citation statements)

References 32 publications

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“…This outstanding SO 2 adsorption at low pressure is higher than some representative MOFs in the literature (Figure 3). For example, a comparison of Al(III)-based MOFs such as MIL-100(Al), 19 DUT-4, 36 and MOF-300, shows a relationship between the surface area and pore volume. High surface areas improve the total SO 2 adsorption at 1 bar.…”

Section: Resultsmentioning

confidence: 99%

“…37 DUT-4 showed a similar heat of adsorption (ΔH = −31.3 kJ•mol −1 ), displaying also the main interactions with the μ 2 -OH sites. 36 In most of the cases, different MOF-based materials have been reported with relatively low heats of adsorption for SO 2 uptake, for example, HBU-20 (ΔH = 34.1 kJ•mol −1 ), 38 ECUT-77 (ΔH = 33.3 kJ• mol −1 ), 39 and ECUT-111 (ΔH = 32.2 kJ•mol −1 ), 40 strongly indicating a physisorption process by hydrogen-bonding interactions.…”

Section: Resultsmentioning

confidence: 99%

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MOF-303 as an Effective Adsorbent to Clean CH₄: SO₂ Capture and Detection

Obeso

Martínez‐Ahumada

López‐Olvera

et al. 2022

ACS Appl. Energy Mater.

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Catalysts for the oxidation of CH4 commonly suffer from poisoning by sulfur-containing molecules, such as H2S and SO2. This is a huge problem in real energy applications. As a possible solution, a material capable of selectively capturing the poisoning SO2 is necessary. In this work, water-stable MOF-303 shows high performance for SO2 capture at low pressures (6.21 mmol·g–1 at 298 K and 0.1 bar), ideal characteristics for the adsorption of trace amounts of SO2. Furthermore, MOF-303 showed high chemical stability toward dry and humid SO2 and a remarkable cycling performance with facile regeneration. In addition, MOF-303 displayed high selectivity toward SO2 over CH4 and CO2. Finally, fluorescence experiments proved that the SO2 detection properties of this MOF material are highly promising, even in the presence of CH4 and CO2.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

MOF-303 as an Effective Adsorbent to Clean CH₄: SO₂ Capture and Detection

Obeso

Martínez‐Ahumada

López‐Olvera

et al. 2022

ACS Appl. Energy Mater.

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“…MOF materials can also be used as a catalyst due to their special structure. The group of Garcia [ 120 ] investigated the performance of a highly stable Al(III) MOF called DUT-4 for SO 2 gas adsorption. It was found that DUT-4 showed good SO 2 capture performance, with one of the best MOFs with similar pore size volume reported so far in terms of adsorption capacity at 298 K and 1 bar, and good cyclability and easy adsorption reversibility.…”

Section: Mechanism and Application Of Mofs For Voc Removalmentioning

confidence: 99%

Adsorption and Degradation of Volatile Organic Compounds by Metal–Organic Frameworks (MOFs): A Review

et al. 2022

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Volatile organic compounds (VOCs) are a major threat to human life and health. The technologies currently used to remove VOCs mainly include adsorption and photocatalysis. Adsorption is the most straightforward strategy, but it cannot ultimately eliminate VOCs. Due to the limited binding surface, the formaldehyde adsorption on conventional photocatalysts is limited, and the photocatalytic degradation efficiency is not high enough. By developing novel metal–organic framework (MOF) materials that can catalytically degrade VOCs at room temperature, the organic combination of new MOF materials and traditional purification equipment can be achieved to optimize adsorption and degradation performance. In the present review, based on the research on the adsorption and removal of VOCs by MOF materials in the past 10 years, starting from the structure and characteristics of MOFs, the classification of which was described in detail, the influencing factors and mechanisms in the process of adsorption and removal of VOCs were summarized. In addition, the research progress of MOF materials was summarized, and its future development in this field was prospected.

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“…A relatively new class of highly crystalline and porous materials known as metal-organic frameworks (MOFs) has been recently explored. 12 Selected examples have demonstrated remarkable SO 2 capture results, 13 even under humid conditions. 14 However, one of the main criticisms of MOFs is the current high cost of production for the organic ligands, in combination with difficult scalability, which raises questions about the sustainable economics of capturing SO 2 using MOFs at the industrial scale.…”

Section: Introductionmentioning

confidence: 99%