Dynamic adsorption–desorption of methyl ethyl ketone on MCM-41 and SBA-15 decorated with thermally activated polymers

Janus, Rafał; Wądrzyk, Mariusz; Natkański, Piotr; Cool, Pegie; Kuśtrowski, Piotr

doi:10.1016/j.jiec.2018.12.004

Cited by 18 publications

(12 citation statements)

References 50 publications

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“…At present, the most common options for the mitigation of gaseous ketones include catalytic oxidation, 7,8 biofiltration, 9,10 and adsorption. 1,2 Catalytic oxidation technologies often require high temperatures (>200 °C) to achieve appreciable removal efficiencies for gaseous ketones due to their energy intensive nature. 7,8,11 Also, most catalysts typically employ noble metals, making them uneconomical for practical purposes.…”

Section: Introductionmentioning

confidence: 99%

Metal–Organic Frameworks for the Adsorptive Removal of Gaseous Aliphatic Ketones

Vikrant

Kim

Kumar

et al. 2020

ACS Appl. Mater. Interfaces

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Recent research endeavors have established metal–organic frameworks (MOFs) as suitable platforms for the adsorptive removal of various environmental pollutants. In this regard, the sorptive performances of four MOFs (MOF-199, UiO-66, UiO-66-NH2, and Co-CUK-1) were investigated against two gaseous aliphatic ketones (methyl ethyl ketone (MEK) and methyl isobutyl ketone (MiBK)) at a low partial pressure (0.1 Pa). Activated carbon was utilized as a reference commercial sorbent. The 10% breakthrough volume (BTV10) values for MEK decreased in the following order: MOF-199 (4772 L atm g–1) > activated carbon (224 L atm g–1) > UiO-66-NH2 (106 L atm g–1) > UiO-66 (53 L atm g–1) > Co-CUK-1 (16 L atm g–1). In case of MiBK, the relative ordering in BTV10 was consistently maintained while showing noticeable increases in its magnitude: MOF-199 (7659 L atm g–1) > activated carbon (816 L atm g–1) > UiO-66-NH2 (304 L atm g–1) > UiO-66 (150 L atm g–1) > Co-CUK-1 (31 L atm g–1). The superiority of MOF-199 was confirmed toward the adsorptive removal of gaseous aliphatic ketones. For a binary mixture of ketones, the BTV10 values of MOF-199 were reduced considerably for MEK and MiBK (in comparison to single component sorption) such as 1579 and 3969 L atm g–1, respectively, reflecting competitive inhibition of the adsorption process. Theoretical simulations based on density functional theory (DFT) elucidated the involvement of highly favorable coordination between the carbonyl group present in ketone molecules and the uncoordinated Cu(II) sites in the MOF-199 structure (Lewis acidic centers). Interestingly, MOF-199 maintained appreciable performance toward the mixture of ketones up to 5 cycles to support its practical merit.

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Section: Introductionmentioning

confidence: 99%

Metal–Organic Frameworks for the Adsorptive Removal of Gaseous Aliphatic Ketones

Vikrant

Kim

Kumar

et al. 2020

ACS Appl. Mater. Interfaces

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“…The thermogravimetric curves of the synthesized SBA-15 samples (Fig. 6 (b)) indicate two mass loss events, the rst below 100°C with 5 % loss relative to the adsorption of physically adsorbed water and the second between 300 and 400°C with 45 % of loss corresponding to the decomposition of the surfactant (Pluronic P123) occluded in the pores of the molecular sieve [61][62]. These events can be observed in all samples SBA-15 and it is noticeable.…”

Section: Characterizationsmentioning

confidence: 92%

Green Synthesis for MCM-41 and SBA-15 Silica Using the Waste Mother Liquor

Barbosa

Barros

Barbosa

et al. 2021

Silicon

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The synthesis of mesoporous materials such as MCM-41 and SBA-15 requires large amounts of water to neutralize the resulting products. The ltrate (mother liquor) therefore contains unreacted components that can be recycled and reused. The addition of the mother liquor in consecutive syntheses was carried out in order to evaluate the different effects on the physical and chemical properties of the mesoporous materials. For this purpose, the mother liquor from the initial synthesis (1st Generation) was saved and used for the second synthesis (2nd Generation) and successively for the third synthesis (3rd Generation).The three generations of each material were then characterized using different techniques such as X-ray diffraction, X-ray dispersive energy uorescence, electron microscopy, infrared spectroscopy, Thermal behavior by thermogravimetric analysis and N 2 adsorption. The materials obtained showed similar diffractograms for the three generations and also showed similar percentages of silica through XRF. The SEM and IR results for molecular sieves showed the effectiveness of the processes of MCM-41 and SBA-15 synthesis using mother liquor. The results made it possible to observe that the structures of the materials had no signi cant differences in their physical and chemical properties, favoring the use of mother liquor for up to three generations.

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“…The thermogravimetric curves of the synthesized SBA-15 samples (Fig. 6 (b)) indicate two mass loss events, the rst below 100°C with 5 % loss relative to the adsorption of physically adsorbed water and the second between 300 and 400°C with % of loss corresponding to the decomposition of the surfactant (Pluronic P123) occluded in the pores of the molecular sieve [61][62]. These events can be observed in all samples SBA-15 and it is noticeable.…”

Section: Characterizationsmentioning

confidence: 92%

Green Synthesis for MCM-41 and SBA-15 Silica Using the Waste Mother Liquor

Tsb

Trb

Tla

et al. 2021

Preprint

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The synthesis of mesoporous materials such as MCM-41 and SBA-15 requires large amounts of water to neutralize the resulting products. The filtrate (mother liquor) therefore contains unreacted components that can be recycled and reused. The addition of the mother liquor in consecutive syntheses was carried out in order to evaluate the different effects on the physical and chemical properties of the mesoporous materials. For this purpose, the mother liquor from the initial synthesis (1st Generation) was saved and used for the second synthesis (2nd Generation) and successively for the third synthesis (3rd Generation). The three generations of each material were then characterized using different techniques such as X-ray diffraction, X-ray dispersive energy fluorescence, electron microscopy, infrared spectroscopy, Thermal behavior by thermogravimetric analysis and N2 adsorption. The materials obtained showed similar diffractograms for the three generations and also showed similar percentages of silica through XRF. The SEM and IR results for molecular sieves showed the effectiveness of the processes of MCM-41 and SBA-15 synthesis using mother liquor. The results made it possible to observe that the structures of the materials had no significant differences in their physical and chemical properties, favoring the use of mother liquor for up to three generations.

show abstract

Dynamic adsorption–desorption of methyl ethyl ketone on MCM-41 and SBA-15 decorated with thermally activated polymers

Cited by 18 publications

References 50 publications

Metal–Organic Frameworks for the Adsorptive Removal of Gaseous Aliphatic Ketones

Metal–Organic Frameworks for the Adsorptive Removal of Gaseous Aliphatic Ketones

Green Synthesis for MCM-41 and SBA-15 Silica Using the Waste Mother Liquor

Green Synthesis for MCM-41 and SBA-15 Silica Using the Waste Mother Liquor

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