Carbon materials derived from cyano-based IL@ZIF-8 composites for CO2 sorption separation systems

Esteves, Laura M.; Ferreira, Tiago J.; Keba, Anastasiia; Esperança, José M.S.S.; Esteves, Isabel A. A. C.

doi:10.1016/j.mtsust.2023.100353

Cited by 6 publications

(1 citation statement)

References 72 publications

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“…The presence of IL leads to an increased selectivity of the studied composites for CO 2 , which is consistent with the findings reported in the literature. 51 − 53 Related literature reported that the coverage of the pores by a small amount of IL results in an increased surface polarity and a decreased hydrophobicity of SAPO-34. This, in turn, impedes N 2 sorption while promoting the sorption and selectivity of CO 2 by the SAPO-34-IL.…”

Section: Resultsmentioning

confidence: 99%

Enhanced CO₂ Capture through SAPO-34 Impregnated with Ionic Liquid

Ye,

Shen,

Chen

et al. 2024

Langmuir

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The concurrent utilization of an adsorbent and absorbent for carbon dioxide (CO 2 ) adsorption with synergistic effects presents a promising technique for CO 2 capture. Here, 1-butyl-3-methylimidazole acetate ([Bmim][Ac]), with a high affinity for CO 2 , and the molecular sieve SAPO-34 were selected. The impregnation method was used to composite the hybrid samples of [Bmim][Ac]/ SAPO-34, and the pore structure and surface property of prepared samples were characterized. The quantity and kinetics of the sorbed CO 2 for loaded samples were measured using thermogravimetric analysis. The study revealed that SAPO-34 could retain its pristine structure after [Bmim][Ac] loading. The CO 2 uptake of the loaded sample was 1.879 mmol g −1 at 303 K and 1 bar, exhibiting a 20.6% rise compared to that of the pristine SAPO-34 recording 1.558 mmol g −1 . The CO 2 uptake kinetics of the loaded samples were also accelerated, and the apparent mass transfer resistance for CO 2 sorption was significantly reduced by 11.2% compared with that of the pure [Bmim][Ac]. The differential scanning calorimetry method revealed that the loaded sample had a lower CO 2 desorption heat than that of the pure [Bmim][Ac], and the CO 2 desorption heat of the loaded samples was between 30.6 and 40.8 kJ mol −1 . The samples exhibited good cyclic stability. This material displays great potential for CO 2 capture applications, facilitating the reduction of greenhouse gas emissions.

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Section: Resultsmentioning

confidence: 99%

Enhanced CO₂ Capture through SAPO-34 Impregnated with Ionic Liquid

Ye,

Shen,

Chen

et al. 2024

Langmuir

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Synthesis and characterization of mixed matrix membranes with graphene oxide‐impregnated zeolitic imidazolate framework‐8 for enhanced CO₂/CH₄ separation

Gawali,

Jampa,

Sinha

2024

Asia-Pacific J Chem Eng

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For the in situ growth method, the reaction time is important because increasing the reaction time may make it possible for the crystallized ZIF‐8 to fully cover the GO sheets; the excess of ZIF‐8 particles reduces the aspect ratio of the GO sheet. The reaction time will significantly change the morphology, affecting the composite's ability to absorb selective gas and, in turn, affect the gas selectivity. The present work identifies the reaction time for in situ growth of ZIF‐8 nanoparticles on GO sheets. The composite was synthesized at different reaction times of 2, 4, 6, and 8 h and incorporated into the PSF matrix. The fabricated membranes were characterized by FTIR, TGA, SEM, and XRD. The novel synthesized reaction time (6 h) was identified for better enhancement of CO2/CH4 separation. For pure gas studies, the results investigated that the CO2 permeability and CO2/CH4 selectivity were increased by 223% and 98%, respectively, compared with plain PSF membrane. In mixed gas (CO2/CH4) studies, the CO2 permeability and CO2CH4 selectivity were increased by 349% and 854%, respectively, compared with plain PSF membrane. Hence, the in situ growth method helps synthesize MOF@GO composites in the application of gas separation.

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Searching for a cost-effective method of determining sorption properties for the industrial use of CO2 capture

Staf

Kyselová

2023

Chem. Pap.

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The study focuses on laboratory testing of carbon-dioxide adsorption. It compares three methods used to determine the capacity of the adsorbents proposed for CO2 capture. The tests have been performed on two samples, namely natural clinoptilolite and a 13X molecular sieve. Two methods were dynamic and one was static. The first dynamic method evaluated the capacity based on the change in CO2 volume fraction before and after a fixed-bed adsorber. For the same purpose, the second dynamic method used a gravimetric procedure. The static method detected a change in pressure during CO2 adsorption. The capacities determined for carbon-dioxide mole fractions of 5, 10, 13 and 20% at temperatures of 30 and 40 °C at atmospheric pressure were compared. The apparatus with a fixed-bed adsorber made it possible to perform tests also for overpressures of 2 and 5 bar and lower temperatures. The capacity obtained on the three apparatuses showed good agreement. The maximum capacity (3.32 mmol g−1) was determined for the 13X sample at 10 °C and a partial CO2 pressure of 120 kPa and, conversely, the lowest (0.12 mmol g−1) for clinoptilolite at 40 °C and a partial CO2 pressure of 5 kPa. There was no significant difference in capacity standard deviations between the apparatus (0.014–0.036 mmol g−1). The fixed-bed apparatus required one to three orders of magnitude more gas for the experiment and was more challenging to operate and evaluate the data.

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Carbon materials derived from cyano-based IL@ZIF-8 composites for CO2 sorption separation systems

Cited by 6 publications

References 72 publications

Enhanced CO₂ Capture through SAPO-34 Impregnated with Ionic Liquid

Enhanced CO₂ Capture through SAPO-34 Impregnated with Ionic Liquid

Synthesis and characterization of mixed matrix membranes with graphene oxide‐impregnated zeolitic imidazolate framework‐8 for enhanced CO₂/CH₄ separation

Searching for a cost-effective method of determining sorption properties for the industrial use of CO2 capture

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Carbon materials derived from cyano-based IL@ZIF-8 composites for CO2 sorption separation systems

Cited by 6 publications

References 72 publications

Enhanced CO2 Capture through SAPO-34 Impregnated with Ionic Liquid

Enhanced CO2 Capture through SAPO-34 Impregnated with Ionic Liquid

Synthesis and characterization of mixed matrix membranes with graphene oxide‐impregnated zeolitic imidazolate framework‐8 for enhanced CO2/CH4 separation

Searching for a cost-effective method of determining sorption properties for the industrial use of CO2 capture

Contact Info

Product

Resources

About

Enhanced CO₂ Capture through SAPO-34 Impregnated with Ionic Liquid

Enhanced CO₂ Capture through SAPO-34 Impregnated with Ionic Liquid

Synthesis and characterization of mixed matrix membranes with graphene oxide‐impregnated zeolitic imidazolate framework‐8 for enhanced CO₂/CH₄ separation