Graphene-containing microporous composites for selective CO2 adsorption

Szczęśniak, Barbara; Choma, J.

doi:10.1016/j.micromeso.2019.109761

Cited by 47 publications

(25 citation statements)

References 29 publications

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“…3, the nitrogen adsorption–desorption isothermal curves of selected samples appeared as I‐type characteristics at the activation temperature of 750 °C, with no obvious differences in diameter among samples. The adsorption capacity of N 2 increased sharply in the lower‐pressure region ( P / P 0 < 0.05), and appeared as a high adsorption plateau at higher relative pressures, indicating micropore domination and excellent CO 2 adsorption capacities 25,26 …”

Section: Resultsmentioning

confidence: 99%

“…The adsorption capacity of N 2 increased sharply in the lower-pressure region (P/P 0 < 0.05), and appeared as a high adsorption plateau at higher relative pressures, indicating micropore domination and excellent CO 2 adsorption capacities. 25,26 Figure 4(a) shows that only the isotherms of SAG-Fe-10%-800 turned into a combination of type I and IV isotherms, and only SAG-Fe-10%-800 had more mesopores, with an average pore size of about 3.27 nm (Fig. 4b).…”

Section: Brunauer-emmet-teller Analysismentioning

confidence: 99%

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Insights into forming behavior and CO₂ adsorption properties of graphene from Sargassum horneri by Fe(NO₃)₃/KOH activation

Zeng

Lou

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND Macroalgae biomass as a graphene source shows great potential at large scale in an energy shortage era. To achieve a more moderate and economic graphene synthesis method, porous graphenes were synthesized using Sargassum horneri as precursor, in combination with Fe(NO3)3 and KOH composite. RESULTS The addition of 10 wt% Fe(NO3)3 obviously accelerated KOH activation and decreased KOH loading and reaction temperature. Meanwhile, the graphene synthesized by Fe(NO3)3/KOH had better regeneration performance than that activated merely by KOH, even under more moderate thermal condition. The porous graphene displayed high specific surface area (~2311 m2 g−1) and exhibited good CO2 uptake capacity (~4.39 mmol g−1) at 30 °C and 1 bar. The CO2 adsorption rate equations of the graphene were consistent with the intraparticle diffusion model, indicating that CO2 adsorption was mainly controlled by the pore structure and additionally influenced by the chemical functional groups. CONCLUSION The present work focuses on the high value‐added comprehensive utilization of macroalgae, which not only has important significance for on‐scale preparation of bio‐originated graphene and CO2 adsorption, but also has positive benefits for macroalgae resource development. © 2022 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 99%

Section: Brunauer-emmet-teller Analysismentioning

confidence: 99%

Insights into forming behavior and CO₂ adsorption properties of graphene from Sargassum horneri by Fe(NO₃)₃/KOH activation

Zeng

Lou

et al. 2022

J of Chemical Tech & Biotech

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“…More recently, polypyrrole-derived carbon/GO, polyaniline-derived carbon/GO, and HKUST-1/GO composites were evaluated with respect to their molar (aka ideal) CO 2 /N 2 adsorption selectivities . HKUST-1/GO containing ca.…”

Section: Applicationsmentioning

confidence: 99%

Graphene-Based Metal–Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologies

et al. 2022

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Current energy and environmental challenges demand the development and design of multifunctional porous materials with tunable properties for catalysis, water purification, and energy conversion and storage. Because of their amenability to de novo reticular chemistry, metal–organic frameworks (MOFs) have become key materials in this area. However, their usefulness is often limited by low chemical stability, conductivity and inappropriate pore sizes. Conductive two-dimensional (2D) materials with robust structural skeletons and/or functionalized surfaces can form stabilizing interactions with MOF components, enabling the fabrication of MOF nanocomposites with tunable pore characteristics. Graphene and its functional derivatives are the largest class of 2D materials and possess remarkable compositional versatility, structural diversity, and controllable surface chemistry. Here, we critically review current knowledge concerning the growth, structure, and properties of graphene derivatives, MOFs, and their graphene@MOF composites as well as the associated structure–property–performance relationships. Synthetic strategies for preparing graphene@MOF composites and tuning their properties are also comprehensively reviewed together with their applications in gas storage/separation, water purification, catalysis (organo-, electro-, and photocatalysis), and electrochemical energy storage and conversion. Current challenges in the development of graphene@MOF hybrids and their practical applications are addressed, revealing areas for future investigation. We hope that this review will inspire further exploration of new graphene@MOF hybrids for energy, electronic, biomedical, and photocatalysis applications as well as studies on previously unreported properties of known hybrids to reveal potential “diamonds in the rough”.

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“…Recently, HKUST-1/GO composites with different contents of graphene oxide were reported by Szczesńiak et al, 70 and the selective adsorptions of methane and carbon dioxide over the prepared composites were investigated. After a first partial increase, the authors observed that the composite surface area and total pore volume were decreased with increasing GO loading in the MOF composite.…”

Section: Mof/carbon-based Composite Materialsmentioning

confidence: 99%

Recent Advances in Adsorption and Separation of Methane and Carbon Dioxide Greenhouse Gases Using Metal–Organic Framework-Based Composites

Roohollahi

Zeinalzadeh

Kazemian

2022

Ind. Eng. Chem. Res.

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The development of materials and methods efficient for carbon capturing, methane storage, and selective separation of CO 2 and CH 4 from gas mixtures is a crucial approach to addressing the problems of these two greenhouse gases. In this regard, metal organic framework (MOF)-based composite materials are recognized as a promising class of materials, which could combine the advantages of MOFs and the other constituents to reduce their current drawbacks in the adsorption/separation systems. In this context, a series of MOF composites recently developed for CO 2 and CH 4 adsorption and their selective separation from gas mixtures are presented and discussed: MOF/carbon-based materials, MOF/Si-based composites, MOF mixed-matrix membranes, MOF/MOF, and MOF/metal oxide structures. Here, with an emphasis on the most recent signs of progress, we hope to shed a light on the MOF composites and assist future research to promote the performance of current composites and develop new MOF hybrid structures considering the proposed challenges.

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Graphene-containing microporous composites for selective CO2 adsorption

Cited by 47 publications

References 29 publications

Insights into forming behavior and CO₂ adsorption properties of graphene from Sargassum horneri by Fe(NO₃)₃/KOH activation

Insights into forming behavior and CO₂ adsorption properties of graphene from Sargassum horneri by Fe(NO₃)₃/KOH activation

Graphene-Based Metal–Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologies

Recent Advances in Adsorption and Separation of Methane and Carbon Dioxide Greenhouse Gases Using Metal–Organic Framework-Based Composites

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Graphene-containing microporous composites for selective CO2 adsorption

Cited by 47 publications

References 29 publications

Insights into forming behavior and CO2 adsorption properties of graphene from Sargassum horneri by Fe(NO3)3/KOH activation

Insights into forming behavior and CO2 adsorption properties of graphene from Sargassum horneri by Fe(NO3)3/KOH activation

Graphene-Based Metal–Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologies

Recent Advances in Adsorption and Separation of Methane and Carbon Dioxide Greenhouse Gases Using Metal–Organic Framework-Based Composites

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Product

Resources

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Insights into forming behavior and CO₂ adsorption properties of graphene from Sargassum horneri by Fe(NO₃)₃/KOH activation

Insights into forming behavior and CO₂ adsorption properties of graphene from Sargassum horneri by Fe(NO₃)₃/KOH activation