Ein Chitin‐MOF‐Kompositmaterial mit hierarchischem Porensystem für Anwendungen in der Luftfiltration

Wisser, Dorothea; Wisser, Florian M.; Raschke, Silvia; Klein, Nicole; Leistner, Matthias; Grothe, Julia; Brunner, Eike; Kaskel, Stefan

doi:10.1002/ange.201504572

Cited by 12 publications

(3 citation statements)

References 52 publications

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“…Evolution in nature ingeniously integrates multilevel porous structures for energy-efficient mass transfer; for example, woods possess hierarchically porous structures ranging from nanoscale cell walls to macroscale wood stems, contributing to highly efficient water and nutrient transport. [9] As such, designing and constructing hierarchical architectures of porous materials, ranging from micro-to macroscopic dimensions, [10] to accelerate mass transfer and maximize porosity utilization is a promising strategy for efficient iodine capture.…”

Section: Introductionmentioning

confidence: 99%

Hierarchically Porous Poly(ionic liquid) – Organic Cage Composite Membrane for Efficient Iodine Capture

Zhao

Liu

Sun

2022

Chemistry A European J

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The effective capture of iodine with high volatility and poisonousness is significant for reprocessing the spent nuclear fuel. In this article, we report a hierarchically porous poly(ionic liquid)-organic cage composite membrane (PIL@CC3) possessing a gradient content distribution of CC3 cage crystals throughout the membrane to capture iodine vapor. The introduction of microporous CC3 can significantly enhance the uptake capacity of iodine up to 980 mg g À 1 , which is superior to that of a pristine PIL membrane carrying large meso-and macropores (99 mg g À 1 ), and CC3 crystalline powder (662 mg g À 1 ). Such enhanced performance benefits from the micro-meso-macroporous structure of the PIL@CC3 membrane in which the large meso-and macropores facilitate the mass transfer of iodine molecules from the external environment into the surface of the CC3 crystal, followed by diffusion of iodine molecules from the CC3 surface into the interior and exterior pores of the CC3 crystal. In addition, the asymmetric distribution of CC3 crystals across the PIL@CC3 membrane also displays its advantage in intercepting trace iodine, revealing its great potential for practical application. This study provides an idea for constructing hierarchically porous membrane composites for the removal of toxic vapors.

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Section: Introductionmentioning

confidence: 99%

Hierarchically Porous Poly(ionic liquid) – Organic Cage Composite Membrane for Efficient Iodine Capture

Zhao

Liu

Sun

2022

Chemistry A European J

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“…[10,11] Therefore, in this work we have combined a macro-and mesoporous chitin (CH) [12][13][14][15] biopolymer with the MOF-808 microporous metal-organic framework (MOF) [16,25,[17][18][19][20][21][22][23][24] sorbent to create a porous composite with multiple porosities and chemical functionalities. [28][29][30] CH is the second most abundant natural polymer. [31,32] It can be easily handled and processed as macro-and mesoporous gel, [33][34][35][36] which enables its use as sorbent for macromolecules (e. g., enzymes and proteins).…”

Section: Introductionmentioning

confidence: 99%

Chitin/Metal‐Organic Framework Composites as Wide‐Range Adsorbent

et al. 2021

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Composites based on chitin (CH) biopolymer and metal-organic framework (MOF) microporous nanoparticles have been developed as broad-scope pollutant absorbent. Detailed characterization of the CH/MOF composites revealed that the MOF nanoparticles interacted through electrostatic forces with the CH matrix, inducing compartmentalization of the CH macropores that led to an overall surface area increase in the composites. This created a micro-, meso-, and macroporous structure that efficiently retained pollutants with a broad spectrum of different chemical natures, charges, and sizes. The unique prospect of this approach is the combination of the chemical diversity of MOFs with the simple processability and biocompatibility of CH that opens application fields beyond water remediation.

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“…MOFs with three-dimensional networks usually attains massive pore volumes, large surface areas, uniform pore sizes and stable pore structures. These highly porous materials have been widely adopted in the field of gas storage [124], liquid adsorption/purification [125], filtration [126] and catalysis [127]. Among these applications,…”

Section: Metal-organic Framework (Mofs)mentioning

confidence: 99%

Synthesisation, characterisation and water adsorption on novel functional metal organic frameworks for heat transformation process

Han¹

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Referring to the present situation of the global climate condition, the reduction of the energy consumption is always of great importance in combatting the grave situation of enhanced global warming potential (GWP). Adsorption-assisted heat transformation (AHT) systems such as chillers, heat pumps and desalination can predominantly help us to reduce the global warming.Therefore, the adsorption devices should be improved with the use of highly efficient adsorbents.

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Ein Chitin‐MOF‐Kompositmaterial mit hierarchischem Porensystem für Anwendungen in der Luftfiltration

Cited by 12 publications

References 52 publications

Hierarchically Porous Poly(ionic liquid) – Organic Cage Composite Membrane for Efficient Iodine Capture

Hierarchically Porous Poly(ionic liquid) – Organic Cage Composite Membrane for Efficient Iodine Capture

Chitin/Metal‐Organic Framework Composites as Wide‐Range Adsorbent

Synthesisation, characterisation and water adsorption on novel functional metal organic frameworks for heat transformation process

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