Cellulose nanofiber membrane modified with functionalized MIL-101 for enhanced hydrogen separation

Zhou, Yichen; Hu, Zhirong; Yu, Mengjiao; Zhang, Lu; Yao, Jianfeng

doi:10.1007/s10570-022-04877-z

Cited by 7 publications

(2 citation statements)

References 34 publications

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“…Compared with traditional carriers, like Al 2 O 3 , SiO 2 , ceramics, molecular sieves, etc., metal–organic frameworks (MOFs) emerge as outstanding carriers for various active centers due to their stable physicochemical properties and ultrahigh specific surface area. − More importantly, the vacant orbitals of the isolated metal sites can effectively interact with POM anions, ensuring a uniform dispersion of the active POM-ILs. MIL-101 is a representative MOF material with a larger specific surface area and separated Cr(III) sites, ensuring the uniform dispersion of POM-ILs with high stability. − Furthermore, this carrier can act as an efficient absorbent for sulfides in oils, leading to the establishment of locally raised concentrations of sulfides on its surface. , Then, accelerated reaction activity should be realized with the existence of increased concentration of sulfides on the surface of isolated POM-IL active center, establishing adsorption coupled with oxidative desulfurization reaction system. Furthermore, there is no requirement to introduce additional extractants or absorbents to eliminate the oxidized sulfones, receiving deep desulfurization under solvent-free and moderate reaction conditions.…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic Catalysts Comprising Phosphomolybdic Acid Fastened on MIL-101(Cr): Enabling Efficient Oxidative Desulfurization under Solvent-Free and Moderate Reaction Conditions

Zhang,

Wu,

Yesire

et al. 2024

Energy Fuels

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Constructing durable catalysts with high performance offers a novel approach for removing refractory sulfides, such as dibenzothiophene (DBT) and its derivatives, through a catalytic oxidation process. Judging by this strategy, the phosphomolybdic acid ionic liquid was fastened onto the surface pore of MIL-101, which features a large specific surface area and isolated metal sites. Systematic characterization techniques reveal that a good dispersion of the active center on the carrier could be realized, receiving promising catalysts. The as-designed catalyst could inherit the hydrophilicity from the carrier and the lipophilicity from the active center, obtaining a catalyst with an amphiphilic property. Furthermore, the efficient adsorption of sulfides from the oil phase by the carrier could ensure an elevated sulfide concentration on the surface of the amphiphilic catalyst. The two aforementioned distinctive features of the constructed catalyst indicate its promising catalytic oxidation ability for stubborn DBT and its derivatives without the addition of any additional extractant. With optimal reaction parameters, a 99.8% removal of DBT could be accomplished, resulting in oil with a sulfur concentration of less than 1 ppm. Meanwhile, this desulfurization system is also effective for different types of oils. The basically unchanged sulfur removal ability and structure of the catalyst indicate its outstanding durability. Additionally, both the hydroxyl radical and superoxide radical have been verified to play indispensable roles during the desulfurization process.

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Section: Introductionmentioning

confidence: 99%

Amphiphilic Catalysts Comprising Phosphomolybdic Acid Fastened on MIL-101(Cr): Enabling Efficient Oxidative Desulfurization under Solvent-Free and Moderate Reaction Conditions

Zhang,

Wu,

Yesire

et al. 2024

Energy Fuels

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“…One effective approach to improving the separation performance of membranes is to incorporate appropriate additives in a polymer matrix, forming composite or mixed matrix membranes. The most common fillers for capturing CO 2 include inorganic materials, such as zeolite , and metal–organic frameworks, − and organic and porous carbon materials, such as cellulose, − carbon nanotubes, and graphene oxide. , Majority of research studies have been focused on the use of inorganic and porous carbon-based additives; ,− few works have investigated the integration of biomaterial additives such as nanocellulose.…”

Section: Introductionmentioning

confidence: 99%

Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO₂/CH₄ Separation

Narkkun,

Kraithong,

Ruangdit

et al. 2023

ACS Omega

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Recent Advancements in Metal‐Organic Framework‐Based Membranes for Hydrogen Separation: A Review

Baig,

Waheed,

Jillani

2023

Chemistry An Asian Journal

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Metal‐organic frameworks (MOFs) are promising porous materials that have huge potential for gas separation when put in the membrane configuration. MOFs have huge potential of the MOFs such as excellent pore size, ease of tuning the pore chemistry, higher surface area, and chemical and thermal stabilities, MOFs have been explored for various gas separation and storage applications. This review discusses various approaches for fabricating MOFs‐based membranes for the separation of H2 gas from a variety of feeds having various gases CO2, CO, N2, and CH4 as impurities. The emphasis has been put on three types of membranes for H2 separation which include MOFs‐based hollow fibrous/tubular/disk membranes, MOFs‐based mixed matrix membranes (MMMs), and MOFs‐based stand‐alone membranes. In addition, various challenges such as reducing inhomogeneity between MOFs and polymeric matrices have also been discussed. Similarly, the approaches to successfully decorating MOFs on different supports in different configurations have been explained. The possible ways of improving the MOFs‐based membranes for H2 have also been discussed.

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Cellulose nanofiber membrane modified with functionalized MIL-101 for enhanced hydrogen separation

Cited by 7 publications

References 34 publications

Amphiphilic Catalysts Comprising Phosphomolybdic Acid Fastened on MIL-101(Cr): Enabling Efficient Oxidative Desulfurization under Solvent-Free and Moderate Reaction Conditions

Amphiphilic Catalysts Comprising Phosphomolybdic Acid Fastened on MIL-101(Cr): Enabling Efficient Oxidative Desulfurization under Solvent-Free and Moderate Reaction Conditions

Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO₂/CH₄ Separation

Recent Advancements in Metal‐Organic Framework‐Based Membranes for Hydrogen Separation: A Review

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Cellulose nanofiber membrane modified with functionalized MIL-101 for enhanced hydrogen separation

Cited by 7 publications

References 34 publications

Amphiphilic Catalysts Comprising Phosphomolybdic Acid Fastened on MIL-101(Cr): Enabling Efficient Oxidative Desulfurization under Solvent-Free and Moderate Reaction Conditions

Amphiphilic Catalysts Comprising Phosphomolybdic Acid Fastened on MIL-101(Cr): Enabling Efficient Oxidative Desulfurization under Solvent-Free and Moderate Reaction Conditions

Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO2/CH4 Separation

Recent Advancements in Metal‐Organic Framework‐Based Membranes for Hydrogen Separation: A Review

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Pebax/Modified Cellulose Nanofiber Composite Membranes for Highly Enhanced CO₂/CH₄ Separation