Versatility vs stability. Are the assets of metal–organic frameworks deployable in aqueous acidic and basic media?

Moumen, Elmehdi; Assen, Ayalew H.; Adil, Karim; Belmabkhout, Youssef

doi:10.1016/j.ccr.2021.214020

Cited by 39 publications

(24 citation statements)

References 173 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The poor water stability of many MOFs has been a bottleneck in the deployment of this class of materials for water sorption, while the structural designability of the frameworks permitted extensive research and hence the development of various chemically stable MOFs. The mechanistic explanations for the stability of different classes of MOFs upon exposure to water under various conditions have been explained in the literature . Due to the possibility of varying MOFs’ building units and hence the degree of hydrophobicity or hydrophilicity, a range of water sorption isotherm behavior is observed for the adsorbents.…”

Section: Water Adsorption By Different Classes Of Porous Materialsmentioning

confidence: 99%

“…The mechanistic explanations for the stability of different classes of MOFs upon exposure to water under various conditions have been explained in the literature. 152 Due to the possibility of varying MOFs' building units and hence the degree of hydrophobicity or hydrophilicity, a range of water sorption isotherm behavior is observed for the adsorbents. The watersorption isotherms vary widely in shapes, the onset of water loading, steepness, hysteresis, and inflection point.…”

Section: Water Adsorption By Different Classes Ofmentioning

confidence: 99%

See 1 more Smart Citation

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

et al. 2022

Self Cite

View full text Add to dashboard Cite

In recent years, the deployment of chemically stable physisorbents in various water sorption-related applications has received significant attention. Depending on their structural features, different types of porous sorbents manifest distinct shapes of water sorption isotherms. The translation of water sorption profiles of adsorbents into appropriate practical applications is yet to be established. This Review gives an overview of the water adsorption studies conducted on different hydrolytically stable porous solids selected from different classes of solid-state materials (organic, inorganic, and hybrid materials). Brief analyses of the water sorption behavior and the relations to materials' intrinsic structural features are made. Based on adsorbents' observed water sorption characteristics, the prospects of their practical/commercial deployment in chosen sectors are also commented. The criteria for using porous adsorbents in specific water-related technologies, which can help guide the design and assembly of suitable water adsorbents, are also reviewed. In addition, the challenges that need to be overcome in developing efficient water vapor adsorbents for a given application are also discussed.

show abstract

Section: Water Adsorption By Different Classes Of Porous Materialsmentioning

confidence: 99%

Section: Water Adsorption By Different Classes Ofmentioning

confidence: 99%

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…As an example, fine-tuning the pore aperture size, which is of major interest in gas separation and capture, is now possible contrary to other inorganic solid adsorbents, such as zeolites, inorganic oxides, and porous carbon-based materials. Overall, the versatile properties of MOFs make them highly competitive materials in many fields and, in particular, to address societal and environmental issues. ,,− ,− …”

Section: Introductionmentioning

confidence: 99%

Perspectives in Adsorptive and Catalytic Mitigations of NO_x Using Metal–Organic Frameworks

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…During the past two decades, extensive work has been performed on the synthesis and study of materials known as metal–organic frameworks (MOFs), which have emerged as a new family of crystalline hybrid organic/inorganic porous materials with outstanding performance in various potential applications including catalysis, , adsorption, − sensing, and so on, − due to their fascinating properties such as ultrahigh surface area, tunable porosity, and excellent thermal and chemical stability. − However, in some cases, their microsized pores and narrow channels inherently restrict their adsorption capacity. ,, …”

Section: Introductionmentioning

confidence: 99%

Mixed-Ligand Strategy for the Creation of Hierarchical Porous ZIF-8 for Enhanced Adsorption of Copper Ions

et al. 2022

Self Cite

View full text Add to dashboard Cite

The adsorption of heavy metals using metal–organic framework-based adsorption technology has been pointed out as a promising technique for the removal of these toxic elements from water. However, their adsorption capacity needs to be enhanced. Thus, the current work reports the effect of using a mixed-ligand strategy on the MOF framework and its effect on the removal of copper ions from water by adding terephthalic acid (BDC) linker to the ZIF-8precursors (2-methylimidazole (mI) and Zn 2+ ) under solvothermal synthesis, leading to the formation of a hierarchical microporous mesoporous MOF, named Zn-mI-BDC, which was characterized by SEM, EDX, XRD, TGA, BET, and FTIR. As a result, all of these techniques revealed that the addition of a controlled amount of BDC did not alter the crystallinity of ZIF-8, resulting in the creation of a pore size of 4.2 nm. The new hierarchical porous MOF was tested for the adsorption of copper and exhibited an enhanced adsorption capacity compared to pristine ZIF-8 and many other standard adsorbents. The adsorption isotherm matched well with the Langmuir isotherm model, suggesting that the adsorption process chemisorption had a dominant role in the adsorption of Cu 2+ species. Therefore, the current work is considered as an important step toward the use of a mixed-ligand strategy in enhancing the adsorption capacity of heavy metals using MOF materials.

show abstract

Versatility vs stability. Are the assets of metal–organic frameworks deployable in aqueous acidic and basic media?

Cited by 39 publications

References 173 publications

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

Perspectives in Adsorptive and Catalytic Mitigations of NO_x Using Metal–Organic Frameworks

Mixed-Ligand Strategy for the Creation of Hierarchical Porous ZIF-8 for Enhanced Adsorption of Copper Ions

Contact Info

Product

Resources

About

Versatility vs stability. Are the assets of metal–organic frameworks deployable in aqueous acidic and basic media?

Cited by 39 publications

References 173 publications

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

Water Vapor Adsorption by Porous Materials: From Chemistry to Practical Applications

Perspectives in Adsorptive and Catalytic Mitigations of NOx Using Metal–Organic Frameworks

Mixed-Ligand Strategy for the Creation of Hierarchical Porous ZIF-8 for Enhanced Adsorption of Copper Ions

Contact Info

Product

Resources

About

Perspectives in Adsorptive and Catalytic Mitigations of NO_x Using Metal–Organic Frameworks