The characteristics of water vapor adsorption depend on the structure, porosity, and functional groups of the material. Metal-organic framework (MOF)-derived carbon (MDC) is a novel material that exhibits a high specific area and tunable pore sizes by exploiting the stable structure and porosity of pure MOF materials. Herein, two types of aluminum-based MOFs were used as precursors to synthesize hydrophobic microporous C-MDC and micro-mesoporous A-MDC via carbonization and activation depending on the type of ligands in the precursors. C-MDC and A-MDC have different pore characteristics and exhibit distinct water adsorption properties. C-MDC with hydrophobic properties and micropores exhibited negligible water adsorption (108.54 mgg) at relatively low pressures (/~0.3) but showed a rapid increase in water adsorption ability (475.7 mgg) at relative pressures of about 0.6. A comparison with the isotherm model indicated that the results were consistent with the theories, which include site filling at low relative pressure and pore filling at high relative pressure. In particular, the Do-Do model specialized for type 5 showed excellent agreement.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10458837 | PMC |
| http://dx.doi.org/10.3390/nano13162351 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pure CO and impure CO-SO-NO-O reactions with carbon storage site underlying seals: Coaly mudstones and carbonate cemented sandstones.
Sci Total Environ
January 2025
School of the Environment, University of Queensland, QLD, Australia.
The transition to net zero emissions requires the capture of carbon dioxide from industrial point sources, and direct air capture (DAC) from the atmosphere for geological storage. Dissolved CO has reactivity to rock core, and while the majority of previous studies have concentrated on reservoir rock or cap-rock reactivity, the underlying seal formation may also react with CO. Drill core from the underlying seal of a target CO storage site was reacted at in situ conditions with pure CO, and compared with an impure CO stream with SO, NO and O that could be expected from hard to abate industries.
View Article and Find Full Text PDFEfficient Hg(Ⅱ) removed by l-cysteine modified UiO-66 through chemical adsorption via a facile partial ligand replacement strategy.
J Colloid Interface Sci
January 2025
College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225000 PR China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095 PR China; Institutes of Agricultural Science and Technology Development, Yangzhou 225127 Jiangsu, PR China.
In this work, UiO-66-l-cys with enhanced adsorption capacity for Hg(Ⅱ) in water was synthesized through a facile two-step partial ligand replacement strategy. The presence of the functional groups significantly enhanced the capacity of the material for Hg(Ⅱ). According to the Langmuir model, the maximum theoretical adsorption capacity was calculated to be 1321.
View Article and Find Full Text PDFCO-driven ion exchange for ammonium recovery from source-separated urine.
Water Res
January 2025
Georgia Tech Shenzhen Institute (GTSI), Tianjin University, Shenzhen 518067, China. Electronic address:
Nitrogen recovery from urine and CO utilization are both vital for achieving a circular economy and mitigating climate change. Divided engineering solutions have been proposed to address either problem, but there is still a lack of integrated technologies to simultaneously tackle the two tasks. We demonstrated CO-driven ion exchange for nitrogen recovery (CIXNR) from urine and evaluated the process in Malawi.
View Article and Find Full Text PDFImpact of residual aluminum on nanofiltration gypsum scaling: Mitigation roles played by different species.
Water Res
January 2025
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China. Electronic address:
Residual aluminum (Al) is a growing pollutant in nanofiltration (NF) membrane-based drinking water treatment. To investigate the impact of distinct Al species fouling layers on gypsum scaling during NF, gypsum scaling tests were conducted on bare and three Al-conditioned (AlCl-, Al, and Al-) membranes. The morphology of gypsum, the role of Al species on Ca adsorption during gypsum scaling, and the interactions between gypsum crystals and Al-conditioned membranes were investigated.
View Article and Find Full Text PDFToward Surface Passivation of Black Phosphorus via a Self-Assembled Ferrocene Molecular Layer.
Langmuir
January 2025
School of Physics, East China University of Science and Technology, Shanghai 200237, China.
Black phosphorus (BP), a promising two-dimensional material, faces significant challenges for its applications due to its instability in air and water. Herein, molecular dynamics simulations reveal that a self-assembled ferrocene (FeCp) molecular layer can form on BP surfaces and remain stable in aqueous environments, predicting its effectiveness for passivation. This theoretical finding is corroborated by X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy, and optical microscopy observations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!