Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Nitrogen-rich small molecules are frequently doped into porous materials to enhance their iodine adsorption properties. To explore how imidazole confinement in metal-organic frameworks (MOFs) affects iodine adsorption, we obtained a UiO-66-based composite by embedding imidazole in UiO-66 pores via solid-phase adsorption (Im@UiO-66). Characterization confirmed that imidazole was successfully confined within the UiO-66 pores, with each unit of UiO-66 accommodating up to 27 imidazole molecules. The density functional theory (DFT) calculations suggested that the octahedral cages of UiO-66 are the primary sites for iodine capture. The adsorption studies revealed that Im@UiO-66 achieved maximum adsorption capacities for I and CHI that were 12 and 7.9 times higher than those of UiO-66, respectively, reaching 6.42 g/g for I and 553 mg/g for CHI. The spectroscopic analysis indicated that Im@UiO-66 absorbed iodine vapor and methyl iodide via charge-transfer interactions and -methylation reactions. This study demonstrates that imidazole confinement can effectively enhance the adsorption performance of MOF-based materials, offering valuable insights for the design of iodine adsorbents.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.inorgchem.4c04162 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A rapidly synthesized magnetic microporous organic network for ultrasensitive detection of non-steroidal anti-inflammatory drugs in fish.
J Chromatogr A
September 2025
Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China. Electronic address:
Non-steroidal anti-inflammatory drugs (NSAIDs) residues pose a potential threat to aquatic ecosystems and food safety. In this work, novel imine bond/pyridine nitrogen-rich magnetic microporous organic networks (MMONs-Br and MMONs-I) were synthesized via a facile one-pot strategy using brominated and iodinated precursors for the detection of NSAIDs in fish. Brunauer-Emmett-Teller analysis revealed a striking 11-fold difference in specific surface areas between the two materials (MMONs-Br: 293.
View Article and Find Full Text PDFThe impact of hemodiafiltration with endogenous reinfusion (HFR) on micronutrient status in patients undergoing maintenance hemodialysis: A randomized crossover trial.
Clin Nutr
August 2025
Department of Nephrology, Naval Medical Center of the People's Liberation Amy (PLA), Naval Medical University, Shanghai, China. Electronic address:
Background: Micronutrient deficiencies are common in patients undergoing maintenance hemodialysis (MHD), potentially contributing to adverse clinical outcomes. Hemodiafiltration with endogenous reinfusion (HFR) integrates convection, diffusion, and adsorption, potentially preserving essential nutrients better than traditional online hemodiafiltration (HDF). This study aimed to compare the acute effects of HFR and HDF on serum micronutrient concentrations in MHD patients.
View Article and Find Full Text PDF"Fight Fire with Fire": Trace-Water-Induced Controllable Synthesis of Hydrophobic Armors to Stabilize Metal-Organic Cage-Based Crystalline Frameworks.
Small
September 2025
Department State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China.
Metal-organic cage-based crystalline frameworks (MCFs) are distinguished for high porosity and diverse functionality, while their applications are constrained by degradation in wet environments. Inspired by the "fight fire with fire" method in traditional Chinese medicine, trace-water-induced synthesis of armors is proposed to stabilize MCFs. Water at ppm concentration is enriched on the hydrophilic surface of MCFs, and then polymerizes with diisocyanate under the catalysis of MCFs to form hydrophobic shells.
View Article and Find Full Text PDFPrecise Identification of Radioactive Iodine within Interlayer Molecular Cages of Metal-Organic Frameworks.
J Am Chem Soc
August 2025
School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China.
Obtaining direct structural evidence to elucidate the intricate interactions between iodine and adsorbents remains a significant challenge in the development of more effective iodine capture platforms. To address this issue, we report a 2D Co-tib MOF with adaptive interlayer cages that enable precise iodine binding via synergistic I···π, I···H-phenyl, and I···N halogen bonds, as directly observed by single-crystal XRD. Importantly, the 1D pores formed by the Co-tib layered structure enhance the diffusion of I, facilitating its adaptive binding.
View Article and Find Full Text PDFUnlocking the Comparative Potential of Porous Frameworks: A Review on MOFs and COFs for Gas Sorption.
Top Curr Chem (Cham)
August 2025
School of Environmental Engineering, University of Seoul, Seoul, Republic of Korea.
Gases are integral to Earth's climate and ecosystem balance, but human activity has significantly altered atmospheric composition by increasing greenhouse gas emissions. In 2025, carbon dioxide emissions were estimated at around 39-41 billion tons, reflecting a continued increase. Emissions of carbon monoxide, sulfur dioxide, and nitrogen dioxide were expected to remain close to 2.
View Article and Find Full Text PDF