Description

Key Properties & Advantages
NH?-MIL-101(Fe)??s versatility stems from its amino-functionalized structure and synergy between MIL-101(Fe)??s core strengths and -NH? group functionality:

Amino-Enhanced Surface Reactivity: The introduced -NH? groups enable:
Strong hydrogen bonding and acid-base interactions with polar molecules (e.g., CO?, carboxylic acids), boosting selectivity in adsorption and catalysis.
Covalent coupling with electrophilic compounds (e.g., via Schiff base formation), facilitating targeted functionalization for drug delivery or sensing.
Improved hydrophilicity, enhancing compatibility with aqueous environments??critical for water purification and biomedical applications.
Inherited High Porosity & Surface Area: Retains MIL-101(Fe)??s well-ordered mesoporous network, featuring a large BET surface area (typically 2000?C3000 m2/g) and hierarchical pores (micropores ~1.2 nm, mesopores ~3.4 nm). This structure ensures efficient mass transport and high adsorption capacity.
Robust Stability: Maintains structural integrity in aqueous solutions (pH 3?C9), organic solvents, and moderate temperatures (up to 250??C), outperforming many MOFs in practical operational conditions. Iron??s redox activity further enhances stability in catalytic cycles.
Iron-Mediated Activity: Fe(III) nodes provide Lewis acid sites and redox capabilities, complementing amino groups to enhance catalytic activity in oxidation reactions and pollutant degradation.
Batch-to-Batch Consistency: KAR-F49-NH? undergoes rigorous testing to minimize variation in amino group density, surface area, and porosity??essential for scaling from lab research to industrial processes.
Core Applications
CO? Capture & Gas Separation
Selective CO? Adsorption: Amino groups strongly interact with CO? via acid-base interactions, enabling efficient capture from flue gases, biogas, or ambient air. Its high surface area ensures high adsorption capacity (typically 3?C5 mmol/g at 298K, 1 bar), while hierarchical pores facilitate rapid adsorption-desorption cycles.
Gas Mixture Separation: Enhances selectivity for CO? over N?, CH?, or H? in mixed streams, supporting natural gas purification and hydrogen fuel processing.
Organic Catalysis
Oxidation Reactions: Synergy between Fe(III) nodes and amino groups promotes activity in selective oxidation of alcohols, alkenes, and sulfides??often with high yields and minimal byproducts.
Base-Catalyzed Reactions: Amino groups act as active sites for Knoevenagel condensation, Michael addition, and CO? fixation reactions, eliminating the need for toxic homogeneous bases.
Catalyst Support: Anchors metal nanoparticles (e.g., Pd, Au) via amino-metal coordination, stabilizing catalysts for hydrogenation or cross-coupling reactions.
Heavy Metal Ion Adsorption
Water Purification: Amino groups chelate with toxic heavy metal ions (e.g., Hg2?, Cd2?, Pb2?) via donor-acceptor interactions, while the porous structure enables high adsorption capacity (up to 200?C400 mg/g for select metals). Its stability in aqueous media allows for repeated use in wastewater treatment.
Targeted Drug Delivery Systems
Biocompatible Carrier: Iron-based composition (low toxicity) and porous structure enable encapsulation of small-molecule drugs or biomolecules.
Controlled Release: Amino groups facilitate pH-responsive release (e.g., in acidic tumor microenvironments) or targeted delivery via conjugation with antibodies/peptides, improving therapeutic efficacy and reducing side effects.
Technical Specifications
Parameter Details
CAS Number 1189182-85-1
Chemical Composition Fe(III) clusters linked by 2-amino terephthalate ligands (typical formula: Fe?O(NH?-bdc)?(H?O)?, where NH?-bdc = 2-amino terephthalate)
Appearance Orange to reddish-brown crystalline powder
BET Surface Area 2000?C3000 m2/g
Pore Structure Hierarchical (micropores ~1.2 nm, mesopores ~3.4 nm)
Amino Group Density 0.5?C1.0 mmol/g (verified by elemental analysis)
Stability Stable in water (pH 3?C9), organic solvents, and temperatures up to 250??C
Quality Assurance
Each batch of KAR-F49-NH? undergoes comprehensive characterization:

X-ray diffraction (XRD) to confirm structural integrity.
Nitrogen adsorption-desorption analysis to verify surface area and pore size distribution.
FTIR spectroscopy and elemental analysis to quantify amino group density.
Adsorption/catalysis performance testing (for selected batches) to validate functionality.

A certificate of analysis (CoA) is provided with each order, ensuring compliance with performance standards.