Description

Key Properties & Advantages
MIL-53(Fe)??s versatility stems from its intrinsic structural and chemical features:

Tunable Pore Structures: Exhibits flexible porosity with adjustable pore sizes, enabling selective adsorption and interaction with target molecules (e.g., gases, heavy metals, organic compounds) based on application needs.
Multifunctional Activity: Integrates gas adsorption, catalytic, photocatalytic, and adsorption capabilities, eliminating the need for multiple materials in complex processes.
Chemical & Thermal Stability: Maintains structural integrity in aqueous and organic environments, under varying pH conditions, and at elevated temperatures??critical for long-term use in industrial reactors and environmental systems.
Sustainability: Iron-based composition reduces reliance on rare metals, lowering material costs and environmental impact compared to noble metal-based alternatives.
Enhanced Derivatives: Innovations like CS/MIL-53(Fe) (in-situ grown on carbon sponges) overcome traditional MOF drawbacks (low photocatalytic efficiency, poor stability, difficult recovery), expanding practical applicability.
Applications Across Industries
Gas Separation & Storage
Selective Gas Adsorption: Efficiently adsorbs CO? and CH?, enabling precise separation of mixed gases in industrial processes (e.g., natural gas purification, biogas upgrading, and carbon capture from flue gases). Its tunable pores enhance selectivity, reducing energy consumption in separation workflows.
Catalysis & Energy Conversion
Heterogeneous Catalysis: Serves as an effective catalyst for organic reactions (e.g., oxidation, coupling reactions) and hydrogen production via formic acid decomposition, leveraging iron active sites for high reactivity and selectivity.
Photocatalytic Hydrogen Evolution: When combined with semiconductors, enhances visible-light-driven photocatalytic hydrogen production, supporting renewable energy research and green fuel development.
Energy-Efficient Systems
Adsorption Refrigeration & Thermal Conversion: Its reversible adsorption/desorption properties enable energy-efficient applications in adsorption refrigeration systems, heat pumps, and thermal energy storage devices, offering eco-friendly alternatives to conventional compression-based technologies.
Environmental Remediation
Heavy Metal Removal: Effectively adsorbs heavy metal ions (e.g., Cr(VI), Pb2?) from wastewater, reducing environmental contamination and supporting water purification efforts.
Leather Tanning Optimization: Reduces chromium usage in leather processing while improving leather quality (e.g., tensile strength, softness), aligning with sustainable manufacturing practices.
Cr(VI) Reduction: The innovative CS/MIL-53(Fe) photocatalyst achieves high-efficiency reduction of toxic Cr(VI) to non-toxic Cr(III) under visible light, addressing traditional MOF limitations with enhanced stability, recyclability, and catalytic efficiency.
Analytical Chemistry
Solid-Phase Microextraction (SPME): Functions as a superior coating for SPME fibers, enabling sensitive extraction of small organic molecules (e.g., volatile organic compounds, pesticides) in environmental and food analysis.
Chromatography: Serves as packing material for reverse-phase chromatography columns, facilitating precise separation of isomers (e.g., positional isomers of aromatic compounds) with high resolution.
Small Molecule Adsorption: Acts as an adsorbent for sample pre-treatment, concentrating trace analytes to improve detection limits in analytical workflows.
Innovation Highlight: CS/MIL-53(Fe) Photocatalyst
Traditional MOFs often suffer from low photocatalytic efficiency, poor stability in aqueous systems, and difficulty in recovery post-reaction. Our CS/MIL-53(Fe) derivative addresses these issues through:

In-situ Growth on Carbon Sponges: The 3D carbon sponge matrix enhances electron transfer, boosting photocatalytic activity under visible light.
Improved Stability: Carbon sponge support prevents MOF aggregation and leaching, maintaining performance over multiple reaction cycles.
Easy Recovery: Macroscopic sponge structure enables simple retrieval via filtration or sieving, reducing material loss and operational costs.

This innovation makes CS/MIL-53(Fe) particularly effective for environmental applications like Cr(VI) remediation, where efficiency, stability, and recyclability are critical.
Technical Specifications
CAS Number: 764608-47-1
Chemical Composition: Iron(III)-based metal-organic framework with terephthalate ligands (typical formula: Fe(III)(OH)(bdc), where bdc = 1,4-benzenedicarboxylate)
Appearance: Fine powder (color varies from light brown to reddish-brown)
Purity: ??95% (research grade)
Pore Characteristics: Tunable pore size (typically 0.8?C1.2 nm) and high BET surface area
Solubility: Insoluble in water and most organic solvents
Quality Assurance
Each batch of MIL-53(Fe) undergoes rigorous characterization, including:

X-ray diffraction (XRD) to confirm structural integrity.
Nitrogen adsorption-desorption analysis to verify surface area and pore size distribution.
Stability testing under relevant operational conditions (pH, temperature, solvent exposure).

Research-grade material. For laboratory and industrial use only.