Carbon Porous Beads (60–80 mesh) – Catalog #B2025761

Carbon Porous Beads with a defined 60–80 mesh size (approximately 177–250 μm diameter) are engineered adsorbent spheres featuring high porosity and large specific surface area. The mesh specification ensures consistent particle size, which is critical for reproducible adsorption kinetics and equilibrium studies. The hierarchical pore structure—with macro-, meso-, and micropores—enables efficient removal of organic molecules, dyes, and small-molecule impurities. This finely graded variant is ideal when uniform particle size and predictable flow properties are essential for your application.

Scientific Overview

Porous carbon beads are synthesized from carbonaceous precursors (biomass, polymers, or preceramic polymers) and then activated or processed to create a hierarchical pore network. The resulting material exhibits a large specific surface area (typically >500 m² g⁻¹) and a distribution of pore sizes that enables efficient transport and adsorption of diverse molecules. The 60–80 mesh size class represents fine particles that provide high surface area per unit volume while maintaining adequate flow properties in packed columns.

Compared to larger-mesh variants, the 60–80 mesh offers faster equilibration in batch studies and higher adsorption capacity per unit volume, making it particularly valuable for sorption isotherm measurements, competitive adsorption studies, and laboratory-scale purification where material efficiency is important.

Key applications include:

• Quantitative adsorption equilibrium and kinetic measurements
• Removal of dyes, pharmaceutical residues, and organic pollutants
• Sample preparation and cleanup for analytical workflows
• Comparative studies of adsorbent performance and selectivity
• Development and optimization of heteroatom-doped carbon adsorbents
• Packed-bed column experiments with defined particle size

Usage & Handling Guidance

Store in a cool, dry environment (2–8°C is recommended). Before use, lightly rinse the beads with appropriate solvent to remove dust, or proceed directly to activation if required by your protocol. The consistent mesh size ensures predictable settling and flow properties in both batch reactors and columns. For batch studies, weigh the desired mass, add to your solution, and stir gently; separate by filtration or centrifugation. For column packing, load the beads under gentle pressure to achieve uniform packing density without crushing.

• Mesh size advantage: Uniform particle size yields faster equilibration and more reproducible kinetic data than mixed-size adsorbents.
• Regeneration: Many carbon adsorbents can be regenerated by thermal treatment, solvent extraction, or chemical washing. Consult the COA/TDS for lot-specific regeneration guidance.
• Column performance: The 60–80 mesh size provides an optimal balance between surface area and backpressure; typical flow rates are 5–20 mL min⁻¹ cm⁻² depending on solution viscosity.
• Dust control: Gently handle to minimize fine particle generation and wear appropriate PPE if handling large quantities.

What You Get

• 12 g of porous carbon adsorbent beads, specified at 60–80 mesh
• Uniform particle size for reproducible adsorption kinetics and equilibrium studies
• High surface area and hierarchical pore structure for efficient molecule capture
• Sufficient material for multiple adsorption experiments, column studies, or comparative trials
• For research use only (RUO)

Why Researchers Choose It

• Defined mesh size ensures reproducibility across multiple experiments and research groups
• Fine particle size (60–80 mesh) optimizes surface area and adsorption kinetics
• Hierarchical pore structure balances capacity with transport efficiency
• Suitable for both fundamental sorption studies and applied purification workflows
• Thermally and chemically stable for diverse adsorbate systems
• Scalable material with extensive literature support on adsorption mechanisms

Frequently Asked Questions (FAQ)

• What is the approximate particle diameter for 60–80 mesh?
  60–80 mesh corresponds to approximately 177–250 micrometers. Request the COA/TDS for the exact size distribution measured by laser diffraction or sieving.
• How does 60–80 mesh compare to other mesh sizes?
  Finer mesh (e.g., 80–100) provides higher surface area per gram but slower flow; coarser mesh (e.g., 40–60) offers faster flow but lower capacity. The 60–80 mesh is a practical middle ground for laboratory research.
• Can I use these beads in an HPLC column?
  These beads are not designed for HPLC. They are optimized for gravity-fed or low-pressure packed-bed applications. HPLC requires specialized, uniformly-sized, hard adsorbents.
• What is the specific surface area?
  The specific surface area is typically >500 m² g⁻¹, depending on the synthesis lot. Request the COA/TDS for the exact value and BET isotherm data.
• How many times can I regenerate and reuse these beads?
  Regeneration is possible for many adsorbates via thermal treatment or solvent washing, but the beads may gradually fines (dust) over repeated cycles. Contact us for guidance on regeneration protocols and expected lifespan for your specific application.
• What is the basis for storing at 2–8°C?
  Cool storage helps preserve the adsorbent's pore structure and functionality, especially if the beads have been exposed to moisture or organic vapors. Room temperature storage is acceptable for most applications; consult the TDS for your lot.

References

• Wang H, Yuan X, Wu Y, Zeng G, Chen X, Leng L, Wu Z, Jiang L, Li H. Polymer-derived heteroatom-doped porous carbon materials. Chem Rev. 2020;120(17):9363-9419.
• Correa CR, Kruse A. Biobased functional carbon materials: production, characterization, and applications. Materials (Basel). 2018;11(9):1568.
• Peng Y, Zhang X, Huang S, Schott M, Long J. Overview of functionalized porous materials for rare-earth element separation. Molecules. 2024;29(12):2824.