MATERIALS CATALOG

SBA-15

SBA-15

Price From: $195.00

Availability: In stock

Hydrothermal Method

Product Detail

CAS No.: 7631-86-9

Santa Barbara Amorphous-15 (SBA-15) is a highly stable mesoporous silica sieve developed by researchers at the University of California at Santa Barbara. It gets it high hydrothermal and mechanical stability from a framework of uniform hexagonal pores that feature a narrow pore-size distribution and a tunable pore diameter of 5nm to 15nm, but, most significantly, from its relatively thick walls, which range between 3.1nm and 6.4nm.  SBA mesoporous silica 15 has a high internal surface area, which lends itself to various application, including environmental adsorption and separation, advanced optics, and catalysts.

SBA-15 is synthesized in acidic conditions using triblock copolymer Pluronic 123 (EO20PO70EO20) as a pattern and tetraethoxysilane (TEOS) for the source of silica. Once synthesis is complete, the organic template is removed by a variety of methods, including calcination, reflux extraction, H2O2 treatments, microwave digestion, and/or washing with pure solvents, ethanol, acetone, or water.  ACS Materials’ SBA-15 was calcined in air at 823 Kelvin for 6 hours, resulting in a fine, white powder.

1. Preparation Method

Hydrothermal Method

2. Characterizations

Key features of our SBA-15 products are:

Appearance: White Powder
Particle Size (μm) 1~4
Pore Diameter (nm) 6~11
Pore Volume (cm3/g): 1.46
BET surface area (m2/g)  ≥550
Phase p6mm
Comparative Crystallinity (%) ≥90
BJH Desorption Cumulative Volume of Pores (cm3/g)

0.6793

Bulk Density (g/cm3)

0.067

Tap Density (g/cm3) 0.145

This product is calcined and ready to use directly.

Typical SEM Image of ACS Material Mesoporous Silica Molecular Sieve SBA-15 (1)

Typical SEM Image of ACS Material Mesoporous Silica Molecular Sieve SBA-15 (1)

Typical SEM Image of ACS Material Mesoporous Silica Molecular Sieve SBA-15 (2)

Typical SEM Image of ACS Material Mesoporous Silica Molecular Sieve SBA-15 (2)

Typical XRD Analysis of ACS Material Mesoporous Silica Molecular Sieve SBA-15

Typical XRD Analysis of ACS Material Mesoporous Silica Molecular Sieve SBA-15

Typical BET Analysis of ACS Material Mesoporous Silica Molecular Sieve SBA-15

Typical BET Analysis of ACS Material Mesoporous Silica Molecular Sieve SBA-15

 

3. Application Fields

1)    Catalyst carrier

2)    As a templating agent

3)    Nanomaterials

FAQs

1. What the final calcination temperature used during synthesis? 

The material was finally calcined in air, at 823 Kelvin for 6 hrs to decompose the triblock co-polymer and to obtain a white powder, SBA-15. This is the typical method to prepare SBA-15.

 

Research Citations of ACS Material Products