Related Experiment Video
Updated: Jun 3, 2026
08:00
A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
Published on: September 29, 2023
Removal of formaldehyde over amine functionalized SBA-15
Jin-Heong Yim1, Doo Il Kim, Jung A Bae
1Division of Advanced Materials Engineering, Kongju National University, Cheonan 330-717, Korea.
Journal of Nanoscience and Nanotechnology
|April 2, 2011
Summary
Amine-functionalized SBA-15 materials were synthesized for formaldehyde removal. SBA-15/TMSPDETA demonstrated the highest activity due to its enhanced reactivity with formaldehyde.
Area of Science:
- Materials Science
- Nanotechnology
- Environmental Chemistry
Background:
- Ordered mesoporous silica, such as SBA-15, are widely investigated for adsorption applications.
- Functionalization of silica surfaces is crucial for enhancing adsorption properties.
- Formaldehyde is a common indoor air pollutant requiring efficient removal methods.
Purpose of the Study:
- To synthesize amine-functionalized SBA-15 materials using a post-synthesis method.
- To investigate the effect of amine functionalization on the structural properties of SBA-15.
- To evaluate the formaldehyde removal efficiency of the functionalized materials.
Main Methods:
- Post-synthesis functionalization of SBA-15 with amine groups.
- Characterization of surface area, pore size, and pore volume using BET analysis.
- Elemental analysis to determine carbon and nitrogen content.
- Evaluation of formaldehyde removal activity based on reactivity.
Main Results:
- Amine functionalization led to a decrease in surface area, pore size, and pore volume.
- Increased carbon and nitrogen content correlated with the number of amine groups.
- SBA-15/TMSPDETA exhibited the highest formaldehyde removal activity.
- High reactivity of SBA-15/TMSPDETA with formaldehyde was identified as the key factor.
Conclusions:
- Post-synthesis amine functionalization is an effective strategy to modify SBA-15 properties.
- The degree of functionalization impacts the material's structural characteristics.
- SBA-15/TMSPDETA shows significant potential for formaldehyde adsorption and removal from air.
More Related Videos
Related Concept Videos
01:16Amines to Alkenes: Hofmann Elimination
Alkenes can be obtained from amines via an E2 elimination. The amine is first converted into a good leaving group, such as a quaternary ammonium salt. This is accomplished by treating the amine with an excess of alkyl halide, which results in a halide salt. Next, the halide salt is transformed into a hydroxide salt that functions as a base to enable elimination.
Under thermal conditions, the hydroxide can abstract a proton from the β carbon; this generates an alkene with the simultaneous...
Under thermal conditions, the hydroxide can abstract a proton from the β carbon; this generates an alkene with the simultaneous...
01:28Preparation of 1° Amines: Gabriel Synthesis
Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
01:22Electrophilic Aromatic Substitution: Sulfonation of Benzene
Sulfonation of benzene is a reaction wherein benzene is treated with fuming sulfuric acid at room temperature to produce benzenesulfonic acid. Fuming sulfuric acid is a mixture of sulfur trioxide and concentrated sulfuric acid.