Cited by 236Carbon Dioxide Capture TechnologiesMesoporous Materials and CatalysisCarbon dioxide utilization in catalysis

Utilization of rice husk ash as silica source for the synthesis of mesoporous silicas and their application to CO2 adsorption through TREN/TEPA grafting

Bhagiyalakshmi, Margandan, Yun, Lee Ji, Anuradha, Ramani, Jang, Hyun Tae·2010·Journal of Hazardous Materials

Abstract

Mesoporous MCM-41, MCM-48 and SBA-15 were synthesized using Rice husk ash (RHA) as the silica source and their defective Si-OH sites were functionalized by 3-chloropropyltrimethoxysilane (CPTMS) which was subsequently grafted with amine compounds, Tris(2-aminoethyl)amine (TREN) and Tetraethylenepentamine (TEPA). X-ray powder diffraction (XRD) and BET results of the parent mesoporous silica suggested their closeness of structural properties to those obtained from conventional silica sources. CO(2) adsorption of branched amine TREN and straight chain amine TEPA at 25, 50 and 75 degrees C was obtained by Thermogravimetric Analyser (TGA) at atmospheric pressure. TREN grafted mesoporous silica showed 7% of CO(2) adsorption while TEPA grafted mesoporous silicas showed less CO(2) adsorption, which is due to the presence of isolated amine groups in TREN. TREN grafted mesoporous silicas were also observed to be selective towards CO(2), thermally stable and recyclable. The order of CO(2) adsorption with respect to amount of amine grafting was observed to be MCM-48/TREN>MCM-41/TREN>SBA-15/TREN.

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Crossref · 10.1016/j.jhazmat.2009.10.097

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Authors
Bhagiyalakshmi, M., Yun, L. J., Anuradha, R., & Jang, H. T.
Affiliations
Hanseo University (KR)
Corresponding author
Jang, Hyun Tae
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2010-03
Volume
175
Issue
1-3
Pages
928-938
ISSN
0304-3894 (ISSN-L)
OpenAlex
W2076301705
Cited by
236
References
46
Citations by year
2026: 8 · 2025: 9 · 2024: 9 · 2023: 12 · 2022: 13 · 2021: 10 · 2020: 22 · 2019: 22 · 2018: 11 · 2017: 24 · 2016: 9 · 2015: 17 · 2014: 16 · 2013: 17 · 2012: 12
FWCI
24.69
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
  • Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
  • Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Carbon dioxide utilization in catalysis
Keywords
rice husk ash, mesoporous silica, CO2 adsorption, TREN, TEPA, amine grafting, 3-chloropropyltrimethoxysilane, MCM-41, MCM-48, SBA-15, silica source, CO2 capture, adsorbent reusability
MeSH terms
Adsorption, Amines, Carbon Dioxide, Ethylenediamines, Models, Chemical, Nitrogen, Magnetic Resonance Spectroscopy, Oryza, Silanes, Silicon Dioxide, Temperature, Thermogravimetry, X-Ray Diffraction, Porosity

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