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Title: Development of TRPN dendrimer-modified disordered mesoporous silica for CO{sub 2} capture

Abstract

Highlights: • A novel series of TRPN dendrimers are synthesized. • Structurally disordered mesoporous silica was used to develop the CO{sub 2} adsorbent. • The CO{sub 2} adsorption capacity is relatively high. • The sorbent exhibits a high stability after 12 cycling runs. • The sorbent achieves complete desorption at low temperature (60 °C). - Abstract: A novel series of tri(3-aminopropyl) amine (TRPN) dendrimers were synthesized and impregnated on structurally disordered mesoporous silica (DMS) to generate CO{sub 2} adsorbents (TS). The physicochemical and adsorption properties of the adsorbents before and after dendrimer modification were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and N{sub 2} adsorption–desorption (N{sub 2}-BET) techniques. CO{sub 2} adsorption–desorption tests indicated that the sorbent demonstrates high CO{sub 2} adsorption capacity (138.1 mg g{sup −1} for G1 sample TS-G1-3CN-50 and 91.7 mg g{sup −1} for G2 sample TS-G2-6CN-50), and can completely desorb CO{sub 2} under vacuum at 60 °C. Its CO{sub 2} adsorption capacity at 25 °C increases with the amine loading, achieving the highest adsorption capacity (140.6 mg g{sup −1} for TS-G1-3CN) at 60%. The developed TS materials exhibited excellent cycling stability. After 12 consecutive adsorption–desorption runs, TS-G1-3CN-50more » shows an adsorption capacity of 136.0 mg g{sup −1}, retaining 98.5% of its original value.« less

Authors:
; ; ;
Publication Date:
OSTI Identifier:
22420523
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 56; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ADSORBENTS; ADSORPTION; AMINES; CARBON DIOXIDE; DENDRIMERS; DESORPTION; FOURIER TRANSFORMATION; INFRARED SPECTRA; NANOSTRUCTURES; NUCLEAR MAGNETIC RESONANCE; PHASE STABILITY; SILICA; SYNTHESIS; THERMAL GRAVIMETRIC ANALYSIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Zhang, Xiaoyun, Zhang, Sisi, Qin, Hongyan, and Wu, Wei. Development of TRPN dendrimer-modified disordered mesoporous silica for CO{sub 2} capture. United States: N. p., 2014. Web. doi:10.1016/J.MATERRESBULL.2014.04.041.
Zhang, Xiaoyun, Zhang, Sisi, Qin, Hongyan, & Wu, Wei. Development of TRPN dendrimer-modified disordered mesoporous silica for CO{sub 2} capture. United States. https://doi.org/10.1016/J.MATERRESBULL.2014.04.041
Zhang, Xiaoyun, Zhang, Sisi, Qin, Hongyan, and Wu, Wei. 2014. "Development of TRPN dendrimer-modified disordered mesoporous silica for CO{sub 2} capture". United States. https://doi.org/10.1016/J.MATERRESBULL.2014.04.041.
@article{osti_22420523,
title = {Development of TRPN dendrimer-modified disordered mesoporous silica for CO{sub 2} capture},
author = {Zhang, Xiaoyun and Zhang, Sisi and Qin, Hongyan and Wu, Wei},
abstractNote = {Highlights: • A novel series of TRPN dendrimers are synthesized. • Structurally disordered mesoporous silica was used to develop the CO{sub 2} adsorbent. • The CO{sub 2} adsorption capacity is relatively high. • The sorbent exhibits a high stability after 12 cycling runs. • The sorbent achieves complete desorption at low temperature (60 °C). - Abstract: A novel series of tri(3-aminopropyl) amine (TRPN) dendrimers were synthesized and impregnated on structurally disordered mesoporous silica (DMS) to generate CO{sub 2} adsorbents (TS). The physicochemical and adsorption properties of the adsorbents before and after dendrimer modification were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and N{sub 2} adsorption–desorption (N{sub 2}-BET) techniques. CO{sub 2} adsorption–desorption tests indicated that the sorbent demonstrates high CO{sub 2} adsorption capacity (138.1 mg g{sup −1} for G1 sample TS-G1-3CN-50 and 91.7 mg g{sup −1} for G2 sample TS-G2-6CN-50), and can completely desorb CO{sub 2} under vacuum at 60 °C. Its CO{sub 2} adsorption capacity at 25 °C increases with the amine loading, achieving the highest adsorption capacity (140.6 mg g{sup −1} for TS-G1-3CN) at 60%. The developed TS materials exhibited excellent cycling stability. After 12 consecutive adsorption–desorption runs, TS-G1-3CN-50 shows an adsorption capacity of 136.0 mg g{sup −1}, retaining 98.5% of its original value.},
doi = {10.1016/J.MATERRESBULL.2014.04.041},
url = {https://www.osti.gov/biblio/22420523}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 56,
place = {United States},
year = {Fri Aug 15 00:00:00 EDT 2014},
month = {Fri Aug 15 00:00:00 EDT 2014}
}