Promoting Effect of Inorganic Alkali on Carbon Dioxide Adsorption in Amine-Modified MCM-41
Abstract
:1. Introduction
2. Experimental
2.1. Materials Preparation
2.2. Materials Characterization
2.3. CO2 Adsorption
3. Results and Discussion
3.1. Preparation and Characterization of the Adsorbents
3.2. CO2 Adsorption Performance of Adsorbents
3.3. Promoting Effect of Inorganic Alkali
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
Abbreviations
TEPA | Tetraethylenepentamine |
PEI | Polyethyleneimine |
FT-IR | Fourier transform infrared |
TGA | Thermo-gravimetric analysis |
CTAB | Cetyltrimethylammonium Bromide |
TEOS | Tetraethylorthosilicate |
DEA | Diethanol amine |
DTEA | Diethylenetriamine |
TETA | Triethylenetetramine |
AMP | 2-amino-2-methyl-1-propanol |
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Materials | Surface Areas (m2/g) | Pore Volume (cm3/g) | Average Pore Diameters (nm) |
---|---|---|---|
MCM-41 | 865 | 1.00 | 4.64 |
MCM-41-TEPA | 431 | 0.83 | 2.21 |
MCM-41-KOH-TEPA | 322 | 0.97 | 2.15 |
MCM-41-Ca(OH)2-TEPA | 405 | 0.94 | 2.31 |
MCM-41-CsOH-TEPA | 293 | 0.97 | 2.61 |
MCM-41-PEI | 508 | 0.98 | 2.54 |
MCM-41-KOH-PEI | 391 | 1.08 | 2.33 |
MCM-41-Ca(OH)2-PEI | 411 | 1.12 | 2.50 |
MCM-41-CsOH-PEI | 306 | 0.91 | 2.14 |
Materials | NaOH Solution (/mL) | Alkali Amounts/(mmol/g) |
---|---|---|
MCM-41-TEPA | 11.81 | 0.8812 |
MCM-41-KOH-TEPA | 8.91 | 1.1607 |
MCM-41-Ca(OH)2-TEPA | 4.35 | 1.6001 |
MCM-41-CsOH-TEPA | 8.82 | 1.1693 |
MCM-41-PEI | 12.48 | 0.7819 |
MCM-41-KOH-PEI | 6.73 | 1.3708 |
MCM-41-Ca(OH)2-PEI | 5.86 | 1.4546 |
MCM-41-CsOH-PEI | 6.35 | 1.4074 |
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Teng, Y.; Li, L.; Xu, G.; Zhang, K.; Li, K. Promoting Effect of Inorganic Alkali on Carbon Dioxide Adsorption in Amine-Modified MCM-41. Energies 2016, 9, 667. https://doi.org/10.3390/en9090667
Teng Y, Li L, Xu G, Zhang K, Li K. Promoting Effect of Inorganic Alkali on Carbon Dioxide Adsorption in Amine-Modified MCM-41. Energies. 2016; 9(9):667. https://doi.org/10.3390/en9090667
Chicago/Turabian StyleTeng, Yang, Lijiao Li, Gang Xu, Kai Zhang, and Kaixi Li. 2016. "Promoting Effect of Inorganic Alkali on Carbon Dioxide Adsorption in Amine-Modified MCM-41" Energies 9, no. 9: 667. https://doi.org/10.3390/en9090667