NDLI: Titanium dioxide modified with various amines used as sorbents of carbon dioxide

Content Provider	Royal Society of Chemistry (RSC)
Author	Kapica-Kozar, Joanna Kusiak-Nejman, Ewelina Morawski, Antoni W. Narkiewicz, Urszula Gęsikiewicz-Puchalska, Andżelika Wrobel, Rafal J. Piróg, Ewa Michalkiewicz, Beata
Copyright Year	2017
Abstract	In this study, titanium dioxide was modified with various amines through hydrothermal treatment for adsorption of CO2. The carbon dioxide adsorption performance of the prepared samples was measured using an STA 449 C thermobalance (Netzsch Company, Germany). The morphological structures, functional groups and elemental compositions of the unmodified and amine-modified titanium dioxide sorbents were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR/DR) and scanning electron microscopy (SEM), respectively. The results showed that modification of TiO2 with amines through hydrothermal treatment is a simple method to prepare CO2 sorbents with high adsorption capacities. Moreover, the results revealed that TEPA-modified titanium dioxide shoved the highest adsorption capacity, enabling an increase in CO2 uptake from 0.45 mmol CO2 g−1 in the case of raw TiO2 to 1.63 mmol CO2 g−1. This result could be indirectly related to the fact that TEPA has the highest amino group content among the three amines used in our research. Additionally, durability tests performed by cyclic adsorption–desorption revealed that TEPA modified titanium dioxide also possesses excellent stability, despite a slight decrease in adsorption capacity over time.
Starting Page	1549
Ending Page	1557
Page Count	9
File Format	HTM / HTML PDF
ISSN	11440546
Volume Number	41
Issue Number	4
Journal	New Journal of Chemistry
DOI	10.1039/c6nj02808j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Netzsch Company X-ray crystallography Fourier Hydrothermal circulation Adsorption TEPA Carbon dioxide Fourier-transform infrared spectroscopy Titanium dioxide Scanning electron microscope Germany
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Catalysis

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