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Nanomaterials (Basel)

Title:		"Monolithic Solid Based on Single-Walled Carbon Nanohorns: Preparation, Characterization, and Practical Evaluation as a Sorbent"
Author(s):		Fresco-Cala B; Lopez-Lorente AI; Cardenas S;
Address:		"Departamento de Quimica Analitica, Instituto Universitario de Investigacion en Quimica Fina y Nanoquimica IUNAN, Universidad de Cordoba, Campus de Rabanales, Edificio Marie Curie, E-14071 Cordoba, Spain. q72frcab@uco.es. Departamento de Quimica Analitica, Instituto Universitario de Investigacion en Quimica Fina y Nanoquimica IUNAN, Universidad de Cordoba, Campus de Rabanales, Edificio Marie Curie, E-14071 Cordoba, Spain. q32loloa@uco.es. Departamento de Quimica Analitica, Instituto Universitario de Investigacion en Quimica Fina y Nanoquimica IUNAN, Universidad de Cordoba, Campus de Rabanales, Edificio Marie Curie, E-14071 Cordoba, Spain. scardenas@uco.es"
Journal Title:		Nanomaterials (Basel)
Year:		2018
Volume:		20180525
Issue:		6
Page Number:		-
DOI:		10.3390/nano8060370
ISSN/ISBN:		2079-4991 (Print) 2079-4991 (Electronic) 2079-4991 (Linking)
Abstract:		"A monolithic solid based solely on single walled carbon nanohorns (SWNHs) was prepared without the need of radical initiators or gelators. The procedure involves the preparation of a wet jelly-like system of pristine SWNHs followed by slow drying (48 h) at 25 degrees C. As a result, a robust and stable porous network was formed due to the interaction between SWNHs not only via pi-pi and van der Waals interactions, but also via the formation of carbon bonds similar to those observed within dahlia aggregates. Pristine SWNHs and the SWNH monolith were characterized by several techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), confocal laser scanning microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and nitrogen intrusion porosimetry. Taking into account the efficiency of carbon nanoparticles in sorption processes, the potential applicability of the SWNH-monolith in this research field was explored using toluene; m-, p-, and o-xylene; ethylbenzene; and styrene, as target analytes. Detection limits were 0.01 microg.L(-1) in all cases and the inter-day precision was in the interval 7.4(-)15.7%. The sorbent performance of the nanostructured monolithic solid was evaluated by extracting the selected compounds from different water samples with recovery values between 81.5% and 116.4%"
Keywords:		carbon monolith carbon nanoparticles gas chromatography headspace microextraction single-walled carbon nanohorns volatile organic compounds;
Notes:		"PubMed-not-MEDLINEFresco-Cala, Beatriz Lopez-Lorente, Angela I Cardenas, Soledad eng Switzerland 2018/05/26 Nanomaterials (Basel). 2018 May 25; 8(6):370. doi: 10.3390/nano8060370"