Adsorption of volatile organic compounds onto carbon nanotubes, carbon nanofibers, and high-surface-area graphites

2007 ◽  
Vol 305 (1) ◽  
pp. 7-16 ◽  
Author(s):  
Eva Díaz ◽  
Salvador Ordóñez ◽  
Aurelio Vega
Keyword(s):  
Carbon Nanotubes ◽  
Volatile Organic Compounds ◽  
Surface Area ◽  
Carbon Nanofibers ◽  
Organic Compounds ◽  
High Surface ◽  
High Surface Area ◽  
Volatile Organic

Sol-Gel Preparation, Characterization and Photocatalytic Activity of Nanostructured TiO2 Nanoparticles

2012 ◽  
Vol 1372 ◽  
Author(s):  
R. Carrera ◽  
S. Castillo
Keyword(s):  
Volatile Organic Compounds ◽  
Physicochemical Properties ◽  
Organic Compounds ◽  
Photocatalytic Oxidation ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Photocatalytic Decomposition ◽  
Volatile Organic ◽  
Gel Preparation

ABSTRACTTo establish a promising method for the purification of air containing volatile organic compounds, TiO2 nanoparticles with interesting physicochemical properties were prepared by the sol-gel method to perform the photocatalytic decomposition of acetaldehyde. The obtained samples were characterized by the x-ray diffraction -Rietveld refinement, transmission electron microscopy (TEM) and the Brunauer, Emmet and Teller (BET) model. According to the results, the sample that presented the highest activity (96.4%) in the photocatalytic oxidation of acetaldehyde was the one annealed at 200 °C. This material showed the presence of a mixture of the anatase (higher proportion) and brookite phases, nanometric crystal size (7.03 nm) and high surface area (189 m2g-1). The physicochemical properties present in the TiO2-P-200°C nanoparticles suggest that they may establish a photoassisted reaction process for air purification, in which volatile organic compounds are photocatalitically decomposed.

scholarly journals Electrochemical Sensor Based on Prussian Blue Electrochemically Deposited at ZrO2 Doped Carbon Nanotubes Glassy Carbon Modified Electrode

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1328 ◽  
Author(s):  
Marlon Danny Jerez-Masaquiza ◽  
Lenys Fernández ◽  
Gema González ◽  
Marjorie Montero-Jiménez ◽  
Patricio J. Espinoza-Montero
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Properties ◽  
Electrochemical Sensor ◽  
Prussian Blue ◽  
Surface Area ◽  
Glassy Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Electrochemically Deposited ◽  
Area X

In this work, a new hydrogen peroxide (H2O2) electrochemical sensor was fabricated. Prussian blue (PB) was electrodeposited on a glassy carbon (GC) electrode modified with zirconia doped functionalized carbon nanotubes (ZrO2-fCNTs), (PB/ZrO2-fCNTs/GC). The morphology and structure of the nanostructured system were characterized by scanning and transmission electron microscopy (TEM), atomic force microscopy (AFM), specific surface area, X-ray diffraction (XRD), thermogravimetric analysis (TGA), Raman and Fourier transform infrared (FTIR) spectroscopy. The electrochemical properties were studied by cyclic voltammetry (CV) and chronoamperometry (CA). Zirconia nanocrystallites (6.6 ± 1.8 nm) with cubic crystal structure were directly synthesized on the fCNTs walls, obtaining a well dispersed distribution with a high surface area. The experimental results indicate that the ZrO2-fCNTs nanostructured system exhibits good electrochemical properties and could be tunable by enhancing the modification conditions and method of synthesis. The fabricated sensor could be used to efficiently detect H2O2, presenting a good linear relationship between the H2O2 concentration and the peak current, with quantification limit (LQ) of the 10.91 μmol·L−1 and detection limit (LD) of 3.5913 μmol·L−1.

scholarly journals A superhydrophobic hyper-cross-linked polymer synthesized at room temperature used as an efficient adsorbent for volatile organic compounds

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97048-97054 ◽  
Author(s):  
Junhui Wang ◽  
Wan-Qiu Wang ◽  
Zhengping Hao ◽  
Gang Wang ◽  
Yang Li ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Surface Area ◽  
Organic Compounds ◽  
Room Temperature ◽  
Large Surface Area ◽  
High Adsorption ◽  
Volatile Organic ◽  
Efficient Adsorbent

The hyper-cross-linked polymers CLBE-xwere prepared at room temperature and exhibit a large surface area, super-hydrophobicity and high adsorption for benzene.

Surface chemical modifications induced on high surface area graphite and carbon nanofibers using different oxidation and functionalization treatments

2011 ◽  
Vol 355 (1) ◽  
pp. 179-189 ◽  
Author(s):  
A.B. Dongil ◽  
B. Bachiller-Baeza ◽  
A. Guerrero-Ruiz ◽  
I. Rodríguez-Ramos ◽  
A. Martínez-Alonso ◽  
...  
Keyword(s):  
Surface Area ◽  
Carbon Nanofibers ◽  
High Surface ◽  
High Surface Area ◽  
Surface Chemical ◽  
Chemical Modifications

scholarly journals Preparation and Characteristics of SiOx Coated Carbon Nanotubes with High Surface Area

Nanomaterials ◽  
2012 ◽  
Vol 2 (2) ◽  
pp. 206-216 ◽  
Author(s):  
Aeran Kim ◽  
Seongyop Lim ◽  
Dong-Hyun Peck ◽  
Sang-Kyung Kim ◽  
Byungrok Lee ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Coated Carbon

“Hairy Foam”: carbon nanofibers grown on solid carbon foam. A fully accessible, high surface area, graphitic catalyst support

2008 ◽  
Vol 18 (21) ◽  
pp. 2426 ◽  
Author(s):  
Patrick W. A. M. Wenmakers ◽  
John van der Schaaf ◽  
Ben F. M. Kuster ◽  
Jaap C. Schouten
Keyword(s):  
Surface Area ◽  
Carbon Nanofibers ◽  
High Surface ◽  
Catalyst Support ◽  
High Surface Area ◽  
Carbon Foam ◽  
Solid Carbon
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