scholarly journals Electron Trap States and Photopotential of Nanocrystalline Titanium Dioxide Electrodes Filled with Single-Walled Carbon Nanotubes

2017 ◽  
Vol 4 (9) ◽  
pp. 2300-2307 ◽  
Author(s):  
Alejandro Ansón-Casaos ◽  
Javier Hernández-Ferrer ◽  
Cristina Rubio-Muñoz ◽  
Ana Santidrian ◽  
M. Teresa Martínez ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Titanium Dioxide ◽  
Single Walled Carbon Nanotubes ◽  
Electron Trap ◽  
Trap States ◽  
Single Walled Carbon ◽  
Nanocrystalline Titanium ◽  
Nanocrystalline Titanium Dioxide ◽  
Walled Carbon Nanotubes

scholarly journals Efficacy of Single-Walled Carbon Nanotubes and Titanium Dioxide Nanoparticles as Remediators of the Aquatic Environment from Pendimethalin Residues

2021 ◽  
Vol 6 (1) ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Titanium Dioxide ◽  
Titanium Dioxide Nanoparticles ◽  
Freundlich Isotherm ◽  
Single Walled Carbon Nanotubes ◽  
Isotherm Models ◽  
Tio2 Nps ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Pesticides are useful in increasing the quantity and quality of agricultural products. However, over-application or misuse would accumulate their residues in the environments, which might pose threats to non-target organisms and humans. Therefore, this study investigated the sorption of herbicide, pendimethalin (PD) onto titanium dioxide nanoparticles (TiO2 NPs) and single-walled carbon nanotubes (SWCNTs) surfaces in aqueous solutions. Several experiments were conducted to study the contact time of the nanoparticles with different concentrations of PD under laboratory conditions. The experiments were done at 25 ºC and pH values 7.0. Sorption results were then fitted using Langmuir and Freundlich isotherm models. Quantities of 0.5 to 2.5 µg/ml of TiO2 NPs and 50.0 µg/ml of SWCNTs exhibited 100.0% and 99.8% removal of PD, respectively. Small amounts of PD (0.5-2.5 µg/ml) were completely removed (100%) by TiO2NPs and SWCNTs particles. Isotherms displayed adsorption capacities of 1.850 and 2.304 µg/g for TiO2NPs and SWCNTs, respectively, which highlight the elevated potential of cleaning the environment from pendimethalin residues.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes
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