Quality of horizontally aligned single-walled carbon nanotubes: Is methane as carbon source better than ethanol?

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.

Download Full-text

Chiral-selective growth of single-walled carbon nanotubes on Fe-based catalysts using CO as carbon source

Carbon ◽

10.1016/j.carbon.2016.07.048 ◽

2016 ◽

Vol 108 ◽

pp. 521-528 ◽

Cited By ~ 34

Author(s):

Maoshuai He ◽

Pavel V. Fedotov ◽

Alexander Chernov ◽

Elena D. Obraztsova ◽

Hua Jiang ◽

...

Keyword(s):

Carbon Nanotubes ◽

Carbon Source ◽

Single Walled Carbon Nanotubes ◽

Selective Growth ◽

Single Walled Carbon ◽

Walled Carbon Nanotubes

Download Full-text

Effects of time on the quality of vertically oriented single-walled carbon nanotubes by gravity-assisted chemical vapour deposition

Nanotechnology ◽

10.1088/0957-4484/18/14/145613 ◽

2007 ◽

Vol 18 (14) ◽

pp. 145613 ◽

Cited By ~ 1

Author(s):

C M Yeh ◽

M Y Chen ◽

J-Y Gan ◽

J Hwang ◽

C D Lin ◽

...

Keyword(s):

Carbon Nanotubes ◽

Chemical Vapour Deposition ◽

Vapour Deposition ◽

Chemical Vapour ◽

Single Walled Carbon Nanotubes ◽

Single Walled Carbon ◽

Walled Carbon Nanotubes

Download Full-text

A high sensitive probe for monitoring synthesis quality of single-walled carbon nanotubes by surface-enhanced Raman scattering

Journal of Molecular Structure ◽

10.1016/j.molstruc.2004.06.012 ◽

2004 ◽

Vol 705 (1-3) ◽

pp. 71-74 ◽

Cited By ~ 2

Author(s):

Y. Ouyang ◽

Y. Fang

Keyword(s):

Carbon Nanotubes ◽

Raman Scattering ◽

Single Walled Carbon Nanotubes ◽

Surface Enhanced Raman Scattering ◽

Single Walled Carbon ◽

Surface Enhanced ◽

Surface Enhanced Raman ◽

Enhanced Raman Scattering ◽

Walled Carbon Nanotubes

Download Full-text

Chemical Assembly of Copper Oxide and Single Walled Carbon Nanotubes for Enhanced Photocatalytic Dye Degradation under Solar Light Irradiation

Materials Proceedings ◽

10.3390/iocn2020-07790 ◽

2020 ◽

Vol 4 (1) ◽

pp. 18

Author(s):

Kamal Prasad Sapkota ◽

Md. Akherul Islam ◽

Md. Abu Hanif ◽

Jeasmin Akter ◽

Jae Ryang Hahn

Keyword(s):

Carbon Nanotubes ◽

Copper Oxide ◽

Photocatalytic Performance ◽

Dye Degradation ◽

Single Walled Carbon Nanotubes ◽

Photocatalytic Efficiency ◽

Single Walled Carbon ◽

Photocatalytic Dye Degradation ◽

Walled Carbon Nanotubes ◽

Better Than

We elaborate the synthesis and remarkable photocatalytic efficiency of a series of heterojunction nanocomposites with a cauliflower-like architecture composed of copper oxide (CuO) and single-walled carbon nanotubes (SWCNTs). The photocatalysts with such a peculiar design were constructed via facile recrystallization followed by calcination and were symbolized as CuO-SWCNT-1, CuO-SWCNT-2, and CuO-SWCNT-3, representing the components and calcination time in hours. The photocatalytic efficiency of the synthesized nanocomposite samples were investigated by evaluating the decomposition of methylene blue (MB) solution under natural sunlight exposure. All of the as-synthesized photocatalysts were substantially effectual for the photo-deterioration of MB solution. Moreover, CuO-SWCNT-3 revealed the top photocatalytic capability with 96% decomposition of MB solution in 2 h while being exposed to visible light. Pristine CuO nanocrystals and the SWCNTs were employed as controls, whereas the photocatalytic performance of the hetero-composites was significantly better than that of pure CuO as well as SWCNTs. The recyclability of the photocatalysts was also explored, and the results asserted that the samples could be reused for five cycles without being altered notably in photocatalytic performance or morphology.

Download Full-text