A novel Ca3(PO4)2–CaCO3support mixture for the CVD synthesis of roughened MWCNT-carbon fibres

Mhlanga, Sabelo D.; Witcomb, M. J.; Erasmus, Rudolph M.; Coville, Neil J.

doi:10.1080/17458081003793313

Cited by 3 publications

(1 citation statement)

References 53 publications

(64 reference statements)

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“…P. oocarpa is a species rich in turpentine, and its oleoresin is a mixture of highly volatile monoterpenes, including α - and β -pinenes, which have been identified as highly effective MWCNT precursors capable of providing a high yield ( Lara-Romero et al, 2011 ). According to previous studies, coil-shaped crystalline nanoparticles cannot be synthesized by processes other than CVD ( Fejes & Hernádi, 2010 ; Mhlanga et al, 2011 ). Therefore, the above hypothesis is also supported by the detection of coil-shaped crystalline carbon nanoparticles in the HR-TEM images of the burned P. oocarpa and P. pseudostrobus wood.…”

Section: Discussionmentioning

confidence: 99%

Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants

Lara‐Romero

Campos-Garcı́a

Dasgupta‐Schubert

et al. 2017

PeerJ

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Carbon nanotubes (CNTs) have a broad range of applications and are generally considered human-engineered nanomaterials. However, carbon nanostructures have been found in ice cores and oil wells, suggesting that nature may provide appropriate conditions for CNT synthesis. During forest wildfires, materials such as turpentine and conifer tissues containing iron under high temperatures may create chemical conditions favorable for CNT generation, similar to those in synthetic methods. Here, we show evidence of naturally occurring multiwalled carbon nanotubes (MWCNTs) produced from Pinus oocarpa and Pinus pseudostrobus, following a forest wildfire. The MWCNTs showed an average of 10 walls, with internal diameters of ∼2.5 nm and outer diameters of ∼14.5 nm. To verify whether MWCNT generation during forest wildfires has a biological effect on some characteristic plant species of these ecosystems, germination and development of seedlings were conducted. Results show that the utilization of comparable synthetic MWCNTs increased seed germination rates and the development of Lupinus elegans and Eysenhardtia polystachya, two plants species found in the burned forest ecosystem. The finding provides evidence that supports the generation and possible ecological functions of MWCNTs in nature.

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Section: Discussionmentioning

confidence: 99%

Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants

Lara‐Romero

Campos-Garcı́a

Dasgupta‐Schubert

et al. 2017

PeerJ

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Potential Applications of Greener Synthesized Silver and Gold Nanoparticles in Medicine

Noah

2020

Nanoparticles and Their Biomedical Applications

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Green synthesis: Characterization and application of silver and gold nanoparticles

Noah

2019

Green Synthesis, Characterization and Applications of Nanoparticles

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A novel Ca₃(PO₄)₂–CaCO₃support mixture for the CVD synthesis of roughened MWCNT-carbon fibres

Abstract: (2011) A novel Ca 3 (PO 4) 2-CaCO 3 support mixture for the CVD synthesis of roughened MWCNT-carbon fibres,

Cited by 3 publications

References 53 publications

Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants

Biological effects of carbon nanotubes generated in forest wildfire ecosystems rich in resinous trees on native plants

Potential Applications of Greener Synthesized Silver and Gold Nanoparticles in Medicine

Green synthesis: Characterization and application of silver and gold nanoparticles

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