Contribution of Polylactic Acid and Pd Nanoparticles in the Enhanced Photothermal Effect of Carbon Nanotubes

Neelgund, Gururaj M.; Oki, Aderemi

doi:10.1002/slct.202003191

Cited by 5 publications

(3 citation statements)

References 53 publications

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“…Furthermore, the existence of densely populated Pd nanoparticles over the surface of PLA–grafted CNTs is evident in Figure 3 . Nonetheless, Pd nanoparticles have assembled and formed some clusters that led to the seeding of twinned or multiple–twinned nanoparticles, which commonly occur in palladium [ 52 , 57 , 58 , 59 ]. The grafting of PLA to CNTs has provided a suitable environment for depositing the Pd nanoparticles and directed their strong adherence.…”

Section: Resultsmentioning

confidence: 99%

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Facilitated Adsorption of Mercury(II) and Chromium(VI) Ions over Functionalized Carbon Nanotubes

Neelgund

Jimenez

Ray

et al. 2023

Toxics

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By considering the importance of water and its purity, herein, a powerful adsorbent has been developed for the adsorption of two toxic contaminants that commonly exist in water, viz., divalent mercury and hexavalent chromium. The efficient adsorbent, CNTs–PLA–Pd, was prepared by covalent grafting polylactic acid to carbon nanotubes and subsequent deposition of palladium nanoparticles. The CNTs–PLA–Pd could adsorb Hg(II), and Cr(VI) entirely exists in water. The adsorption rate for Hg(II) and Cr(VI) was rapid at initial stage, followed by gradual decrease, and attained the equilibrium. The Hg(II) and Cr(VI) adsorption was perceived within 50 min and 80 min, respectively with CNTs–PLA–Pd,. Further, experimental data for Hg(II) and Cr(VI) adsorption was analyzed, and kinetic parameters were estimated using pseudo–first and second–order models. The adsorption process of Hg(II) and Cr(VI) followed the pseudo–second–order kinetics, and the rate–limiting step in the adsorption was chemisorption. The Weber−Morris intraparticle pore diffusion model revealed that the Hg(II) and Cr(VI) adsorption over CNTs–PLA–Pd occurs through multiple phases. The experimental equilibrium parameters for the Hg(II) and Cr(VI) adsorption were estimated by Langmuir, Freundlich, and Temkin isotherms models. All three models were well suited and demonstrated that Hg(II) and Cr(VI) adsorption over CNTs–PLA–Pd transpires through monolayer molecular covering and chemisorption.

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Section: Resultsmentioning

confidence: 99%

“…The resilient anchoring of Pd nanoparticles to the sur grafted CNTs prevented them from detachment. particles, which commonly occur in palladium [52,[57][58][59]. The grafting of P has provided a suitable environment for depositing the Pd nanoparticles a their strong adherence.…”

Section: Resultsmentioning

confidence: 99%

Facilitated Adsorption of Mercury(II) and Chromium(VI) Ions over Functionalized Carbon Nanotubes

Neelgund

Jimenez

Ray

et al. 2023

Toxics

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“…CNTs possess a distinctive one-dimensional structure originated by rolling a thick sheet of graphene nanosheets into a smooth cylinder with a high aspect ratio [ 34 , 35 , 36 , 37 , 38 , 39 ]. CNTs have lightweight with high mechanical strength, unique electronic properties, large surface area, high chemical stability, and excellent thermal stability [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

The Cytotoxicity of Carbon Nanotubes and Hydroxyapatite, and Graphene and Hydroxyapatite Nanocomposites against Breast Cancer Cells

et al. 2023

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Cancer is a current dreadful disease and the leading cause of death. Next to cardiovascular diseases, cancer is the most severe threat to human life and health. Breast cancer is the most common invasive cancer diagnosed in women. Each year about 2.3 million women are diagnosed with breast cancer. In consideration of the severity of breast cancer, herein we designed the biocompatible nanomaterials, CNTs-HAP and GR-HAP, through grafting of hydroxyapatite (HAP) to carbon nanotubes (CNTs) and graphene (GR) nanosheets. CNTs-HAP and GR-HAP have been tested for their cytotoxicity, growth and motility inhibitory effects, and their effects on the mesenchymal markers. All these demonstrated significant dose-dependent and time-dependent in vitro cytotoxicity against SUM-159 and MCF-7 breast cancer cell lines. The cell viability assay showed that the CNTs-HAP was more effective over SUM-159 cells than MCF-7 cells. It found that the increase in the concentration of GR-HAP has inhibited the clonogenic ability of breast cancer cells. The GR-HAP exhibited a substantial inhibitory effect on the cell motility of SUM-159 cell lines. It was investigated that the expression of vimentin (mesenchymal marker) was majorly reduced in SUM-159 cells by GR-HAP.

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Organic and inorganic nanofillers for polymer nanocomposites

Pathak,

Punetha,

Bhatt

et al. 2024

Advances in Functionalized Polymer Nanocomposites

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Contribution of Polylactic Acid and Pd Nanoparticles in the Enhanced Photothermal Effect of Carbon Nanotubes

Cited by 5 publications

References 53 publications

Facilitated Adsorption of Mercury(II) and Chromium(VI) Ions over Functionalized Carbon Nanotubes

Facilitated Adsorption of Mercury(II) and Chromium(VI) Ions over Functionalized Carbon Nanotubes

The Cytotoxicity of Carbon Nanotubes and Hydroxyapatite, and Graphene and Hydroxyapatite Nanocomposites against Breast Cancer Cells

Organic and inorganic nanofillers for polymer nanocomposites

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