Evaluation of Histidine Functionalized Multiwalled Carbon Nanotubes for Improvement in the Sensitivity of Cadmium Ions Determination in Flow Analysis

Lima, Giovana de Fátima; Oliveira, Fernanda Midori de; Ohara, Maikow O.; Segatelli, Mariana Gava; Tarley,

doi:10.5772/17811

Cited by 2 publications

(1 citation statement)

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“…This can be a signal from the residual water in the sample or this can be attributed to the oscillation of carboxyl groups adsorbed on the external walls of MWCNTs after HNO 3 treatment. 39,40 A small peak located at approximately 1081 cm À1 can be ascribed as signal from C-O stretching groups. The existence of a peak at approximately 1384 cm À1 is related to the presence of some nitrate impurities.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of multiwalled carbon nanotubes-rhenium nanocomposites with varied rhenium mass fractions

Dobrzańska-Danikiewicz

Wolany

Łukowiec

et al. 2017

Nanomaterials and Nanotechnology

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The purpose of the article is to discuss the process of oxidation of carbon nanotubes subsequently subjected to the process of decoration with rhenium nanoparticles. The influence of functionalization in an oxidizing medium is presented and the results of investigations using Raman spectroscopy and infrared spectroscopy are discussed. Multiwalled carbon nanotubes rhenium-type nanocomposites with the weight percentage of 10%, 20% and 30% of rhenium are also presented in the article. The structural components of such nanocomposites are carbon nanotubes decorated with rhenium nanoparticles. Microscopic examinations under transmission electron microscope and scanning transmission electron microscope using the bright and dark field confirm that nanocomposites containing about 20% of rhenium have the most homogenous structure.

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Section: Resultsmentioning

confidence: 99%