How can you identify nanotube from FTIR?

Quick answer

nanotube is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.

Peak interpretation

Possible materials / groups

Spectrum logic

The logic here is evidence aggregation: repeated literature mentions of nanotube, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.

Real-world usage

This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.

Common mistakes

• Calling a material match too early because one famous peak is present.
• Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
• Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.

Verification advice

Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.

Literature behind this page

• confidence 4.9

  nanotube

  Covalent diphenylalanine peptide nanotube conjugated to folic acid/magnetic nanoparticles for anti-cancer drug delivery DOI: 10.1016/j.jddst.2017.06.005
• confidence 4.9

  nanotube

  Displacement of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">C</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>by Xe in single-walled carbon nanotube bundles DOI: 10.1103/PhysRevB.70.165416
• confidence 4.9

  nanotube

  Covalently grafted carbon nanotube on bacterial cellulose composite for flexible touch screen application DOI: 10.1016/j.matlet.2013.05.126
• confidence 4.9

  nanotube

  Polarization losses under dynamic load cycle using multiwall carbon nanotube supported Pt catalyst in PEM fuel cell DOI: 10.1063/1.4941635
• confidence 4.9

  Nanotube

  Removal of Ni ²⁺ from Aqueous Solutions by Adsorption Onto Magnetic Multiwalled Carbon Nanotube Nanocomposite DOI: 10.2478/pjct-2014-0036
• confidence 4.9

  nanotube

  Comparative study of response of four crop species exposed to carbon nanotube contamination in soil DOI: 10.1016/j.chemosphere.2021.129854
• confidence 4.9

  Nanotube

  Insights into the Molecular Architecture of a Peptide Nanotube Using FTIR and Solid‐State NMR Spectroscopic Measurements on an Aligned Sample DOI: 10.1002/anie.201301960
• confidence 4.9

  nanotube

  Tang 等 - 2023 - Ni -chitosancarbon nanotube An efficient biopoly DOI: 10.1016/j.heliyon.2023.e13523
• confidence 4.9

  nanotube

  [O] [H] functionalization on carbon nanotube using (O2–H2) gas mixture DC glow discharge DOI: 10.1007/s13204-011-0040-1
• confidence 4.1

  Nanotube

  Ryu 等 - 2010 - Carbon Nanotube Mat as Mediator-Less Glucose Senso DOI: 10.1166/jnn.2010.1892