Nickel Oxide-Carbon Soot-Cellulose Acetate Nanocomposite for the Detection of Mesitylene Vapour: Investigating the Sensing Mechanism Using an LCR Meter Coupled to an FTIR Spectrometer.
Lesego MalepePatrick Gathura NdunguDerek Tantoh NdintehMessai Adenew MamoPublished in: Nanomaterials (Basel, Switzerland) (2022)
Nanocomposite sensors were prepared using carbon soot (CNPs), nickel oxide nanoparticles (NiO-NPs), and cellulose acetate (CA), which was used to detect and study the sensing mechanism of mesitylene vapour at room temperature. Synthesised materials were characterised using high-resolution transmission electron microscopy (HR-TEM), powder x-ray diffraction (PXRD), Raman spectroscopy, and nitrogen sorption at 77 K. Various sensors were prepared using individual nanomaterials (NiO-NPs, CNPs, and CA), binary combinations of the nanomaterials (CNPs-NiO, CNPs-CA, and NiO-CA), and ternary composites (NiO-CNPs-CA). Among all of the prepared and tested sensors, the ternary nanocomposites (NiO-CNPs-CA) were found to be the most sensitive for the detection of mesitylene, with acceptable response recovery times. Fourier-transform infrared (FTIR) spectroscopy coupled with an LCR meter revealed that the mesitylene decomposes into carbon dioxide.
Keyphrases
- reduced graphene oxide
- oxide nanoparticles
- high resolution
- room temperature
- electron microscopy
- ionic liquid
- carbon dioxide
- gold nanoparticles
- raman spectroscopy
- protein kinase
- visible light
- carbon nanotubes
- low cost
- magnetic resonance imaging
- computed tomography
- quantum dots
- single cell
- mass spectrometry
- real time pcr
- amino acid
- tandem mass spectrometry
- sensitive detection
- liquid chromatography