Optical characterization of PANI/functionalized-MWCNTs/PVA nanocomposites induced by gamma irradiation

• Published in: Synthetic metals Vol. 276; p. 116755
• Main Authors: Norfazlinayati, O., Talib, Z.A., Mohd Hamzah, H., Nik Salleh, N.G., Shaari, A.H.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.06.2021; Elsevier BV
• Subjects: Food irradiation; Functional materials; Gamma irradiation; Morphology; Nanocomposite; Nanocomposites; Optical characterization; Optical properties; Radiation dosage; Optical characterization; Gamma irradiation; Nanocomposite
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/j.synthmet.2021.116755

PANI/Functionalized CNT/PVA nanocomposites were prepared by gamma irradiation technique, and their optical characterization were investigated. The results obtained showed that the bandgap derived from the UV–Vis study decreased with the increment of irradiation dose. There was a particular interaction between PANI and functionalized CNT upon irradiation indicating an interaction between these two functional materials. The surface morphology showed the thickness of the functionalized tube was greater after irradiation which indicated wrapping of the PANI onto the CNT wall. •This article reported the optical characterization of in-situ polymerized PANI/Functionalized CNT/PVA by gamma irradiation.•The energy gap decreases with the gamma irradiation exposure indicates that the optical characterization is directly influenced by gamma irradiation.•FE-SEM study shows the successful coated of PANI onto the CNT lattice in the PVA matrix indicates the dispersibility was enhanced by gamma irradiation.•The energy gap varies from 3.33, 3.22, 2.94, 2.78, 2.68, and 2.62 eV for the samples irradiated at 0, 10, 20, 30, 40, and 50 kGy, respectively.