Research Information System
3rd International Eurasian Conference on Science, Engineering and Technology (EurasianSciEnTech 2021), Ankara, Turkey, 15 - 17 December 2021, pp.116, (Summary Text)
In this study, graphene oxide (GO)-Ag-PANI ternary nanocomposite produced by a facile and one-pot
approach for photothermal applications. AgNO3 was used as an oxidizing agent to initiate polymerization of
aniline monomer on GO nanosheets in dodecyl benzene sulfonic acid (DBSA) aqueous solution which serve
as a stabilizing agent. The prepared ternary nanocomposite was characterized by UV-Vis spectrophotometer,
Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscope
(SEM). The photothermal properties of GO-Ag-PANI nanocomposite was investigated for the first time in the
literature. The nanocomposite has excellent dispersibility in aqueous media, which is crucial for practical
photothermal applications. Photothermal performances of the nanocomposite dispersions were determined
using a 808 nm wavelength near infrared (NIR) laser by monitoring temperature difference with a FLIR-50
thermal camera. The effects of various concentrations (0.025 – 0.1 mg/mL) of photothermal agents and laser
power densities (1.5 – 2.5 W/cm2) on photothermal performance were examined. At 0.1 mg/mL concentration
under 2.5 W/cm2 laser illumination for 10 mins the GO-Ag-PANI ternary nanocomposite exhibited maximum
temperature increase (ΔTmax) of 55.7 °C. In addition, the nanocomposite has high photothermal conversion
efficiency (ŋ = 28.7%). The ternary GO-Ag-PANI nanocomposite demonstrated excellent stability,
temperature increase, and efficiency which show the ternary nanocomposite is a promising candidate for
practical photothermal applications such as, photothermal chemotherapy for cancer treatment.