| Autor: |
Karthika, M., Balu, A. R., Suganya, M., Chitra Devi, S., Sriramraj, M., Devendran, K., Vinitha, G., Delci, Z., Balamurugan, S. |
| Předmět: |
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| Zdroj: |
NANO; Mar2023, Vol. 18 Issue 3, p1-17, 17p |
| Abstrakt: |
Chitosan, a cationic polymer, is loaded on Ni-doped copper monosulfide (CuS) NPs with optimal Ni doping concentration, and electrochemical, third-order nonlinear, magnetic and antibacterial characteristics of chitosan unloaded and loaded CuS:Ni nanoparticles are compared. The crystallite size of pure CuS increased with Ni doping and the 10 wt.% Ni-doped CuS NPs exhibit a maximum crystallite size of 41 nm. The presence of Ni in the doped samples was acknowledged by the existence of Ni 2p 3 ∕ 2 and Ni 2p 1 ∕ 2 peaks at binding energies 851 eV and 873.1 eV, respectively from the XPS spectrum. Optical reflectance decreased with Ni doping and the optical band gap varied from 2.56 eV to 2.4 eV. Specific capacitance increased with Ni doping. Diamagnetic nature of CuS changed to ferromagnetic with Ni doping. The 10 wt.% Ni-doped CuS exhibits a high third-order nonlinear absorption coefficient and susceptibility value. Bacterial growth inhibition nature of CuS improved with Ni doping. Among the doped samples, the 10 wt.% Ni-doped sample exhibits improved electrochemical, third-order nonlinear, magnetic and antibacterial properties. Keeping this as the optimized Ni concentration, chitosan was loaded. Chitosan-loaded samples exhibited a reduction in crystallite size and an increase in band gap. A high specific capacitance of 96 F/g was realized for the chitosan-loaded sample. Saturation magnetization of 10 wt.% CuS:Ni decreased with chitosan loading. Chitosan, a cationic polymer, is loaded on Ni-doped CuS NPs with optimal Ni doping concentration. Electrochemical, third order nonlinear, magnetic, and antibacterial characteristics of chitosan unloaded and loaded CuS:Ni nanoparticles are compared. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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