4.5 Article

NiTe Magnetic Semiconductor Nanorods for Optical Limiting and Hydrogen Peroxide Sensor

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Publisher

SPRINGER
DOI: 10.1007/s10904-023-02565-4

Keywords

NiTe Nanorods; Ferromagnetism; Optical limiter; Hydrogen peroxide; Human serum; Rat serum

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The hydrothermal technique was used to synthesize nickel telluride nanorods (NiTe NRs) using ascorbic acid and cetrimonium bromide as reducing agents. The temperature-dependent magnetic study showed that NiTe NRs exhibited ferromagnetic behavior. The materials obtained had excellent optical limiting properties under 532 nm laser excitation, with a high sensitivity and selectivity when used as an electrode for hydrogen peroxide detection.
The hydrothermal technique was used to make nickel telluride nanorods (NiTe NRs) utilizing ascorbic acid and cetrimonium bromide (CTAB) as reducing agents. Temperature dependent magnetic study for NiTe NRs shows a ferromagnetism behavior. Under 532 nm laser excitation, the obtained materials had a better optical limiting property, with a two photon absorption coefficient of 6.6 x 10(- 10) m/W and an optical limiting of 2.44 J/cm(2) at 200 mu J. NiTe NRs modified electrode shows a excellent hydrogen peroxide electrocatalytic activity with reproducibility, repeatability and durability. It displays an outstanding sensitivity of 6.35 mu A mu M- 1 cm(- 2) and a detection limit of 6 nM. In the presence of interfering species such as dopamine, uric acid, ascorbic acid, glucose, and folic acid, the electrode has a high level of selectivity. A real sample analysis for NiTe NRs sensor has been established in human serum and rat brain serum showed good recoveries.

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