Efficient selective 4-aminophenol sensing and antibacterial activity of ternary Ag2O3 center dot SnO2 center dot Cr2O3 nanoparticles
Author(s)
Subhan, Md Abdus
Jhuma, Sanjida Sultana
Saha, Pallab Chandra
Alam, MM
Asiri, Abdullah M
Al-Mamun, Mohammad
Attia, Sara Aly
Emon, Tanvir Hossain
Azad, Abul Kalam
Rahman, Mohammed M
Griffith University Author(s)
Year published
2019
Metadata
Show full item recordAbstract
In this study, Ag2O3·SnO2·Cr2O3 nanoparticles (NPs) were synthesized via a simple and quick co-precipitation method. The produced materials were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), and photoluminescence (PL) spectroscopy. The hydrodynamic size and zeta potential were measured under acidic and basic pH conditions. The photocatalytic activities of the newly synthesized composite were studied considering various parameters. Antibacterial activity ...
View more >In this study, Ag2O3·SnO2·Cr2O3 nanoparticles (NPs) were synthesized via a simple and quick co-precipitation method. The produced materials were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), and photoluminescence (PL) spectroscopy. The hydrodynamic size and zeta potential were measured under acidic and basic pH conditions. The photocatalytic activities of the newly synthesized composite were studied considering various parameters. Antibacterial activity tests showed that Ag2O3·SnO2·Cr2O3 is an excellent anti-bacterial agent. A reliable electrochemical sensor probe was designed by depositing the synthesized Ag2O3·SnO2·Cr2O3 NPs onto the flat part of GCE, which showed excellent oxidation activity and selectivity towards 4-aminophenol (4-AP) in a phosphate buffer medium. During electrochemical analysis, the desired 4-AP sensor responded linearly over a large concentration range (0.1 nM–0.01 mM), which is known as the linear dynamic range (LDR), and exhibited appreciable sensitivity (25.1962 μA μM−1 cm−2). Furthermore, it showed a considerably low limit of detection (98.41 ± 4.92 pM), good reproducibility, fast response (20.0 s), and long-term stability in the phosphate buffer medium. This is an efficient method for the fabrication of a selective electrochemical sensor using the electrochemical approach for safety in environmental and healthcare fields.
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View more >In this study, Ag2O3·SnO2·Cr2O3 nanoparticles (NPs) were synthesized via a simple and quick co-precipitation method. The produced materials were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), and photoluminescence (PL) spectroscopy. The hydrodynamic size and zeta potential were measured under acidic and basic pH conditions. The photocatalytic activities of the newly synthesized composite were studied considering various parameters. Antibacterial activity tests showed that Ag2O3·SnO2·Cr2O3 is an excellent anti-bacterial agent. A reliable electrochemical sensor probe was designed by depositing the synthesized Ag2O3·SnO2·Cr2O3 NPs onto the flat part of GCE, which showed excellent oxidation activity and selectivity towards 4-aminophenol (4-AP) in a phosphate buffer medium. During electrochemical analysis, the desired 4-AP sensor responded linearly over a large concentration range (0.1 nM–0.01 mM), which is known as the linear dynamic range (LDR), and exhibited appreciable sensitivity (25.1962 μA μM−1 cm−2). Furthermore, it showed a considerably low limit of detection (98.41 ± 4.92 pM), good reproducibility, fast response (20.0 s), and long-term stability in the phosphate buffer medium. This is an efficient method for the fabrication of a selective electrochemical sensor using the electrochemical approach for safety in environmental and healthcare fields.
View less >
Journal Title
New Journal of Chemistry
Volume
43
Issue
26
Subject
Chemical sciences
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
LIQUID-FUNCTIONALIZED GRAPHENE