A facile synthetic methodology for the deposition of different concentrations of Ag nanoparticles (AgNPs) on α-Ni(OH) sheets (α-Ni(OH)-Ag, α-Ni(OH)-Ag, α-Ni(OH)-Ag, and α-Ni(OH)-Ag) is reported using -[3-(trimethoxysilyl)propyl]diethylenetriamine (TPDT) silane. The TPDT aminosilane facilitates the formation of α-Ni(OH) sheets and reduces the Ag precursor to AgNPs, leading to the deposition of AgNPs on α-Ni(OH) sheets. UV-vis absorption spectroscopy, transmission microscopy analyses, X-ray photoelectron spectroscopy, X-ray diffraction, and attenuated total reflectance-Fourier transform infrared spectroscopy techniques were used to characterize the prepared α-Ni(OH)-Ag composite materials. High-angle annular dark-field scanning transmission electron microscopy-energy-dispersive X-ray spectroscopy mapping images and scanning electron microscopy-energy-dispersive X-ray spectroscopy mapping images were recorded to understand the α-Ni(OH)-Ag composite sheet materials. The optical sensing property of α-Ni(OH)-Ag composite materials toward toxic Hg ions were investigated using a UV-vis absorption spectroscopy technique. The α-Ni(OH)-Ag composite material showed selective sensing behavior.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9631721 | PMC |
| http://dx.doi.org/10.1021/acsomega.2c05812 | DOI Listing |
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