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- W4313406384 abstract "This research synthesized natural magnetic particles/chitosan/gold nanoparticles composites (NMP/Chi/AuNPs) using a green method. AuNPs were synthesized using chitosan as a reducing agent and stabilizer in one step. The obtained AuNPs were characterized using UV-Vis spectrophotometer and TEM. Results showed that AuNPs were spherical with an average of 14.9 nm and absorbed at visible light (~530 nm). Then, AuNPs were impregnated on NMP/Chi at room temperature. The impregnation results were characterized using FTIR, XRD, and TEM. In the IR spectra of NMP/Chi and NMP/Chi/AuNPs, the NH bending vibrations of NH 2 are shown at 1604 and 1631 cm -1 . The NMP/Chi/AuNP showed a decrease in intensity and the peak shift to 1395 cm -1 , stretching vibration of C-O from primary alcohol group. Fe-O vibrations of Fe 3 O 4 in NMP/Chi and NMP/Chi/AuNPs are shown at 566 and 583 cm -1 . The intensity peak shift and decrease indicate an interaction between AuNPs and NMP/Chi. The results of the XRD NMP/Chi/AuNPs characterization showed that the diffraction peak at 2Ө 35.44° decreased in intensity, resulting in a decrease in crystallinity caused by impregnated AuNPs and the destruction of hydrogen bonds. The new diffraction peak at 2Ө 38.24° indicates the presence of AuNPs. TEM analysis showed an amorphous layer around the NMP, and the average size of AuNP in the NMP/Chi/AuNP composite was 23.01 nm." @default.
- W4313406384 created "2023-01-06" @default.
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- W4313406384 date "2022-12-19" @default.
- W4313406384 modified "2023-10-16" @default.
- W4313406384 title "One-Pot Synthesis and Characterization of Gold Nanoparticle-Embedded Natural Magnetic Particles/Chitosan Composite" @default.
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- W4313406384 doi "https://doi.org/10.4028/p-843733" @default.
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