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- W2891276954 abstract "This work involves the synthesis of copper telluride-polypropylenimine tetra(5-(2-thienyl)salicylaldimine) (CuTe@PPI) and copper antimonide-polypropylenimine tetra(5-(2-thienyl)salicylaldimine) (CuSb@PPI) core-shell nanoparticles (NPs), using two-pots and one-potsynthesis methods, respectively. Their morphology was studied by X-ray diffractionspectroscopy (XRD), high resolution transmission electron microscopy (HRTEM) and highresolution scanning electron microscopy (HRSEM); while their structures were characterized byFourier transform infrared spectroscopy (FTIR) and elemental analysis. Photophysical propertiesof the core-shell NPs were determined from ultraviolet-visible absorption spectroscopy (UV-Vis)and photoluminescence spectroscopy (PL). For core-shell NPs produced via two-pots methodonly CuTe@PPI exhibited ? ? ?* and n ? ?* which indicate that CuSb@PPI produced viatwo-pots method was unsuccessfully synthesized. The ? ? ?* and n ? ?* transitions indicatethe presence of polypropylenimine tetra(5-(2-thienyl) salicylaldimine) (PPI) on the surface ofCuTe NPs and CuSb NPs. FTIR confirmed coordination of PPI on the surface of CuTe NPs andCuSb NPs by showing a shift in wavenumber of C=N group bands from PPI. HR-TEM showedthat the CuTe@PPI synthesized via one-pot method have a wide particles sizes distribution withan average particles size of 13.60 nm while for CuTe@PPI synthesized via two-pots it wasimpossible to determine the particles size due to aggregation. CuSb@PPI synthesized via twopotsmethod and one-pot method has a wide particles sizes distribution with an average size of7.98 nm and 11.61 nm respectively. The average particles sizes determined by HR-SEM werefound to be 35.24 nm (CuTe@PPI two-pots method), 33.90 nm (CuTe@PPI one-pot method),18.30 nm (CuSb@PPI two-pots method), and 16.18 nm (CuSb@PPI one pot method)." @default.
- W2891276954 created "2018-09-27" @default.
- W2891276954 creator A5046022561 @default.
- W2891276954 date "2018-01-01" @default.
- W2891276954 modified "2023-09-23" @default.
- W2891276954 title "Photophysics of Thiophenosalicylaldimine-functionalized G1-Polyprolyleniminato-Copper Telluride/Antimonide core-shell Nanomaterials" @default.
- W2891276954 hasPublicationYear "2018" @default.
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