FTIR Characterizations of the Gamma-Ray-Irradiated Silica Nanoparticles/γ-APTES Nanocomposite with UV Annealing

Preparation and characterization of novel CuS / SiO 2 @n‐octadecane phase‐change nanocapsules enhanced photothermal conversion for solar energy utilization

“…The stretching and bending vibration of SiOSi and SiO groups were noted at 1089 and 464 cm −1 , respectively 31 . The absorption peak at 1463 cm −1 belonged to the characteristic band of NH, and it was observed at the same position in all the spectra, proving that APTES was indeed bridged to the SiO 2 shell 40 . The rocking vibration of the CH bond was observed near 1663 cm −1 .…”

“…31 The absorption peak at 1463 cm À1 belonged to the characteristic band of N H, and it was observed at the same position in all the spectra, proving that APTES was indeed bridged to the SiO 2 shell. 40 The rocking vibration of the C H bond was observed near 1663 cm À1 . It was noteworthy that the absorption peaks at 2921 and 2848 cm À1 correspond to the bonding characteristics of linear alkanes.…”