The FTIR spectrum displayed that the adsorbent surface comprises mostly (-OH and C=O) groups which are principally accountable for the adsorption of Ni(Ⅱ). A series of batch adsorption experiments were done to study the effect of several parameters as pH, adsorbent dose, time of contact, ...
A method is described which has been successfully used to produce single crystals of calcium oxide of excellent optical quality from the melt. The absolute refractive index of two of these crystals was determined by the method of minimum deviation at room temperature (22°–26°C) for six wavel...
The structures of xLa2O3·(50-x)CaO·50P2O5 (x=0, 1, 3, 6, 12mol%) samples were investigated by X-ray diffraction (XRD), Raman spectrum, Fourier transform infrared spectrum (FTIR), and differential scanning calorimetry (DSC). The results show that lanthanum oxide acts as network ...
TG-FTIR TG-FTIR was employed to study the thermal degradation performance of CA/AgCl nanocomposites. Figure 6 shows the 3D FTIR spectrum of the gas generated during the thermal degradation of CA/AgCl nanocomposites, in which the information of wavenumber, infrared absorbance and time are included....
(10 min, 30 min, 1 h, 3 h and 6 h). Subsequently, the supernatant and precipitate at diverse time points were collected through centrifugation, in which the supernatant was used for the determination of the fluorescence spectrum, while the precipitate was characterized by SEM after washing ...
FTIR spectroscopy on high-pressure experiments quenched from 4–9.5 GPa and 1000–1200 °C combined with ab initio calculations. The experimentally determined water solubilities are in the range of 107–178 ppm. Our FTIR spectra and ab initio calculations indicate that for phosphorus-free γ-Ca2...
Calcium oxide and silica fume (SiO2, Aerosil 200, 0.9 wt% HCl) were used as starting materials for the C-S-H synthesis. CaO was obtained by burning calcium carbonate (CaCO3, Merck, pro analysis) for 2 times 8 h at 900 °C. To assure a homogeneous suspension a water/solid (W/S) ...
Bone regenerative engineering could replace autografts; however, no synthetic material fulfills all design criteria. Nanocarbons incorporated into three-dimensional printed (3DP) matrices can improve properties, but incorporation is constrained to low wt
characterize GCPC-ACP, by which FTIR spectrum of the gas released during heating the sample for TGA is collected simultaneously. In addition to water (8.37 wt%), a high content of glycerol (27.4 wt%) is determined in GCPC-ACP as well, which is further confirmed by gas ...
Further, the FTIR spectrum of CMC showed a characteristic peak of the C–O bond at 1,050 cm−1. The disappearance of the double absorption peak after polymerization verifies the formation of a chemically crosslinked PAM network. Compared to the FTIR spectra of AM and CMC, the characteristic...