On the other hand, the peak intensities are relatively the same after the 1:0.5 mole ratio that 0.5 was chosen as the optimum. Download: Download high-res image (565KB) Download: Download full-size image Fig. 3. FTIR spectra of bare and VTMO modified SiO2 nanoparticles with different ...
Therefore, Fourier-transform infrared (FTIR) spectroscopy was employed to analyze the MIP, NIP, and amino-functionalized SiO2 particles. As illustrated in Fig. 3n, the characteristic peak at 3470 cm⁻1 indicates the presence of unstable hydroxyl groups (–OH) on the surface of SiO2. The ...
The observed FTIR peak at 940-960 cm-1 attributed to -Si-O-Ti-bonding mode, ensuring photocatalyst (TiO2) adherence to the Fe3O4/SiO2 cluster. The prepared Fe3O4/SiO2/TiO2 composite showed good photocatalytic activity for the paraquat removal and showed a good magnetic property ...
FTIR Equivalent Weight Determination of Perfluorosulfonate Polymers Fourier transform infrared (FTIR) and attenuated total reflectance (ATR) spectroscopy studies of the sulfonyl fluoride, potassium salt, and sulfonic acid f... SA Perusich - 《Journal of Applied Polymer Science》 被引量: 45发表: 2011...
Crystal structure, thermal stability, pore structure, and chemical composition of the SiC@SiO2NFA.aXRD patterns,bFTIR spectra,cRaman spectra, anddTGA curves,eN2adsorption/desorption isotherms and corresponding adsorption pore size distribution (inset),fXPS survey spectrum and high-resolutiongSi 2p,hC ...
FTIR spectra of (a) natural wood and (b) the PVB/SiO2/wood. Full size image The thermogravimetric and differential thermogravimetric analysis (TG–DTG) curves of the untreated wood and PVB/SiO2/wood are shown in Fig. 5. As shown in Fig. 5a, a small weight loss of 2–3% was observed...
Fig. 5a–d shows the ATR-FTIR spectra for the hydrogel constructs immersed in SBF for different durations. In the figures, there is a sharp, intensive dip at 1026 cm−1 and a shoulder at 960 cm−1. Both are exclusively attributed to the presence of hydroxyapatite [34]. The double ...
The crystallization of the K2O · Nb2O5 · 2SiO2 (KNS-50) glass has been studied by DTA, XRD, SEM and FTIR. The as-quenched glass crystallizes in two steps during a DTA run. In the first step only potassium niobates crystallize while at the higher temperatur...
FTIR: Fourier-transform infrared spectroscopy GoF: Goodness of fit HRM: Hot Rolling Mill ICDD: International Centre for Diffraction Data l-RHA: Leached rice husk ash PPM: Parts Per Million RH: Rice Husk RHA: Rice Husk Ash ROT: Run-out Table SDS: Sodium dodecyl sulfate SS: ...
The microstructure of the complex microgel was characterized by Fourier transform infrared (FTIR), transmission electron microscopy (TEM), thermogravimetric (TG), dynamic light scattering (DLS), and differential scanning calorimeter (DSC). Moreover, the effect of doping organic dyes and temperature on...