The Fourier transform infrared (FTIR) spectrum demonstrated that the stretching vibration peak for the carbonyl group (C=O) in EGCG shifted from 1691 cm−1 to 1640 cm−1 in MPN@DP-PCs, indicating the presence of strong hydrogen bonds between the EGCG ligands and the PC templates (...
and Rosensweig has not specified exactly whether the Langevin parameter should be determined using the peak amplitude of the alternating field or another value should be considered. But in research related to this matter, peak amplitude has been used and accurate answers have been obtained...
Fourier-transformed infrared spectroscopy (FTIR) was used to determine the functional groups of Fe3O4and GO@Fe3O4. For this purpose, an IR Prestige-21 spectrometer (Shimadzu) was used, and all the samples were subjected to infrared emission through attenuated total reflectance (ATR) crystal ana...
The FTIR characteristic peaks of MWCNTs weakened or disappeared due to the anchor of Fe3O4 nanoparticles and Fe鈥揙 peak at 570 cm鈥 1 was indicative of the formation of Fe3O4. TEM observation revealed that Fe3O4 nanoparticles were tightly anchored by MWCNTs. The Fenton-like catalytic ...
3.4. FTIR spectroelectrochemistry (IR-SEC) To elucidate the changes in the structure in response to the reduction process, the Fe-Fe complexes were analysed by infrared spectroelectrochemistry. Fig. 5 illustrates changes in the IR spectra of H2 in the course of reduction: the bands at 2080, ...
Fe3O4@AA (AA = L-tryptophan, L-serine, L-proline and L-cysteine) for potential therapeutic application in anticancer drug delivery. The obtained materials were characterised using XRD, FTIR, DLS analysis, SEM, thermogravimetry (TG), differential scanning calorimetry (DSC), and UV–vis ...
The Fe(0) peak in HR-XPS of Fe 2p showed similar variation tendency toward B(0) (Fig. 3d), further indicating Fe2O3@FeB was core-shell structure with Fe2O3 as core and amorphous FeB alloy as shell. (Fig. 3) 3.2. Performance of Fe2O3@FeB in Fenton oxidation As presented in ...
(CO-OR) at 1780 cm−1appeared in Fe-CDs@Ce6, which was originated from the condensation between Fe-CDs and Ce6. Also, the peak position of C=O at 1634 cm−1shifted, probably indicating that the chemical environment of carbonyl groups changed after the coupling reaction of Ce6. More...
Fe3O4@AA (AA = L-tryptophan, L-serine, L-proline and L-cysteine) for potential therapeutic application in anticancer drug delivery. The obtained materials were characterised using XRD, FTIR, DLS analysis, SEM, thermogravimetry (TG), differential scanning calorimetry (DSC), and UV–vis ...
www.nature.com/scientificreports OPEN Removal of silver nanoparticles by mussel-inspired Fe3O4@ polydopamine core-shell received: 10 November 2016 microspheres and its use as efficientaccepted:13January2017 catalyst for methylene bluePublished:16February2017 reduction Maoling Wu,Yinying Li, Rui...