Resultado de búsqueda
Hace 1 día · Figure 1 displays the FTIR spectrum of the treated cotton fabric (C-CD and C-CF), untreated cotton fabric (CB), and blocked hexamethylene diisocyanate (HDI). The presence of a peak at 1690 cm −1 in the FTIR spectrum of modified cotton fabrics and blocked HDI was attributed to the carbonyl group of carbamate which is absent in the untreated fabric.
Hace 5 días · The chemical recycling of polyester wastes is of great ... The Fourier-transformed R-space spectrum of Ru 4 Mo 1 /TiO 2 showed ... d Ex situ FTIR spectra of LA transformation over Ru 4 Mo 1 /TiO 2 ...
Hace 5 días · Fourier-transform infrared spectroscopy (FTIR) is an indispensable analytical method that allows label-free identification of substances via fundamental molecular vibrations. However,...
Hace 1 día · The spectrum of FTIR of synthesized ZnO nanocrystals for immobilized enzyme and pure nanocrystals was recorded between 4000 and 400 cm −1 (as shown in Fig. 5b). In the FTIR spectrum of immobilized enzyme and pure nanocrystals, a strong absorption band was observed at 3315.6 and 3269.3 cm −1 , respectively, which were maybe due to the O–H functional group.
Hace 1 día · Secondly, the dried waste polyester was placed in a vacuum tube furnace, preheated at 100 °C for 1 h, calcined at 850 °C for 30 min, cooled naturally, and washed alternately 5 times with 10% hydrochloric acid and deionized water. Finally, the WCT-AC was obtained by drying at 80 °C for 24 h in a vacuum drying oven. 2.2.2. Preparation of TiO 2 ...
Hace 14 horas · FTIR spectrophotometric analysis was performed with a Perkin Elmer spectrophotometer (Spectrum 100, Waltham, MA, USA) equipped for the ATR technique. The spectra were analyzed in 32 scans in a wavenumber range of 4000–600 cm −1 using Omnic software.
Hace 5 días · The inherent fluorescent and phosphorescent characteristics of this biomass aerogel confer advantages across a spectrum of applications. Steady and transient photoluminescence spectra and theoretical calculations [( 38 ), note 3] were performed to elucidate the photoluminescent mechanism of the GE-DNA aerogel ( Fig. 4A and figs. S23 to S31) [( 38 ), note 4].
