Infrared Determination of Inorganic Sulfates and Carbonates by the Pellet Technique

Paper Sludge Carbon as an Adsorbent for Fukushima Radiocontaminated Paddy Soil

“…The bands at 2370 cm −1 , 1610 cm −1 , 1425 cm −1 , 1058 cm −1 (shoulder), 1030 cm −1 , 885 cm −1 , and 680 cm −1 of the contaminated PSC were almost identical to those at 2450 cm −1 , 1750 cm −1 , 1625 cm −1 (weak band), 1425 cm −1 , 1050 cm −1 , 850 cm −1 , and 690 cm −1 of the reagent grade barium carbonate in the literature [24], taking into account the variation of different IR instruments and samples in use. The IR bands of the PSCs and literature barium carbonate are given in Table 6.…”

“…IR absorption bands (cm −1 ) of the original PSC, radiocontaminated PSC, and literature barium carbonate[24].…”

Parametrical Study on CO2 Capture from Ambient Air Using Hydrated K2CO3 Supported on an Activated Carbon Honeycomb

“…Figure shows the spectra of a K 2 CO 3 sample subjected to different relative humidity conditions at 40 °C under a flush of N 2 . It is noticed that the sample dried in air at 160 °C presented only the peaks corresponding to the anhydrous carbonate ion, CO 3 –2 : out-of-plane bending at 879 cm –1 , asymmetric stretching at 1400 cm –1 , and in-plane bending at 686 cm –1 . When the salt was subjected to increasing humidity conditions, the spectrum changed significantly.…”

“…It is noticed that the sample dried in air at 160 °C presented only the peaks corresponding to the anhydrous carbonate ion, CO 3 −2 : out-of-plane bending at 879 cm −1 , asymmetric stretching at 1400 cm −1 , and in-plane bending at 686 cm −1 . 48 When the salt was subjected to increasing humidity conditions, the spectrum changed significantly. At 7% RH the initial peaks corresponding to the anhydrous carbonate were still present, although the strongest peak at 1400 cm −1 was now a shoulder and new peaks appeared at 1449, 1350, 1060, and 704 cm −1 .…”

Chronicles of plutonium peroxides: spectroscopic characterization of a new peroxo compound of Pu(iv)

“…34 These observations suggested similar structures for both nitric and sulfuric systems, but also a possible absence of participation of the counter-ion in the coordination sphere of Pu in the solution or in the precipitate. Fourier Transform Infra-Red (FT-IR) spectroscopy on the solids obtained in both nitric and sulfuric media showed the characteristic signatures of nitrates, 29,35 sulphates 34,36 and interstitial and/or coordinated water molecules (Fig. S4, ESI †).…”