WebAug 6, 2024 · This article presents a method that efficiently enables us to identify differences in the composition of water clusters. The Fourier transform infrared (FTIR) spectra in the O–H stretching region 2500 cm −1 to 4000 cm −1 of apple juice, raspberry juice, lyophilized water from apples (apple water), and lyophilized water from raspberry juice (raspberry … WebJan 27, 2024 · CuS nanoparticles (CuS NPs) were synthesized by a simple precipitation method using rice starch water as a capping and reducing agent. The phase composition, morphology, absorbance, chemical bonds, and chemical states of the CuS NPs were investigated systematically and then examined for dye degradation catalytic activity with …
Biogenic Selenium Nanoparticles: A Fine Characterization to …
WebJan 22, 2024 · The observed FTIR peaks of pure CuS and Mn 2+ doped CuS are tabulated in table 2. The peaks are assigned the functional vibrational bonds . The majority bonds are owing to impurities from the chemicals used during synthesis. The Mn 2+ doped CuS showed Mn-O bond positioned at 426 cm −1 clearly stating doping of Mn into CuS . WebThis study specifically focuses on understanding the role of water vapor and adsorbed water in the transformation of CuS NP surfaces to CuSO 4 in humid environments. ... (ATR-FTIR) spectroscopy. These results show that the transformation of CuS to CuSO 4 is highly dependent on relative humidity (RH). While sulfide to sulfate conversion is not ... krystal accounting nedlands
Synthesis and enhanced luminescence properties of CuS@YF
WebApr 7, 2024 · Ultrasmall starch-capped CuS quantum dots (QDs) with controllable size were chemically fabricated in an aqueous medium. The phase of the CuS QDs was confirmed via X-ray diffraction (XRD), whereas the characteristic localized surface plasmon resonance (LSPR) peak in the near-infrared (NIR) region was measured using UV-Vis … WebNov 10, 2015 · The FTIR spectra of GO-COOH and GO-COOH-CuS are shown in Fig. 4. The bands at 1721 and 1070 cm −1 are ascribed to the C = O and C–O stretching vibrations of carboxylic acid group, respectively 15. Furthermore, the doublet bands at 1627 and 1373 cm −1 correspond to the COO- symmetric and asymmertric vibrations complexed with … WebFTIR spectrum of Un-Doped CuS, 0.025 mol Fe:CuS, 0.05 mol Fe:CuS. In order to measure electrical behavior, two-probe current voltage (I–V) method was implemented to investigate I–V reaction by synthesized samples under temperature and voltage variation (Fig. 6 … krystal acres alpaca store