Fig. 2: Structural and morphological characterization of PB and PB + VC after MEI treated. | Nature Communications

Fig. 2: Structural and morphological characterization of PB and PB + VC after MEI treated.

From: In vivo electrochemical reduction-induced reconfiguration of Prussian blue for metal counterion-free potassium removal in hyperkalemia

Fig. 2: Structural and morphological characterization of PB and PB + VC after MEI treated.The alternative text for this image may have been generated using AI.

a XRD patterns of PB and PB + VC, right side is the enlarged (100) diffraction peak. b FTIR spectra of PB and PB + VC, right side is the value of wavelength (C ≡ N). c Raman spectrum of PB and PB + VC. d, e Mössbauer spectra of PB and PB + VC. f XPS wide spectrum for PB and PB + VC. g Schematic diagram of the reaction mechanism of adsorption/reduction mechanism. h SEM image showing the morphological structure of PB + VC. i TEM image delineating the article size distribution of PB + VC at low magnification. j TEM image delineating the structural details of PB + VC at high magnification. k, l HAADF-STEM image and corresponding energy dispersive spectrometer (EDS) element. All the microscopic images were repeated three times with similar results. The PB + VC sample was prepared by mixing PB and VC (1:1 mass ratio) in MEI at 37 °C with shaking (180 rpm, 2 h), followed by centrifugation, water washing, lyophilization (48 h), and finally structural characterization. In the processed PB + VC, the VC component and its oxidation products dissolve in aqueous solution, yielding a final product consisting primarily of K+-adsorbed PB. Source data are provided as a Source Data file.

Back to article page