Synthesis and Characterization Nano Structure of MnO2 via Chemical Method

Abstract

In the current research, Magnesium oxide II (MnO2) nanostructures were prepared by chemical route from hydro manganese chloride salt using Potassium hydroxide as reducing agent. X-Ray diffraction (XRD), SEM and Fourier transformation infrared (FTIR) used to characterize both particle size and structure of MnO2 nanoparticles. XRD results confirmed impurity of synthesized powder with α-MnO2 as predominant phase. The average particle size of manganese dioxide was in the range 25 -30 nm. Photographs of scanning electron microscope (SEM) showed two hierarchical structures, cluster agglomeration and chain appearance.

Exploiting of Green Synthesized Metal Oxide Nanoparticles for Spectrophotometric Determination of Levofloxacin, Cephalexin, and Cefotaxime Sodium in Commercial Products

“…The XRD pattern of MnO 2 nanoparticles ( Figure 4 b) displayed diffraction peaks at 2θ degree angles of 13.8°, 17.92°, 29.52°, 38.12°, 43.70°, 50.69°, 54.91°, 56.54°, and 62.15° corresponding to (1 0 0), (2 0 0), (3 1 0), (2 1 1), (3 0 1), (4 1 1), (6 0 0), (5 2 1), and (0 0 2) tetragonal structure. The recorded peaks are in good agreement with the JCPDS Card number of 44-0141 [ 64 ]. Debye–Scherrer formula was followed to calculate the particle size of the crystallites of MnO 2 NPs.…”

Experimental and Computational Study of Zr and CNC-Doped MnO2 Nanorods for Photocatalytic and Antibacterial Activity

“…An absorption peak at 1580 cm –1 shows the presence of a hydroxyl group of Mn–OH and O–H–O due to absorption of water during sample preparation. 36 Selected area electron diffraction profiles of CNC, MnO 2 , CNC-MnO 2 , and Zr/CNC-MnO 2 are shown in Figure 2 c–f. The obtained rings corroborated the polycrystalline phase of NRs, confirming that the samples were crystalline in nature, while the indexed rings closely matched with XRD data ( Figure 2 a).…”

Structural, Optical and Thermal Properties of (PEG/PAA:MnO2) Nano Composites

“…Figure (1) shows microscopic images of(MnO2) powder before and after calcination at (400,600,800℃). It can be seen that (MnO2 ) powder consists of agglomerated plates that resemble clusters, and the size of the plates increases with increasing calcination temperature [9][10][11] .…”

“…3, Issue 2 pp. 107-119 (2022) ISSN: 2734-7990 www.techniumscience.com prepared nano composites [11][12][13]. The absorption bands detected at (1190 cm -1 ) and (1298 cm -1 ) that fall within the range (1180 -1300) cm -1 are due to the expansion vibrations of the (C-O) bond within the structure of the polymer mixture [14].…”