Improved size, morphology and crystallinity of hematite (α-Fe2O3) nanoparticles synthesized via the precipitation route using ferric sulfate precursor

Ultrasound irradiation as an effective tool in synthesis of the slag-based catalysts for carboxymethylation

“…Application of the high synthesis temperature in the case of water treatment leads to formation not only of needle shape, but also round shape crystals with an average size 128 ± 42 nm ( Table A3 ) typically observed in the case of hydrothermal synthesis of steel slag [9] , [10] . A survey of literature shows that the assignment of this type of crystals is controversial, as they can be attributed to different phases – TiO 2 (anatase [31] , [32] or rutile [32] ), Fe 2 O 3 [33] , [34] or CaCO 3 [30] , [35] . Moreover, presence of the numerous impurities complicates the process of phase identifications even further, as illustrated for Fe 2 O 3 doped with inorganic cations [33] .…”

Bentonite-based composites with ceramic and metallic powders additions for use as filters

“…They are specific for these materials and have been highlighted in many previous studies. [5][6][7][8][9][43][44][45][46][47][48][49][50][51][52][53] Compared to the basic composition of bentonite, the diffraction analyses highlight the existence of mullite type compound. For the same type of compound there are multiple peaks diffraction angles (respective diffraction angles are specified in Figures 10 and 11).…”

Green synthesis characterization and antimicrobial activity againstStaphylococcus aureusof silver nanoparticles using extracts of neem, onion and tomato

“…TEM is one of the most popular techniques used for the identication of the shape, size and morphology of nanoparticles synthesized by various methods, including green synthesis. 67,68 The TEM images with the particles size distributions displayed as insets in the form of histogram charts are portrayed in Fig. 10.…”