Cobalt blue pigments, which mainly comprise CoAl2O4, are widely synthesized as nano-scale particles using the coprecipitation method. Such ultrafine powders necessary for ceramics industry because of their significant effect on color glaze and bulk tiles. In this paper, cobalt pigments have been prepared method then subjected to supercritical fluid drying. The differences in physicochemical opt...

the structural and electrical properties of polyaniline-cobalt sulphate nanocomposite prepared by chemical method.polyaniline-cobalt sulphate nanocomposites were synthesized by the cobalt sulphate and ammonium persulphate and aniline.this paper reports on chemical technique using for synthesis of cobalt nanoparticles in the composite bridge is aniline. electrical conductivity of polyaniline wit...

Two new cobaltous-porphyrin complexes, namely (?-piperazine)-bis[(meso-tetra(para-methoxyphenyl)porphyrinato)]cobalt(II) and (piperazine)[meso-tetra(para-chlorophenyl)porphyrin]cobalt(II) dichloromethane disolvate, with the formulas [{CoII(TMPP)}2(?2-pipz)] (complex 1) [CoII(TClPP)(pipz)]·2CH2Cl2 2), were used efficiently as catalysts in degradation of 4-nitrophenol (4-NP) an aqueous hydrogen p...

Detection of defective crystal structures can help in refute such to decrease industrial defects. In our research, we are concerned with Silicon nitride crystals. There four types structure classes, namely no-defect structures, pristine random displacement and 25% vacancies structures. This paper proposes a deep learning model detect the high accuracy precision. The proposed consists both class...

In this article, we report a facile precursor pyrolysis by sol-gel method to prepare spinel-type Cobalt-substituted zinc aluminate nanoparticles (Zn1–xCoxAl2O4, 0 ? x 1). The relationship between the degree of crystallinity and optical properties under effect calcination temperature was investigated. synthesised powders were characterized means X-ray diffraction (XRD), Thermogravimetry Differen...

Abstract In this present study, a novel method to fabricate bimetallic Fe-Co catalyst supported on waste silica was investigated for the photo-Fenton-like (PFL) degradation of Methylene Blue (MB) dye. The uniqueness work is preparation via fluidized-bed crystallization (FBC) process. Under optimum conditions initial pH 3.0, 3.0 mM H 2 O , and 1.0 g L -1 FBC-derived Fe-Co/SiO (fFCS), maximum res...