نتایج جستجو برای: mn2o3 particles
تعداد نتایج: 156525 فیلتر نتایج به سال:
The potential for Mn oxides to modify the biogeochemical behavior of U during reduction by the subsurface bacterium Shewanella putrefaciens strain CN32 was investigated using synthetic Mn(III/IV) oxides (pyrolusite [ -MnO2], bixbyite [Mn2O3] and K -birnessite [K4Mn14O27 8H2O]). In the absence of bacteria, pyrolusite and bixbyite oxidized biogenic uraninite (UO2[s]) to soluble U(VI) species, wit...
Mn3O4 and Mn2O3 were synthesized by potentiostatic electrodeposition from a de-aerated manganese acetate sodium sulfate electrolytic bath, followed annealing. The parameters (including applied potential, precursor concentration, pH, temperature) the thermal treatment conditions investigated to obtain best control over microstructure stoichiometry of oxides. We found that voltage is key paramete...
Fe2O3/Mn2O3 nanocomposites and impregnated porous silicates (Fe2O3/Mn2O3@SiO2 [FMS]) were prepared investigated as catalytic adsorbents. The catalysts applied for cationic anionic dye pollutants in the adsorption, Fenton reaction, photocatalysis processes at a pH of 7. nanoparticles (FM-NPs) using co-precipitation method SiO2 by sol–gel process. synthesized materials characterized various sophi...
Dealuminated BEA zeolite (SiBEA) was chosen as a support of metal oxide(s) phase for catalytic combustion volatile organic compounds (VOCs). Copper and/or manganese were deposited at various Cu/Mn molar ratios. Factors influencing the activity found by physicochemical methods, including XRD, XRF, low-temperature N2 adsorption, FT-IR, UV–Vis-DRS, STEM-EDX, XPS and H2-TPR. Depending on chemical c...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید