Isolated walls of Bacillus subtilis Marburg, prepared in a manner which avoided metal contamination other than by the growth medium, were incubated in dilute metal solutions, separated by membrane filtration (0.22 mum), and monitored by atomic absorption to give uptake data for 18 metals. Substantial amounts of Mg2+, Fe3+, Cu2+, Na+, and K+ (amounts which were often visible as Au3+, and Ni2+ (t...

The electronic structures of the luminescent center ions Cr3+ and Fe3+ in deep red phosphors LiAl5O8:Cr3+, ?-Al2O3:Cr3+, ?-LiAlO2:Fe3+ were calculated by DV-X? method, which local distortion induced replacement Al3+ sites host crystals was reproduced classical molecular dynamics (MD) simulation. MD simulations based on allowed for handling more than 1000 atoms lattice relaxation calculations, a...

A rhodamine-based fluorescent polymer P(MMA-co-RB) has been synthesized via an intermediate NCO-containing generated by the Lossen rearrangement reaction. The property of with regard to metal ions, such as Cu2+, Fe3+, Cr3+, Al3+, Zn2+, Co2+, Sn2+ and Ag+, was studied fluorescence emission spectroscopy. results demonstrate that intensity decreased gradually increase concentration Cu2+ ion. Furth...

Abstract. Authigenic epidote supergroups are an abundant accessory mineral in the calcium–aluminum silicate and thermometamorphic hydrothermal zones of Campi Flegrei (Phlegraean Fields) geothermal field located west Naples, Italy. Geothermal exploration for high-enthalpy fluid produced drill core cuttings to ∼ 3 km depth Mofete (MF1, MF2, MF5) San Vito (SV1, SV3) wells, where measured down-hole...

Polymeric aluminum ferric sulphate(PAFS) was prepared from high-sulfur bauxite flotation tailings and red mud by roasting, acid leaching polymerization. The effects of temperature, time, liquid-solid ratio on the rate Al3+ Fe3+were investigated. optimal conditions are as follows: temperature 100℃, time 90 min, sulfuric concentration 4.5mol/L 5 mg/L. Infrared spectroscopy X-ray diffraction analy...

The focus of this study was to improve the Reverse Osmosis Cooling (ROC) process by using CaCO3 for neutralization and selective recovery Fe(OH)3 at pH 3.5. By a specific inhibitor, ferric hydroxide recovered separately from gypsum other metals present in mine water. Ferric processed pigment, product that is imported used as colorant paints tiles. In addition pigment recovery, aluminum calcium ...