نتایج جستجو برای: cadmium ion
تعداد نتایج: 227697 فیلتر نتایج به سال:
The asymmetric unit of the title compound, [Cd(C(10)H(8)N(2))(3)](ClO(4))(2)·0.5H(2)O, consists of one complex [Cd(bpy)(3)](2+) cation (bpy = 2,2'-bipyridine), two perchlorate anions and one water molecule with half-occupancy. The central cadmium(II) ion is bound to six N atoms from three bpy ligands in a distorted octa-hedral coordination, with Cd-N bond distances ranging from 2.304 (3) to 2.3...
Synechococcus sp. PCC 7942 has the ability to grow in mass quantity under ideal conditions; such an ability provides usable biomass at a minimal effort. Using lyophilized biomass grown under normal conditions, Synechococcus was tested for its potential to bind metal ions from solution. Batch experiments have determined the optimum binding pH, time dependency, and metal binding capacities for co...
The title dinuclear cadmium complex, [Cd(2)(NO(3))(4)(C(28)H(32)N(6))], is located on an inversion center. The unique Cd(II) ion displays a 5 + 2 coordination. A distorted square-pyramidal geometry is formed by the dipicolyl-amine group of the ligand via the N atoms in a meridional fashion and two O atoms of the nitrate ligands with short Cd-O distances. The coordination is completed by two loo...
Photoreactivity of cadmium sulfide nanoparticles as undoped and doped with manganese, nickel and copper were studied in the decolorization of methylene blue and safranin under UV and Vis irradiations. The dopant, mole fraction of dopant to cadmium ion, pH of solution, dosage of photocatalyst and concentration of dye are variables that influence on the photoreactivity of nanocatalysts. In among ...
Inducible cadmium-binding proteins (Cd-BP) in the mussel, Mytilus edulis, were resolved into two molecular weight components, designated Cd-BP10 and Cd-BP20, by gel-permeation chromatography on Sephadex G-75. Each of these two molecular weight components were further resolved into four subcomponents by DEAE-ion-exchange chromatography. All eight subcomponents bound cadmium and exhibited signifi...
a novel composite adsorbent, silica aerogel activated carbon was synthesized by sol-gel process atambient pressure drying method. the composite was characterized by fourier transform infraredspectroscopy (ft-ir), scanning electron microscopy (sem), differential scanning calorimetry(dsc) and nitrogen adsorption / desorption isotherms (bet).in the present study, the mentioned adsorbent was used m...
This study deals with the uptake of Cd2+ and Mn2+ ions from contaminated water using two Iranian natural clinoptilolite-rich tuffs from Meyaneh (Z-m), and Semnan (Z-s) regions , and a synthetic zeolite-P from Z-m sample (Z-P) under static (batch operation) and dynamic (column operation) conditions. To investigate the selectivity of the zeolites towar...
The synthesis of the new Co(II), Ni(II), Cu(II), Cd(II), Pd(II) and Pt(II) complexes with 1-methyllumazine (1-methylpteridine2,4(1H ,3H )-dione, MLM) and 1,6,7-trymethyllumazine (1,6,7-trimethylpteridine-2,4(1H ,3H )-dione, MLMD) is described. The coordination chemistry of these ligands have been investigated and an usual bidentate bonding mode through the N5 and O4 atoms is observed. These com...
Phosphotriesterase, isolated from the soil-dwelling bacterium Pseudomonas diminuta, catalyzes the detoxification of organophosphate-based insecticides and chemical warfare agents. The enzyme has attracted significant research attention in light of its possible employment as a bioremediation tool. As naturally isolated, the enzyme is dimeric. Each subunit contains a binuclear zinc center that is...
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