Results 11 to 20 of about 214,084 (247)

Modification of Fishbone-Based Hydroxyapatite with MnFe₂O₄ for Efficient Adsorption of Cd(II) and Ni(II) from Aqueous Solution

Indonesian Journal of Chemistry, 2021
Due to their toxicity, Cd(II) and Ni(II) ions in the environment are severe. The hydroxyapatite composite was improved with magnetic MnFe2O4 to remove Cd(II) and Ni(II) ions from an aqueous solution.
Poedji Loekitowati Hariani, Addy Rachmat, Muhammad Said, Salni Salni   +3 more
doaj   +1 more source

Synthesis, Structure, and Magnetism of Binuclear Cu(II)Cu(II), Cu(II)Ni(II), and Ni(II)Ni(II) Complexes Doubly Bridged by Oxymate Groups [PDF]

Bulletin of the Chemical Society of Japan, 1990
Abstract Binuclear complexes, [Cu(L)Cu(L′)(H2O)2]X2 (H2L=3,3′-trimethylenedinitrilobis(2-butanoneoxime) (H2dopn) or 3,3′-ethylenedinitrilobis(2-butanoneoxime) (H2doen); L′=2,2′-bipyridyl (bpy) or 1,10-phenanthroline (phen); X=ClO4 or NO3), [Ni(dopn)Cu(bpy)(H2O)](ClO4)2, and [Ni(dopn)Ni(bpy)2](ClO4)2, have been prepared and characterized.
Dominique Luneau, Hiroki Oshio, Hisashi Okawa, Masayuki Koikawa, Sigeo Kida   +4 more
openaire   +1 more source

Recovery Process for Critical Metals: Selective Adsorption of Nickel(II) from Cobalt(II) at Acidic Condition and Elevated Temperature

Adsorption Science & Technology, 2023
Effective and sustainable separation processes for critical metals, especially for the physicochemically similar elements nickel and cobalt in battery recycling, are of great interest in the future.
Friederike Kriese, Stephan Lassen, Bernd Niemeyer   +2 more
doaj   +1 more source

Comparative metabolomic analysis reveals Ni(II) stress response mechanism of Comamonas testosteroni ZG2

Ecotoxicology and Environmental Safety, 2023
The focus on the toxicity of nickel (Ni(II)) in animal and human cells has increased recently. Ni(II) contamination hazards to animals and humans can be reduced by bioremediation methods.
Chunli Wang, Xiaotong Sun, Yuanhui Chen, Yu Zhang, Mingtang Li   +4 more
doaj   +1 more source

The Square Planar-Octahedral Equilibrium of Bismacrocyclic Ni(II)Ni(II) and Cu(II)Ni(II) Complexes with Polymethylene Bridges of Various Lengths [PDF]

Bulletin of the Chemical Society of Japan, 1990
Abstract Bismacrocyclic Ni(II)Ni(II) and Cu(II)Ni(II) complexes, i.e., 7,7′-polymethylenebis[2,12-dimethyl-3,7,11,17-tetraazabicyclo[1 1.3.1]heptadeca-1(17),2,11,13,15-pentaene]dinickel(II) perchlorates and 7,7′-polymethylenebis[2,12-dimethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-l(17),2,11,13,15-pentaene]copper(II)nickel(II ...
Katsura Mochizuki, Asako Iijima, Yumiko Endoh, Yoshihito Ikeda   +3 more
openaire   +1 more source

Highly effective removal of nickel ions from wastewater by calcium-iron layered double hydroxide

Frontiers in Chemistry, 2023
Water pollution due to heavy metals has become a universal environmental problem. Ni(II) is a common heavy metal ion in polluted wastewater, which has high toxicity and carcinogenicity.
Ning Li, Mingjie Yuan, Sheng Lu, Xiaoli Xiong, Zhigang Xie, Yongsheng Liu, Wei Guan   +6 more
doaj   +1 more source

Experimental isotopic shifts in Ni II and Fe II [PDF]

Monthly Notices of the Royal Astronomical Society, 1992
This work reports about measurements of isotope structure in Ni II and Fe II. We have used spectra from hollow-cathode lamps that have been recorded with the Fourier Transform Spectrometer at Kitt Peak National Observatory. Measurements of isotope shifts yield useful information about atomic and nuclear properties.
Maria Rosberg, Ulf Litzén, Sveneric Johansson   +2 more
openaire   +1 more source

DFT Investigation of the Effects of Coexisting Cations and Complexing Reagents on Ni(II) Adsorption by a Polyvinylidene Fluoride-Type Chelating Membrane Bearing Poly(Amino Phosphonic Acid) Groups

Metals, 2017
A polyvinylidene fluoride (PVDF)-type chelating membrane bearing poly(amino phosphonic acid) groups, denoted as ethylenediamine tetra(methylene phosphonic acid) (EDTMPA)-tetrabutyl orthotitanate (TBOT)/PVDF, was employed to remove Ni(II) from the aqueous
Xiuli Wang, Laizhou Song, Caili Tian, Jun He, Shuaijie Wang, Jinbo Wang, Chunyu Li   +6 more
doaj   +1 more source

Molecular and Electronic Structures of Macrocyclic Compounds Formed at Template Synthesis in the M(II)—Thiocarbohydrazide—Diacetyl Triple Systems: A Quantum-Chemical Analysis by DFT Methods

Molecules, 2023
Using density functional theory (DFT) B3PW91/TZVP, M06/TZVP, and OPBE/TZVP chemistry models and the Gaussian09 program, a quantum-chemical calculation of geometric and thermodynamic parameters of Ni(II), Cu(II), and Zn(II) macrotetracyclic chelates, with
Oleg V. Mikhailov, Denis V. Chachkov
doaj   +1 more source

Preparation and Antimicrobial Screeningof Cu (II), Ni (II), Zn (II) Cd (II) Complexes

E-Journal of Chemistry, 2006
The metal complexes of Ni(II), Cu(II), Zn(II) Cd(II) with organic ligands viz Hydrazine hydrate, 1,2-N,N'-Bisammonium thiocarbamoyl ethane and 1,4-N,N'-Bisammonium thiocarbamoyl benzene have been prepared.
R. M. Desai, M. K. Shah, V. H. Shah
doaj   +1 more source