Results 281 to 290 of about 375,082 (339)

Interfacial interactions between collected nylon microplastics and three divalent metal ions (Cu(II), Ni(II), Zn(II)) in aqueous solutions.

Journal of Hazardous Materials, 2020
In water environments, nylon microplastics (MPs) and heavy metals are two kinds of common pollutants. This study investigated the adsorption of three divalent metals (Cu(II), Ni(II), Zn(II)) onto collected nylon MPs as function of contact time ...
Shuai Tang, Lujian Lin, Xuesong Wang, Anqi Yu, Xuan Sun   +4 more
semanticscholar   +1 more source

EXTRACTION OF HEAVY METAL IONS FROM AQUEOUS SOLUTIONS

2020
In this work, model cobalt aqueous solutions were investigated using anionic surfactants and isoamyl alcohol as the organic phase. The regularities of solvent sublation of Co2 + ions from aqueous solutions are investigated and the following rational conditions of the purification process are revealed: surfactant sodium dodecyl sulfate; pH 10-10.5; the ...
Obushenko, T., Tolstopalova, N., Chyrieva, M.   +2 more
openaire   +1 more source

Removal of Heavy Metal Ions by Photoelectrodeposition in Aqueous Solutions

ECS Meeting Abstracts, 2014
In order to remove hazardous heavy metal ions dissolved in an aqueous environment, the photoelectrodeposition effect on the removal of Pb(II), Cu(II), Cd(II), and Zn(II) ions has been investigated for the (CeO2)1-X(Ln2O3)X (Ln = La, Sm, Gd) photocatalyst oxide particles combined with fine α-FeOOH particles.
Kazunori Sato, Yuhei Hoshi, Jirachaya Ayawanna, Teoh WahTzu, Nobuo Saito, Yasunobu Inoue, Hiroshi Nishiyama   +6 more
openaire   +1 more source

Effective removal of heavy metal ions Cd2+, Zn2+, Pb2+, Cu2+ from aqueous solution by polymer-modified magnetic nanoparticles

Journal of Hazardous Materials, 2012
Fei Ge, Mengmeng Li, Hui Ye, Baoxiang Zhao   +3 more
exaly   +2 more sources

Complexation of polymethacrylopiperidide with transition metal ions in aqueous solution

European Polymer Journal, 1984
Abstract The interactions of polymethacrylopiperidide with Cu2+, Ni2+, Co2+ and Fe3+ ions have been investigated by potentiometric and conductometric titration, ESR and u.v. spectroscopy, viscometry and sedimentation. The average number of ligands coordinating with the central metal ions and the stability constants of polymeric metal complexes were ...
E.A. Bekturov, S.E. Kudaibergenov, G.M. Zhaimina   +2 more
openaire   +1 more source

Behavior of Some Transition-Metal Ions in Aqueous Solution

The Chemical Educator, 2003
In recent decades, qualitative analysis in the curriculum has declined due to the expansion of instrumental analytical chemistry; however, it should not be forgotten that the principles of qualitative analysis are the basis of the development of several instrumental analytical techniques.
M. Valme García-Moreno, Dolores Bellido-Milla, Remedios Castro   +2 more
openaire   +1 more source

The formation of weak complexes by metal ions in aqueous solutions

Russian Chemical Reviews, 1991
The modern approaches to the determination of the composition and the stepwise stability constants of weak metal complexes (Kn = 0.1–5.0) with ionic and molecular ligands in aqueous solutions are discussed. The difficulties in the unambiguous separation of the effects of the medium from those of the short-range specific interaction, described by ...
V E Mironov, V A Fedorov, I D Isaev
openaire   +1 more source

Metal ions biosorption from dilute aqueous solution

International Journal of Environment and Pollution, 2008
Biosorption, using non-living biomass (mostly suspended), is briefly reviewed in this paper as applied to toxic metal ions removal, with particular focus on the kinetics and engineering considerations of the process. Several diverse kinetic models were successful in fitting the experimental data.
K.A. Matis, A.I. Zouboulis, N.K. Lazaridis, Th.D. Karapantsios   +3 more
openaire   +1 more source

The interaction of piroxicam with some metal ions in aqueous solution

Thermochimica Acta, 1989
Abstract The interaction of various metal ions, such as Co(II), Cu(II), La(III), Ce(III), Y(III) and Al(III), with piroxicam in aqueous solution has been studied by spectroscopic methods. The interaction of the metal ions with HMBDC (4-hydroxy-2-methyl-1,2λ-benzothiazine-1,1-dioxide-3-methyl-carboxylate) has also been studied for comparison.
Sock Sung Yun, Hyoung Nae Choi, Jun Gill Kang, Minjoong Yoon, Sung Nak Choi   +4 more
openaire   +1 more source

Pyridine-hydrazone-based charge-transfer probe for detecting Cu2+ and Co2+ ions in aqueous solutions.

Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy
In the field of environmental monitoring, there remain considerable challenges regarding the development of selective chemosensors with high sensitivity for detecting transition metal ions in aqueous media. In this study, we prepared and investigated 1,3-
Jieun Park, Dong In Moon, Bulle Shah, Narinder Singh, Doo Ok Jang   +4 more
semanticscholar   +1 more source