Results 161 to 170 of about 280,109 (208)
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Heavy metal contamination in ion implantation
AIP Conference Proceedings, 1997Reduction of metallic contamination during ion implantation is becoming increasingly critical for device performance. Modern implanters are being developed with novel beamline coating materials and optics to keep sputtered contamination to a minimum. However chemical processes occur in the implanter which lead to contaminants being deposited onto the ...
Zhiyong Zhao +2 more
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Electrochemical microfluidics techniques for heavy metal ion detection
The Analyst, 2018Heavy metals refer to metals with a density above 5 × 103 kg m−3, such as lead (Pb), cadmium (Cd), arsenic (As), and mercury (Hg).
Su Li +6 more
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Functionalized metal–organic frameworks for heavy metal ion removal from water
Nanoscale, 2023Water-stable metal–organic frameworks (MOFs): adsorbents to remove heavy metal ions with excellent stability. MOFs from different functionalization strategies enhance the removal performance of MOF adsorbents.
Iris Tsz Yan Lam +3 more
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Competitive Sorption of Heavy Metal Ions by Soils
Environmental Engineering Science, 2003An experimental study is presented on heavy metal pollution of soils. In particular, Pb2+, Zn2+, Cd2+ are considered as most representing the pollution of a Sardinian (Italy) area, where important mining activities connected to the extraction of blende and galena have been carried out in the past.
Polcaro AM +4 more
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The Adsorption of Heavy Metal Ions
Advances in Science and TechnologyThe aim of the study is to research of the adsorption properties of heavy metal ions Pb2+, Cd2+ and Ni2+ from industrial wastewater. For the adsorption of heavy metal ions, natural clinoptilolite was used, which belongs to the Ai-Dag deposit of the Tovuz-Kazakh region of Azerbaijan.
Fakhraddin Yusubov +4 more
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Mechanisms of cell activation by heavy metal ions
Journal of Biomedical Materials Research, 1998Heavy metal ions can be released by corroding metallic implants into the surrounding tissue. When they enter blood vessels some of them are carried by proteins like albumin and can be taken up by endothelial cells lining the vessels. To study their involvement in the inflammatory response we investigated heavy metal ion induced effects in cultured ...
M, Wagner +3 more
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Ion Exchange Extraction of Heavy Metal Ions from Wastewater
Separation Science and Technology, 2005Abstract In this study, ion‐exchange resins of the cation exchanger universal (KU)‐2 type with functional sulfate groups, a carboxyl‐containing cation exchanger of a carboxyl containing cationite (KB) type, and polyampholyte amphoteric carboxyl containing ion exchanger (ANKB)‐35 were studied for Ni2+ and Cu2+ ion extraction from water solutions.
Svetlana Verbych +3 more
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Selective Optode Membranes for Heavy Metal Ion Detection.
1998Optode membranes for Lead(II) based on an ion-exchange mechanism and neutral ionophores show that the calix[4]arene ionophores developed for CHEMFETS can be used in optical sensing schemes. To achieve pH independent sensor response, chromoionophores have been developed based on these neutral ionophores, which show a optical response to the complexation
van der Veen, Niels J. +3 more
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Specific heavy metal ion recovery with ion‐imprinted cryogels
Journal of Applied Polymer Science, 2015ABSTRACTIn this study, the functional monomers, N‐methacryloyl‐l‐aspartic acid and N‐methacryloyl‐l‐cysteine were synthesized through a reaction between appropriate amino acids and methacryloyl chloride. Then, Pb(II) or Cd(II) ion‐imprinted 2‐hydroxyethyl methacrylate based cryogels were prepared by free radical polymerization method under partially ...
Mitra Jalilzadeh +3 more
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The effective ion-ion interaction of heavy alkali metals
Solid State Communications, 1982Abstract The effective ion-ion interaction for the heavy alkali metals is calculated by a full non-local model potential, including exchange and correlation in the screening according to Vashishta and Singwi and in the RPA. The inclusion of the s - d hybridization effects merely following Harrison's theory for transition metals turns out to be ...
F. Bonsignori, A. Magnaterra
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