FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2103297054> ?p ?o ?g. }

• W2103297054 endingPage "3064" @default.
• W2103297054 startingPage "3051" @default.
• W2103297054 abstract "The interactions between each of the metal ions copper(II), cadmium(II), and lead(II) in aqueous solution and the surfaces of the minerals muscovite, biotite, and perthitic feldspar have been studied using batch sorption experiments and X-ray photoelectron (XPS) and X-ray absorption (XAS) spectroscopies. The purpose of the work has been to establish the extent of removal from solution of these metal ions by interaction with the mineral surfaces and the mechanisms involved (whether ion exchange, precipitation, or adsorption). The experiments utilised both powdered samples and flat polished or cleaved surfaces of natural minerals which were characterised compositionally and structurally by electron probe microanalysis and X-ray diffraction. Reaction solutions contained Cu (II) , Cd (II) , or Pb (II) in a background electrolyte of NaNO3 (0.1 or 0.01 M) at a pH of 5.4 ± 0.2 with a wide range of initial concentrations. The extent of uptake of each of the metals by a particular mineral substrate was measured by analysis of the liquid portion separated by centrifugation after a controlled period of exposure (solution analyses were performed by atomic absorption spectroscopy or by inductively coupled plasma mass spectroscopy as appropriate). The data obtained were used to plot sorption isotherms for the various metal ions and substrates showing the dependence of uptake on initial concentration of metal in solution and background electrolyte concentration. Studies of the reacted mineral surfaces using XPS were used to identify the chemical speciation and bonding environment of Cu, Cd, and Pb present at the surface and to assess surface coverage in planar surface samples and whether significant infiltration of the metal cation into the mineral surface had occurred. Parallel studies using XAS (in particular Extended X-ray Absorption Fine Structure Spectroscopy-EXAFS) were employed to determine the local environments of Cu, Cd, and Pb at the surface of powdered mineral samples. Planar surfaces of muscovite, biotite, and perthitic feldspar exposed to Cu(II) and of muscovite exposed to Cd(II) were also studied using Reflection Extended X-ray Absorption Fine Structure (REFLEXAFS) spectroscopy. The results show that muscovite, biotite, and perthitic feldspar have surfaces that can strongly interact with (and remove) particularly Cu (II) and Pb (II) in such mildly acidic aqueous solutions. Biotite also strongly interacts with Cd(II) in solution. Generally biotite provides the most reactive mineral surface followed by muscovite, with perthitic feldspar being the least reactive. Of the possible mechanisms for removal of metals under the conditions of these experiments, precipitation was not observed, but three other mechanisms (inner-sphere complexation, outer-sphere complexation, and ion exchange) were all observed. The inner-sphere complexation and ion exchange mechanisms often take place in combination: however, Pb (II) forms no outer-sphere complexes on the surfaces of these minerals, and Cd (II) forms only outer-sphere complexes with perthitic feldspar and muscovite. Cu(II) in solution promotes the release of K+ from the surface region of muscovite and, particularly, biotite, and subsequent uptake of Cu (II) by ion exchange. These findings have important environmental implications and show the significant role that major rock-forming aluminosilicates may play in the geochemical cycling of Cu(II), Cd(II), and Pb(II)." @default.
• W2103297054 created "2016-06-24" @default.
• W2103297054 creator A5037638514 @default.
• W2103297054 creator A5045024210 @default.
• W2103297054 creator A5058251759 @default.
• W2103297054 creator A5064393931 @default.
• W2103297054 creator A5091456022 @default.
• W2103297054 date "1997-08-01" @default.
• W2103297054 modified "2023-09-25" @default.
• W2103297054 title "Experimental studies of the interaction of aqueous metal cations with mineral substrates: Lead, cadmium, and copper with perthitic feldspar, muscovite, and biotite" @default.
• W2103297054 cites W1037763783 @default.
• W2103297054 cites W1531966272 @default.
• W2103297054 cites W1975035141 @default.
• W2103297054 cites W1980615022 @default.
• W2103297054 cites W1981779974 @default.
• W2103297054 cites W1986651790 @default.
• W2103297054 cites W1988080796 @default.
• W2103297054 cites W1989137202 @default.
• W2103297054 cites W1992443642 @default.
• W2103297054 cites W1994722745 @default.
• W2103297054 cites W1996082592 @default.
• W2103297054 cites W2004239068 @default.
• W2103297054 cites W2011681264 @default.
• W2103297054 cites W2019526562 @default.
• W2103297054 cites W2029077939 @default.
• W2103297054 cites W2029251136 @default.
• W2103297054 cites W2031279466 @default.
• W2103297054 cites W2052999854 @default.
• W2103297054 cites W2058313901 @default.
• W2103297054 cites W2060373561 @default.
• W2103297054 cites W2060797799 @default.
• W2103297054 cites W2063849751 @default.
• W2103297054 cites W2063994607 @default.
• W2103297054 cites W2075573383 @default.
• W2103297054 cites W2081563476 @default.
• W2103297054 cites W2082188780 @default.
• W2103297054 cites W2090145419 @default.
• W2103297054 cites W2119894260 @default.
• W2103297054 cites W2134692642 @default.
• W2103297054 cites W2145373320 @default.
• W2103297054 cites W2153967652 @default.
• W2103297054 cites W2154581019 @default.
• W2103297054 cites W2165598292 @default.
• W2103297054 cites W2167674170 @default.
• W2103297054 cites W2301872621 @default.
• W2103297054 doi "https://doi.org/10.1016/s0016-7037(97)00117-8" @default.
• W2103297054 hasPublicationYear "1997" @default.
• W2103297054 type Work @default.
• W2103297054 sameAs 2103297054 @default.
• W2103297054 citedByCount "79" @default.
• W2103297054 countsByYear W21032970542012 @default.
• W2103297054 countsByYear W21032970542013 @default.
• W2103297054 countsByYear W21032970542014 @default.
• W2103297054 countsByYear W21032970542015 @default.
• W2103297054 countsByYear W21032970542017 @default.
• W2103297054 countsByYear W21032970542018 @default.
• W2103297054 countsByYear W21032970542019 @default.
• W2103297054 countsByYear W21032970542020 @default.
• W2103297054 countsByYear W21032970542021 @default.
• W2103297054 countsByYear W21032970542023 @default.
• W2103297054 crossrefType "journal-article" @default.
• W2103297054 hasAuthorship W2103297054A5037638514 @default.
• W2103297054 hasAuthorship W2103297054A5045024210 @default.
• W2103297054 hasAuthorship W2103297054A5058251759 @default.
• W2103297054 hasAuthorship W2103297054A5064393931 @default.
• W2103297054 hasAuthorship W2103297054A5091456022 @default.
• W2103297054 hasConcept C107872376 @default.
• W2103297054 hasConcept C113196181 @default.
• W2103297054 hasConcept C127413603 @default.
• W2103297054 hasConcept C147789679 @default.
• W2103297054 hasConcept C150394285 @default.
• W2103297054 hasConcept C175708663 @default.
• W2103297054 hasConcept C178790620 @default.
• W2103297054 hasConcept C179104552 @default.
• W2103297054 hasConcept C184651966 @default.
• W2103297054 hasConcept C185592680 @default.
• W2103297054 hasConcept C191897082 @default.
• W2103297054 hasConcept C192562407 @default.
• W2103297054 hasConcept C2776432453 @default.
• W2103297054 hasConcept C2776581184 @default.
• W2103297054 hasConcept C2779870107 @default.
• W2103297054 hasConcept C42360764 @default.
• W2103297054 hasConcept C544153396 @default.
• W2103297054 hasConcept C544657597 @default.
• W2103297054 hasConcept C544778455 @default.
• W2103297054 hasConcept C58445606 @default.
• W2103297054 hasConceptScore W2103297054C107872376 @default.
• W2103297054 hasConceptScore W2103297054C113196181 @default.
• W2103297054 hasConceptScore W2103297054C127413603 @default.
• W2103297054 hasConceptScore W2103297054C147789679 @default.
• W2103297054 hasConceptScore W2103297054C150394285 @default.
• W2103297054 hasConceptScore W2103297054C175708663 @default.
• W2103297054 hasConceptScore W2103297054C178790620 @default.
• W2103297054 hasConceptScore W2103297054C179104552 @default.
• W2103297054 hasConceptScore W2103297054C184651966 @default.
• W2103297054 hasConceptScore W2103297054C185592680 @default.
• W2103297054 hasConceptScore W2103297054C191897082 @default.
• W2103297054 hasConceptScore W2103297054C192562407 @default.

• next