FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2073235013> ?p ?o ?g. }

• W2073235013 endingPage "55" @default.
• W2073235013 startingPage "47" @default.
• W2073235013 abstract "Humic substances (HS) are macromolecular products derived from a physical, chemical, and microbiological process called “humification.” These substances play an important role in the mobility and bioavailability of nutrients and contaminants in the environment. Adsorption isotherms provide a macroscopic view of the retention phenomena. However, complementary techniques are needed in order to study the retention mechanism. The application of the classical models and some modern ones, based on humic substances chemistry, do not accurately describe these adsorption data. The aim of this paper is to model isotherms and combine adsorption data with spectroscopy and microscopy techniques to study the Cu(II) retention on a HS. The adsorption isotherms shape varies significantly with the solution pH from L-type (pH 2–6) to S-type (pH 8). FTIR shows that, when pH is 2 the retention of Cu(II), as [Cu(H2O)6]2+, is the preferred retention mechanism. The quantity of Cu(II) retained as [Cu(OH)(H2O)6]+ rises, as pH increases. At pH 4, Cu(II) begins to precipitate, which is the preferred mechanism at pH 8.02. The presence of HS has a great influence on the precipitation process of Cu(II), giving rise to amorphous precipitates. As it is shown by SEM-XRF, Cu(II) distributes heterogeneously on HS surface and accumulates on the humic phases. The presence of different anions (chloride and nitrate) slightly modifies the HS behavior as cation exchanger. When Cl− ions are present, part of the Cu(II) form [CuCl4]2−, which is stable in solution due to its negative charge; when the anion present is NO3− the formed complex, [CuNO3]+, is retained on the HS." @default.
• W2073235013 created "2016-06-24" @default.
• W2073235013 creator A5068256725 @default.
• W2073235013 creator A5076287357 @default.
• W2073235013 creator A5077982177 @default.
• W2073235013 date "2004-02-01" @default.
• W2073235013 modified "2023-10-17" @default.
• W2073235013 title "Cu(II) retention on a humic substance" @default.
• W2073235013 cites W1758687791 @default.
• W2073235013 cites W1964705827 @default.
• W2073235013 cites W1982305208 @default.
• W2073235013 cites W1984905352 @default.
• W2073235013 cites W1987224580 @default.
• W2073235013 cites W1987353428 @default.
• W2073235013 cites W1992054735 @default.
• W2073235013 cites W2009033334 @default.
• W2073235013 cites W2025766280 @default.
• W2073235013 cites W2032772495 @default.
• W2073235013 cites W2036978741 @default.
• W2073235013 cites W2055122915 @default.
• W2073235013 cites W2055378846 @default.
• W2073235013 cites W2063962695 @default.
• W2073235013 cites W2072945250 @default.
• W2073235013 cites W2076675967 @default.
• W2073235013 cites W2083901439 @default.
• W2073235013 cites W2085453566 @default.
• W2073235013 cites W2091047446 @default.
• W2073235013 cites W2092242549 @default.
• W2073235013 cites W2107780206 @default.
• W2073235013 cites W2107919493 @default.
• W2073235013 cites W2115767048 @default.
• W2073235013 cites W2118214573 @default.
• W2073235013 cites W2513474091 @default.
• W2073235013 cites W2951151718 @default.
• W2073235013 cites W4233442403 @default.
• W2073235013 doi "https://doi.org/10.1016/j.jcis.2003.08.068" @default.
• W2073235013 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/14693134" @default.
• W2073235013 hasPublicationYear "2004" @default.
• W2073235013 type Work @default.
• W2073235013 sameAs 2073235013 @default.
• W2073235013 citedByCount "55" @default.
• W2073235013 countsByYear W20732350132012 @default.
• W2073235013 countsByYear W20732350132013 @default.
• W2073235013 countsByYear W20732350132014 @default.
• W2073235013 countsByYear W20732350132015 @default.
• W2073235013 countsByYear W20732350132016 @default.
• W2073235013 countsByYear W20732350132017 @default.
• W2073235013 countsByYear W20732350132018 @default.
• W2073235013 countsByYear W20732350132019 @default.
• W2073235013 countsByYear W20732350132020 @default.
• W2073235013 countsByYear W20732350132022 @default.
• W2073235013 countsByYear W20732350132023 @default.
• W2073235013 crossrefType "journal-article" @default.
• W2073235013 hasAuthorship W2073235013A5068256725 @default.
• W2073235013 hasAuthorship W2073235013A5076287357 @default.
• W2073235013 hasAuthorship W2073235013A5077982177 @default.
• W2073235013 hasConcept C107054158 @default.
• W2073235013 hasConcept C117760992 @default.
• W2073235013 hasConcept C121332964 @default.
• W2073235013 hasConcept C145148216 @default.
• W2073235013 hasConcept C147789679 @default.
• W2073235013 hasConcept C150394285 @default.
• W2073235013 hasConcept C153294291 @default.
• W2073235013 hasConcept C178790620 @default.
• W2073235013 hasConcept C179104552 @default.
• W2073235013 hasConcept C181389837 @default.
• W2073235013 hasConcept C184651966 @default.
• W2073235013 hasConcept C185592680 @default.
• W2073235013 hasConcept C56052488 @default.
• W2073235013 hasConcept C60644358 @default.
• W2073235013 hasConcept C86803240 @default.
• W2073235013 hasConceptScore W2073235013C107054158 @default.
• W2073235013 hasConceptScore W2073235013C117760992 @default.
• W2073235013 hasConceptScore W2073235013C121332964 @default.
• W2073235013 hasConceptScore W2073235013C145148216 @default.
• W2073235013 hasConceptScore W2073235013C147789679 @default.
• W2073235013 hasConceptScore W2073235013C150394285 @default.
• W2073235013 hasConceptScore W2073235013C153294291 @default.
• W2073235013 hasConceptScore W2073235013C178790620 @default.
• W2073235013 hasConceptScore W2073235013C179104552 @default.
• W2073235013 hasConceptScore W2073235013C181389837 @default.
• W2073235013 hasConceptScore W2073235013C184651966 @default.
• W2073235013 hasConceptScore W2073235013C185592680 @default.
• W2073235013 hasConceptScore W2073235013C56052488 @default.
• W2073235013 hasConceptScore W2073235013C60644358 @default.
• W2073235013 hasConceptScore W2073235013C86803240 @default.
• W2073235013 hasIssue "1" @default.
• W2073235013 hasLocation W20732350131 @default.
• W2073235013 hasLocation W20732350132 @default.
• W2073235013 hasOpenAccess W2073235013 @default.
• W2073235013 hasPrimaryLocation W20732350131 @default.
• W2073235013 hasRelatedWork W1505739641 @default.
• W2073235013 hasRelatedWork W2027491976 @default.
• W2073235013 hasRelatedWork W2044251933 @default.
• W2073235013 hasRelatedWork W2046280088 @default.
• W2073235013 hasRelatedWork W2073177056 @default.
• W2073235013 hasRelatedWork W2099575842 @default.
• W2073235013 hasRelatedWork W2110192055 @default.

• next