FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3204697763> ?p ?o ?g. }

• W3204697763 endingPage "150653" @default.
• W3204697763 startingPage "150653" @default.
• W3204697763 abstract "The influence of ionic strength up to 3 mol kg-1 (background electrolytes NaCl or CaCl2) on U(VI) sorption onto montmorillonite was investigated as function of pHc in absence and presence of CO2. A multi-method approach combined batch sorption experiments with spectroscopic methods (time-resolved laser-induced fluorescence spectroscopy (TRLFS) and in situ attenuated total reflection Fourier-transform infrared spectroscopy (ATR FT-IR)). In the absence of atmospheric carbonate, U(VI) sorption was nearly 99% above pHc 6 in both NaCl and CaCl2 and no significant effect of ionic strength was found. At lower pH, cation exchange was strongly reduced with increasing ionic strength. In the presence of carbonate, U(VI) sorption was reduced above pHc 7.5 in NaCl and pHc 6 in CaCl2 system due to formation of aqueous UO2(CO3)x(2-2x) and Ca2UO2(CO3)3 complexes, respectively, as verified by TRLFS. A significant ionic strength effect was observed due to the formation of Ca2UO2(CO3)3(aq), which strongly decreases U(VI) sorption with increasing ionic strength. The joint analysis of determined sorption data together with literature data (giving a total of 213 experimental data points) allowed to derive a consistent set of surface complexation reactions and constants based on the 2SPNE SC/CE approach, yielding log K°≡SSOUO2+ = 2.42 ± 0.04, log K°≡SSOUO2OH = -4.49 ± 0.7, and log K°≡SSOUO2(OH)32- = -20.5 ± 0.4. Ternary uranyl carbonate surface complexes were not required to describe the data. With this reduced set of surface complexes, an improved robust sorption model was obtained covering a broad variety of geochemical settings over wide ranges of ionic strengths and groundwater compositions, which subsequently was validated by an independent original dataset. This model improves the understanding of U(VI) retention by clay minerals and enables now predictive modeling of U(VI) sorption processes in complex clay rich natural environments." @default.
• W3204697763 created "2021-10-11" @default.
• W3204697763 creator A5012928599 @default.
• W3204697763 creator A5015246619 @default.
• W3204697763 creator A5017704659 @default.
• W3204697763 creator A5023451827 @default.
• W3204697763 creator A5027249679 @default.
• W3204697763 creator A5040976657 @default.
• W3204697763 creator A5047160240 @default.
• W3204697763 creator A5048089623 @default.
• W3204697763 creator A5055975579 @default.
• W3204697763 creator A5063981539 @default.
• W3204697763 creator A5084618657 @default.
• W3204697763 date "2022-02-01" @default.
• W3204697763 modified "2023-10-17" @default.
• W3204697763 title "New insights into U(VI) sorption onto montmorillonite from batch sorption and spectroscopic studies at increased ionic strength" @default.
• W3204697763 cites W1914734473 @default.
• W3204697763 cites W1968819628 @default.
• W3204697763 cites W1972364256 @default.
• W3204697763 cites W1977685993 @default.
• W3204697763 cites W1977871054 @default.
• W3204697763 cites W1981317791 @default.
• W3204697763 cites W1982539309 @default.
• W3204697763 cites W1990250430 @default.
• W3204697763 cites W1993512184 @default.
• W3204697763 cites W1996229541 @default.
• W3204697763 cites W1997028754 @default.
• W3204697763 cites W1998468249 @default.
• W3204697763 cites W2001787269 @default.
• W3204697763 cites W2009392238 @default.
• W3204697763 cites W2009654532 @default.
• W3204697763 cites W2011447321 @default.
• W3204697763 cites W2013995343 @default.
• W3204697763 cites W2016355764 @default.
• W3204697763 cites W2021835016 @default.
• W3204697763 cites W2042510551 @default.
• W3204697763 cites W2042988424 @default.
• W3204697763 cites W2043430359 @default.
• W3204697763 cites W2046243922 @default.
• W3204697763 cites W2047419791 @default.
• W3204697763 cites W2047569266 @default.
• W3204697763 cites W2047849850 @default.
• W3204697763 cites W2051690224 @default.
• W3204697763 cites W2052606915 @default.
• W3204697763 cites W2052860624 @default.
• W3204697763 cites W2054351261 @default.
• W3204697763 cites W2055239140 @default.
• W3204697763 cites W2056928397 @default.
• W3204697763 cites W2058171788 @default.
• W3204697763 cites W2058267209 @default.
• W3204697763 cites W2063074896 @default.
• W3204697763 cites W2064323133 @default.
• W3204697763 cites W2069630487 @default.
• W3204697763 cites W2070996935 @default.
• W3204697763 cites W2071704940 @default.
• W3204697763 cites W2080821126 @default.
• W3204697763 cites W2081614421 @default.
• W3204697763 cites W2082147434 @default.
• W3204697763 cites W2082559038 @default.
• W3204697763 cites W2083658590 @default.
• W3204697763 cites W2085690967 @default.
• W3204697763 cites W2091196810 @default.
• W3204697763 cites W2091410624 @default.
• W3204697763 cites W2092414735 @default.
• W3204697763 cites W2103648693 @default.
• W3204697763 cites W2132252129 @default.
• W3204697763 cites W2135718834 @default.
• W3204697763 cites W2136343400 @default.
• W3204697763 cites W2219843868 @default.
• W3204697763 cites W2258803568 @default.
• W3204697763 cites W2327636566 @default.
• W3204697763 cites W2335404558 @default.
• W3204697763 cites W2339648743 @default.
• W3204697763 cites W2470096679 @default.
• W3204697763 cites W2477333070 @default.
• W3204697763 cites W2519229696 @default.
• W3204697763 cites W2531126035 @default.
• W3204697763 cites W2538671179 @default.
• W3204697763 cites W2564857245 @default.
• W3204697763 cites W2748969212 @default.
• W3204697763 cites W2763212091 @default.
• W3204697763 cites W2809394071 @default.
• W3204697763 cites W2889865315 @default.
• W3204697763 cites W2900621066 @default.
• W3204697763 cites W2901878325 @default.
• W3204697763 cites W2936936932 @default.
• W3204697763 cites W2978874782 @default.
• W3204697763 cites W2987998715 @default.
• W3204697763 cites W2994294902 @default.
• W3204697763 cites W3004677083 @default.
• W3204697763 cites W3022447397 @default.
• W3204697763 cites W3087823458 @default.
• W3204697763 cites W3095908380 @default.
• W3204697763 cites W3103138321 @default.
• W3204697763 cites W3112041503 @default.
• W3204697763 cites W3119229008 @default.
• W3204697763 doi "https://doi.org/10.1016/j.scitotenv.2021.150653" @default.
• W3204697763 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34597569" @default.

• next