Matches in SemOpenAlex for { <https://semopenalex.org/work/W2912590164> ?p ?o ?g. }
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- W2912590164 abstract "Abstract High-molecular alginates were extracted from Djiboutian brown seaweeds, Sargassum sp. ( S ) and Turbinaria ( T ) and isolated as sodium salts in 31.0 and 42.7% yield by weight. 1 H NMR analysis of the uronic acid block-structure indicates mannuronic/guluronic M/G ratios of 0.49 and 3.0 for the alginates extracts, respectively. The resulting alginates were deposited onto native Aerosil 200 silica, amine-functionalized and carboxyl-functionalized silica particles to enhance the mechanical strength providing Alg.(T/S)+SiO 2 ) Alg.(T/S)+SiO 2 NH 2 ) and Alg.(T)+SiO 2 CO 2 H) composites. Taking Pb(II) as examples for toxic heavy metal ions, the effects of the pH, adsorption kinetics, and isotherms have been studied systematically. The best uptake achieved was 585 mg Pb 2+ ion/g using Alg.S+SiO 2 NH 2 . Furthermore, the Pb(II) ions were successfully desorbed in several cycles from Alg.T+SiO 2 using 0.5 M hydrochloric acid. Therefore, Alg.T+SiO 2 may be considered as a low-cost biosorbent that quickly adsorbs and easily desorbs analyte lead ions. A comparison of the adsorption capacity of our biopolymer-coated particles with that of other adsorbents reported in the literature reveals that our materials are among the best performing for the adsorption of Pb(II)." @default.
- W2912590164 created "2019-02-21" @default.
- W2912590164 creator A5002795641 @default.
- W2912590164 creator A5009635522 @default.
- W2912590164 creator A5013548993 @default.
- W2912590164 creator A5014531481 @default.
- W2912590164 creator A5064434176 @default.
- W2912590164 creator A5074305976 @default.
- W2912590164 date "2019-02-11" @default.
- W2912590164 modified "2023-10-18" @default.
- W2912590164 title "Biosorption of Pb(II) ions from aqueous solution using alginates extracted from Djiboutian seaweeds and deposited on silica particles" @default.
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