4.7 Article

Mechanistic study of Hg(II) interaction with three different α-aminophosphonate adsorbents: Insights from batch experiments and theoretical calculations

Journal

CHEMOSPHERE
Volume 304, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.135253

Keywords

?-aminophosphonate; Hg(II) ions; Selective sorption

Funding

  1. King Khalid University through Research Center for Advanced Materials Science (RCAMS) [RCAMS/KKU//0010/21]

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Efficient and potential chelating alpha-aminophosphonate based sorbents were synthesized and characterized in this study. The synthesized sorbents showed good adsorption capacity for Hg(II) in aqueous solution.
Herein, efficient and potential chelating alpha-aminophosphonate based sorbents (AP-) derived from three different amine origins (aniline/anthranilic acid/O-phenylenediamine) to form AP-H, carboxylated and aminated enhanced aminophosphonate as AP-H, AP-COOH, and AP-NH2 were synthesized via a facile method. The structure of the synthesized sorbents was elucidated using different techniques; elemental analysis (CHNP/O), FT-IR, NMR (1H-, 13C and 31P NMR), TGA and BET. The fabricated sorbents were exploited for Hg(II) removal from aqueous solution via sorption properties. Isotherm fitted by Langmuir equation: the maximum sorption

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