Novel silica based adsorbent layer-by-layer modified with polyhexamethylene guanidine and Arsenazo reagents for solid-phase extraction of lanthanides from lignites and products of their processing
URI (for links/citations):
https://www.tandfonline.com/doi/full/10.1080/01496395.2020.1785500https://elib.sfu-kras.ru/handle/2311/142639
Date:
2020-06Journal Name:
Separation Science and TechnologyJournal Quartile in Scopus:
Q2Journal Quartile in Web of Science:
Q3Bibliographic Citation:
Vladimir, Losev. Novel silica based adsorbent layer-by-layer modified with polyhexamethylene guanidine and Arsenazo reagents for solid-phase extraction of lanthanides from lignites and products of their processing [Текст] / Losev Vladimir, Buyko Olga, Metelitsa Sergey, Borodina Elena, Kuzmin Nikolay, Shimanskiy Aleksandr // Separation Science and Technology. — 2020.Abstract:
Novel silica-based adsorption materials layer-by-layer modified with polyhexamethylene guanidine and Arsenazo I or Arsenazo III have been proposed for solid-phase extraction of rare earth elements (REE). Silica, modified with Arsenazo I, quantitatively extracted REE at pH 5.5 − 7.0, and silica, modified with Arsenazo III, at pH 2.0–6.0 with distribution coefficients of 2.9 · 103–4.6 · 104 cm3 g−1. The adsorption capacity for REE was 1.25–2.85 mg g−1. Silica, layer-by-layer modified with polyhexamethylene guanidine and Arsenazo III, was used for removal of REE from solutions after digestion of lignites and ashes after their burning.