Improved performance of a cellulose-based anion exchanger with tertiary amine functionality for the adsorption of chromium(VI) from aqueous solutions

Removal of hexavalent chromium by new quaternized crosslinked poly(4-vinylpyridines)

“…The selectivity of the commercial polystyrene or polyacrylic based strong or weak base anion exchangers for chromate anions was studied in the pH range of 3-8 [30][31][32][33][34][35][36][37][38][39][40][41]. The synthesis of the anion exchangers with higher affinity with chromate than the commercially available anion exchangers at neutral to alkaline pH in the presence of other competing anions, namely, sulfate, chloride, bicarbonate, and nitrate was reported [42].…”

Evaluation of Iron(III)-Coordinated Amino-Functionalized Poly(Glycidyl Methacrylate)-Grafted Cellulose for Arsenic(V) Adsorption from Aqueous Solutions

“…1, 8.0, 42.5, and 20.8 mg/g for adsorption onto layered double hydroxide (Li et al 2006), conditioned layered double hydroxides (Megha et al 2009), manganese oxide-coated-alumina, and granular-activated alumina (Shihabudheen et al 2009), respectively. The Sips model exponent value indicates that the adsorbent surface is heterogeneous in nature, and this surface heterogeneity is another factor favoring adsorption of As(V) on Fe(III)-AM-PGMACell (Anirudhan et al 2009). …”

“…The contents were heated in a water bath at 70-80°C with continuous stirring for 3 h. The sensitive component for polymer grafting might be the methyl hydroxyl groups of the Cell unit, Cell-CH 2 OH, present in Cell. The polymer-grafted Cell was obtained as a heavy white precipitate which was then filtered, washed repeatedly with methanol to remove homopolymer until the weight of the grafted Cell was constant (Anirudhan et al 2009). It was then dried at 70°C.…”

Determining the microelement composition of poppy seeds using solid­phase spectrophotometry method

“…Paper [15] describes optimization of the properties of anionite, based on cellulose, for the sorption of Cr(VI) from aqueous solutions.…”