Dithiocarbamate-modified cellulose-based sorbents with high storage stability for selective removal of arsenite and hazardous heavy metals
Futo Morita, Keisuke Nakakubo, Koki Yunoshita, Masaru Endo, Foni B. Biswas, Tatsuya Nishimura, Asami S. Mashio, Hiroshi Hasegawa, Tsuyoshi Taniguchi, Katsuhiro Maeda
Abstract
A series of cellulose derivatives bearing dialkyl dithiocarbamate (DTC) groups were synthesized. Their ability of sorption of arsenite (As(iii)) and heavy metals and their storage stability in the solid state were investigated. Among them, DTC-modified cellulose derived from l-proline showed the highest sorption capacity for As(iii) and heavy metals to selectively remove them from aqueous media. It also showed exellent storage stability in air at 40 °C.
Topics & Concepts
SorptionDithiocarbamateCelluloseChemistryArseniteHazardous wasteAqueous solutionHeavy metalsNuclear chemistryOrganic chemistryArsenicEnvironmental chemistryWaste managementAdsorptionEngineeringArsenic contamination and mitigationAdsorption and biosorption for pollutant removalAdvanced Cellulose Research Studies