Sorption And Physicochemical Properties of A Phosphorylated Mercerised Cotton Cellulose

Abstract

A process of a mercerised cotton cellulose sample phosphorylation has been investigated. After oxidation a phosphorus content was determined by spectrophotometric analysis and it was in a range of 0.179 to 0.950 mmol g–1. A significant decrease in the tensile strength of the sample was found upon an increase of phosphoric acid concentration in a phosphorylating solution. Phosphorylated mercerized fabric contents more phosphorous as unmercerized fabric in 3 times. The sorption properties of phosphorylated cotton cellulose in aqueous solution containing Cu2+ were characterized. The maximum of static exchange capacity was found to be 1.48 ± 0.11 mmol g–1 for phosphorylated cotton with content 0.898 ± 0.090 mmol g–1 of phosphorus. The sorption of Cu2+ by single phosphorus-containing group occurs for samples with not exceeding 0.80 mmol g–1 of phosphorus. The preliminary studies of uranium(VI) micro quantities of radionuclides 241Am, 233U and 239Pu sorption from aqueous solution with phosphorylated textile demonstrated the high efficiency.