Solovov Roman, Perevoznikova Anfisa, Seliverstov Alexander, Shapagin Alexey, Fedoseev Alexandr, Milyutin Vitaly, Ershov Boris
Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, 40 Obruchev Street, 117342 Moscow, Russia.
Polymers (Basel). 2021 Oct 30;13(21):3756. doi: 10.3390/polym13213756.
A process of phosphorylation for a mercerized cotton kersey fabric was investigated. After wet oxidation, the phosphorus content in each sample was determined by spectrophotometric analysis. The range was 0.179 to 0.950 mmol g. A significant decrease in the tensile strength of samples resulted from an increase of phosphoric acid concentration in the phosphorylating solution. The mercerization has a positive impact on the process of phosphorylation, as the phosphorus content was found to be three times higher in the samples that underwent mercerization. The sorption properties of phosphorylated cotton fabric were studied using the Cu sorption process as a reference. The value of the static exchange capacity for the phosphorylated fabric was determined to reach its maximum when the concentration of the HPO in the phosphorylating solution was 1.40 M, and was found to be 1.48 ± 0.11 mmol g with the phosphorus content equal to 0.898 ± 0.090 mmol g. The sorption of Cu by a single phosphorus-containing group occurred for samples with phosphorus content not exceeding 0.80 mmol g. The preliminary studies of micro-quantities of Am, U, and Pu radionuclide sorption from aqueous solutions with phosphorylated textile demonstrated the high efficiency.
研究了丝光棉针织织物的磷酸化过程。湿氧化后，通过分光光度分析测定每个样品中的磷含量。范围为0.179至0.950 mmol/g。磷酸化溶液中磷酸浓度的增加导致样品的拉伸强度显著降低。丝光处理对磷酸化过程有积极影响，因为发现经过丝光处理的样品中的磷含量高出三倍。以铜吸附过程为参考，研究了磷酸化棉织物的吸附性能。当磷酸化溶液中HPO的浓度为1.40 M时，磷酸化织物的静态交换容量达到最大值，发现其为1.48±0.11 mmol/g，磷含量为0.898±0.090 mmol/g。对于磷含量不超过0.80 mmol/g的样品，单个含磷基团会发生铜的吸附。对从含磷酸化纺织品的水溶液中吸附微量镅、铀和钚放射性核素的初步研究表明效率很高。
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