Removal of phenoxyacetic acid based herbicides by crosslinked poly(N-vinyl pyrrolidone)
Abstract
In this study, binding of herbicides such as p-chlorophenoxyacetic acid, 2,4-dichlorophenoxyacetic acid and the ammonium salt of 2,4-dichlorophenoxyacetic acid onto poly(N-vinyl pyrrolidone) and the adsorption of these herbicides to crosslinked poly(N-vinyl pyrrolidone) are investigated. It is shown that there are electrostatic interactions between anionic sites of the herbicides with cationic sites of poly(N-vinyl pyrrolidone). The adsorption of these herbicides to crosslinked poly(N-vinyl pyrrolidone) shows Type III adsorption isotherms. The values of percentage sorption of the low concentrations of herbicides are higher than those at the high concentrations of herbicides.
Source
Iranian Polymer Journal (English Edition)Volume
5Issue
2Collections
- Makale Koleksiyonu [5745]