Published : 2022-10-26

Gamma-induced grafting of rice straw cellulose with polyvinylpyrrolidone

Abstract

Cellulose obtained from rice straw was grafted with polyvinylpyrrolidone (Cell-g-PVP). The process was induced by simultaneous gamma iradiation (Co-60). The presence of the grafted PVP chains was confirmed by FT-IR, XRD and EDS methods. The influence of the iradiation dose (20 and 30 kGy) on the reaction efficiency and thermal stability of Cell-g-PVP was investigated. The grafting yield at the dose of 30 kGy was about 56%. The higher dose of radiation resulted in better thermal stability. The AAS results showed that Ni(II), Cu(II), and Cr(II) ions can be adsorbed by Cell-g-PVP. The order of ion metals adsorption capacity of Cell-g-PVP was Cu(II) > Ni(II) > Cr(II). The adsorption isotherm of Cu(II) metal ion using the Cell-g-PVP followed the Langmuir adsorption isotherm whereas the chemical adsorption and the adsorption energy were constant on all sides of the copolymer.



Details

References

Statistics

Authors

Download files

PDF

Suhartini, M., Tachrim, Z. P., Anggarini, N. H. ., Rahmawati, R., Prasetyani, A. ., Melawati, J. ., Deswita, D., & Sugeng, B. . (2022). Gamma-induced grafting of rice straw cellulose with polyvinylpyrrolidone. Polimery, 67(9), 450-456. https://doi.org/10.14314/polimery.2022.9.6