Published : 2022-10-26

Gamma-induced grafting of rice straw cellulose with polyvinylpyrrolidone


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.





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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.