Gamma Radiation-Induced Graft Polymerization of PP-G-GMA-PB for the Adsorption of Radioactive 137Cs from Wastewater

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In this study, glycidyl methacrylate was grafted onto nonwoven polypropylene fabric (PP-g-GMA) via gamma radiation-induced graft polymerization at doses of 10, 20, 30, 40, and 50 kGy. The results revealed that increasing the radiation dose led to a higher degree of grafting. A notable rise in grafting was observed at 20 kGy, reaching 45.21%, and continued to increase significantly with higher doses, 112.48% at 30 kGy, 234.43% at 40 kGy, and peaking at 340.11% at 50 kGy. To evaluate its application in radioactive wastewater treatment, the PP-g-GMA was further functionalized with Prussian blue (PB) to produce the PP-g-GMA-PB adsorbent for the removal of radioactive cesium-137 (137Cs). Among the tested radiation doses, the adsorbent synthesized at 30 kGy exhibited the highest 137Cs removal efficiency, achieving 72.40% adsorption within 24 h. In comparison, adsorbents prepared at 10, 20, 40, and 50 kGy showed removal efficiencies of 45.45%, 47.73%, 50.32%, and 48.70%, respectively. These findings demonstrate that the PP-g-GMA-PB adsorbent, particularly at a grafting dose of 30 kGy, holds promise for effective 137Cs removal from radioactive wastewater, highlighting its potential for practical environmental remediation applications.

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Materials Science Forum (Volume 1194)

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159-167

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June 2026

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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