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Radiation green synthesis of Guar gum -Pectin/ Polyacrylamide/ zinc oxide superabsorbent hydrogel composites for sustainable agriculture

Article scientifique 2022 Anglais

Résumé

Abstract In the current study, the performance of superabsorbent hydrogel composites comprised of Guar gum-Pectin/ Polyacrylamide/ ZnO crosslinked with gamma irradiation (10 kGy) has been investigated for sustainable agriculture. The claimed composites (GG/PC/PAAm/ZnOx) were characterized by FTIR, TGA, and AFM. The swelling capacity data reveal that the equilibrium water swelling (EW) of the composites was increased by increasing the ZnO content from 600 g/g to 1050 g/g for zero to the highest concentration of ZnO, respectively. Furthermore, the physical properties of the soil mixed with the hydrogels were improved; water holding capacity (WHC) increased to 66% and water retention (WR) kept at 15% after 20 days. The composites showed a good degradability in the biodegradation test. They also portrayed super-absorption capacity at three swelling/deswelling cycles. This advancement is important for reducing water consumption through the irrigation of arid lands. The prepared composites were proved as excellent candidates in sustainable agriculture applications.

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Sayed, A., Mohamed, M., Abdel‐Raouf, M., Adel, G. (2022). Radiation green synthesis of Guar gum -Pectin/ Polyacrylamide/ zinc oxide superabsorbent hydrogel composites for sustainable agriculture. https://doi.org/10.21203/rs.3.rs-1895268/v1

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Auteur(s)

Asmaa Sayed Mai M. Mohamed Manar El‐Sayed Abdel‐Raouf Ghada Adel

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