Abstract
With the growth in civilization and industrialization, there is a rise in the release of organic dyes into water systems, which is causing serious public concern. Although adsorption using biopolymer-based hydrogels has proven to be an ideal technique for treating these dye contaminants from aqueous solutions, these hydrogels suffer from a lack of mechanical stability and recoverability compared to synthetic polymers. Herein, we review the low-cost synthesis of hybrid hydrogel nanocomposites to improve the mechanical stability and separation of the hydrogel in removing dyes from an aqueous solution. The literature reports hydrogels and their nanocomposites as noble adsorbents well-known for addressing water pollution issues. In adsorption technology, hydrogel nanocomposites act as absorbents, prominent to improve the performance of removal efficiency. This current chapter pays particular attention to some recent breakthrough development in water remediation based on hydrogels as efficient adsorbents. In-depth discussions on adsorption and various methods for the synthesis of hydrogels have been devoted to applications of these nanocomposites and are compared in this contribution to the removal efficiency of organic dyes from wastewater.
Keywords
- Adsorbents
- Hydrogel nanocomposites
- Organic dyes
- Wastewater remediation
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Copyright 2017, Walter de Gruyter GmbH
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This research was supported by the National Research Foundation (NRF) under the Thuthuka programme (UID. 117727), and the University of Limpopo (R202, R232, R355), South Africa.
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Malatji, N., Makhado, E., Modibane, K.D., Pandey, S., Hato, M.J. (2022). Sequestration of Organic Dyes from Wastewater Using Hydrogel Nanocomposites. In: Hato, M.J., Sinha Ray, S. (eds) Functional Polymer Nanocomposites for Wastewater Treatment. Springer Series in Materials Science, vol 323. Springer, Cham. https://doi.org/10.1007/978-3-030-94995-2_7
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