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Architecting neonicotinoid-scavenging nanocomposite hydrogels for environmental remediation


Alammar, Abdulaziz and Sang, Hee Park and Ibrahim, Izwaharyanie and Arun, Deepak and Holtzl, Tibor and Dumée, Ludovic F. and Lim, Hong Ngee and Szekely, Gyorgy (2020) Architecting neonicotinoid-scavenging nanocomposite hydrogels for environmental remediation. Applied Materials Today, 21. art. no. 100878. pp. 1-11. ISSN 2352-9407


The ubiquitous presence of neonicotinoid insecticides in the environment poses potential health concerns across all biomes, aquatic systems, and food chains. This global environmental challenge requires robust, advanced materials to efficiently scavenge and remove these harmful neonicotinoids. In this work, we engineered nanocomposite hydrogels based on sustainable cellulose acetate for water treatment. The nanocomposite hydrogels were incorporated with small quantities of polymers of intrinsic microporosity (PIM-1) and graphene oxide (GO). We prepared the hydrogels using green solvents such as Cyrene and MeTHF via simple dropwise phase inversion. High adsorption capacity and fast kinetic behavior toward acetamiprid, clothianidin, dinotefuran, imidacloprid, and thiamethoxam were observed. We also developed a rapid and sustainable ultrasound-assisted regeneration method for the hydrogels. Molecular dynamics of the complex quaternary system revealed the synergistic effects of the components, and the presence of PIM-1 was found to increase the GO surface area available for neonicotinoid scavenging. We demonstrated the robustness and practicality of the nanocomposites in continuous environmental remediation by using the hydrogels to treat contaminated groundwater from the Adyar river in India. The presented methodology is adaptable to other contaminants in both aqueous environments and organic media.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1016/j.apmt.2020.100878
Publisher: Elsevier
Keywords: Neonicotinoids; Water purification; Green solvents; Polymers of intrinsic microporosity; Graphene
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 27 May 2022 23:32
Last Modified: 27 May 2022 23:32
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.apmt.2020.100878
URI: http://psasir.upm.edu.my/id/eprint/87924
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