Su Y, Wenzel M, Paasch S, Seifert M, Doert T, Brunner E, Weigand JJ (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 212
Article Number: 113333
DOI: 10.1016/j.envres.2022.113333
High-efficient and fast adsorption of uranium is important to reduce the hazards caused by the uranium contamination of water environment due to the increased human activities. Herein, brewer's spent grain (BSG)-supported superabsorbent polymers (SAP) with different cross-linking densities are prepared as cheap and eco-friendly adsorbents for the first time via one-pot swelling and graft polymerization. A 7 wt% NaOH solution is used to swell BSG before grafting and subsequently neutralize the acrylic acid to control the reaction rate without producing alkaline wastewater. Compared with the traditional methods, swelling improves the grafting density and the utilization of raw materials due to the increased disorder degree of the BSG fibers. This results in the grafting of abundant carboxyl and amide groups onto the BSG backbone, forming a strongly hydrophilic polymer network of the BSG-SAP. Compared with the reference polymers without BSG, BSG-SAP presents higher adsorption capacity and enhanced reusability. The highly cross-linked BSG-SAP (BSG-SAP-H) shows an outstanding adsorption capacity of U(VI) (1465 mg/g at pH
APA:
Su, Y., Wenzel, M., Paasch, S., Seifert, M., Doert, T., Brunner, E., & Weigand, J.J. (2022). One-pot synthesis of brewer's spent grain-supported superabsorbent polymer for highly efficient uranium adsorption from wastewater. Environmental Research, 212. https://doi.org/10.1016/j.envres.2022.113333
MLA:
Su, Yi, et al. "One-pot synthesis of brewer's spent grain-supported superabsorbent polymer for highly efficient uranium adsorption from wastewater." Environmental Research 212 (2022).
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