New glucosamine Schiff base grafted poly(acrylic acid) as efficient Cu2+ ions adsorbent and antimicrobial agent

Autor: Yashwant Shandil, Umesh K. Dautoo, Ghanshyam S. Chauhan
Rok vydání: 2018
Předmět:
Zdroj: Journal of Environmental Chemical Engineering. 6:5970-5979
ISSN: 2213-3437
DOI: 10.1016/j.jece.2018.09.011
Popis: Developing multifunctional materials to deal with the complex problem of water pollution has drawn significant concerns in recent time. In this study we report the synthesis of a new bi-functional polymer derived from N,N-dimethylaminobenzaldehyde and glucosamine-based Schiff base grafted poly(acrylic acid). The polymer besides affecting active adsorption of Cu2+ ions in the aqueous solution was also found to possess antibacterial properties. A high qm value of 208.33 mg g−1 for Cu2+ ions adsorption by the polymer was observed under the optimal conditions of contact time, temperature, pH of the medium and initial Cu2+ ions concentration. Presence of competing Mg2+ and Ca2+ ions was not found to have any appreciable effect on the adsorption capacity of the polymer towards Cu2+ ions which shows that the polymer is selective Cu2+ ions adsorbent under hard water conditions. The polymer also exhibited antibacterial activity against Gram (+), S. aureus and Gram (‒) P. vulgaris. The key findings reported in the present work reveal the bi-functional attributes of polymer and emphasize the role of Schiff base functionality in designing such materials.
Databáze: OpenAIRE