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Synthesis, Characterization and Environmental Application of an Original Adsorbent: Polyaniline-coated Luffa Cylindrica by Awatef Dali; Imed Eddine Boulguemh; Fadila Louafi; Chabane Mouats is a Materials Science article available to read on EtoBox.

What is Synthesis, Characterization and Environmental Application of an Original Adsorbent: Polyaniline-coated Luffa Cylindrica about?

The coating of the fibrous skeleton of luffa cylindrica (LC) with polyaniline (PANI) was carried out by in-situ polymerization of aniline. A thin PANI layer in its emeraldine-salt form (ES) got bound on to the LC surface, as revealed by the green color the latter developed, procuring more roughness to the luffa fibers. The surfaces of both materials, i.e. the purified original luffa (LC) and the PANI-coated luffa (PANI/LC) were characterized by FTIR, completed by the Raman range, SEM/EDX and XRD. In particular, the presence of N-H moieties in the FTIR spectrum and the appearance of the following bands: C = N stretching of the quinoid di-imine units, C = C stretching of the quinoid ring and C-N .+ band of the radical-cation in the Raman spectrum confirmed the effectiveness of the coating of LC. Dedoping, as determined by solid addition method, completed at around pH 9.5. After characterization, PANI/LC was tested for its capacity to adsorb hexavalent chromium anionic species. First, the emergence of the chromium characteristic peak in the EDX spectrum brought experimental evidence for the effective sorption of chromium onto the PANI/LC surface. Then, the novel material displayed a h

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Author

Awatef Dali; Imed Eddine Boulguemh; Fadila Louafi; Chabane Mouats

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Materials Science (Physical Sciences)