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Chemistry. 2012 Dec 14;18(51):16571-9. doi: 10.1002/chem.201202203. Epub 2012 Oct 25.

Controlled preparation and reactive silver-ion sorption of electrically conductive poly(N-butylaniline)-lignosulfonate composite nanospheres.

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  • 1College of Materials Science and Engineering, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, PR China. qiufenglv@163.comqiufenglvfzu@gmail.com


Electroconductive poly(N-butylaniline)-lignosulfonate (PBA-LS) composite nanospheres were prepared in a facile way by in situ, unstirred polymerization of N-butylaniline with lignosulfonate (LS) as a dispersant and dopant. The LS content was used to optimize the size, structure, electroconductivity, solubility, and silver ion adsorptive capacity of the PBA-LS nanospheres. Uniform PBA-LS10 nanospheres with a minimal mean diameter of 375 nm and high stability were obtained when the LS content was 10 wt %. The PBA-LS10 nanospheres possess an increased electroconductivity of 0.109 S cm(-1) compared with that of poly(N-butylaniline) (0.0751 S cm(-1)). Furthermore, the PBA-LS10 nanospheres have a maximal silver-ion sorption capacity of 815.0 mg  g(-1) at an initial silver ion concentration of 50 mmol  L(-1) (25 °C for 48 h), an enhancement of 70.4% compared with PBA. Moreover, a sorption mechanism of silver ions on the PBA-LS10 nanospheres is proposed. TEM and wide-angle X-ray diffraction results showed that silver nanoparticles with a diameter size range of 6.8-55 nm was achieved after sorption, indicating that the PBA-LS10 nanospheres had high reductibility for silver ions.

Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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