Bioinspired supramolecular fibers for mercury ion adsorption

Yeh Sheng Wang; Chih Chia Cheng; Jem Kun Chen; Fu-Hsiang Ko; Feng Chih Chang

doi:10.1039/c3ta11072a

Bioinspired supramolecular fibers for mercury ion adsorption

Yeh Sheng Wang, Chih Chia Cheng^*, Jem Kun Chen, Fu-Hsiang Ko, Feng Chih Chang

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A novel photo-cross-linkable nanofiber based on a uracil-functionalized polymer, poly[1-(4-vinylbenzyl uracil)] (PVBU), was prepared using the electrospinning technique. This PVBU nanofiber can be converted into a covalent network nanofiber through exposure to UV light at a wavelength of 254 nm. This PVBU nanofiber is able to distinguish and selectively remove mercury ions (Hg²⁺) from other metal ions in aqueous solution. The maximum Hg ²⁺ adsorption capacity of the PVBU nanofiber is 543.9 mg g ^-1, which is significantly higher than that of cyclic imide derivatives. The improved adsorption of Hg²⁺ allows a detection limit of less than 1 ppm, which has rarely been achieved for Hg²⁺ sensing. Furthermore, the PVBU fiber can be reused for 10 consecutive cycles using 1.0 M HCl treatment. This new material has significant potential for the simultaneous detection and separation of Hg²⁺ in environmental and industrial fields.

Original language	English
Pages (from-to)	7745-7750
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	1
Issue number	26
DOIs	https://doi.org/10.1039/c3ta11072a
State	Published - 17 Jul 2013

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title = "Bioinspired supramolecular fibers for mercury ion adsorption",

abstract = "A novel photo-cross-linkable nanofiber based on a uracil-functionalized polymer, poly[1-(4-vinylbenzyl uracil)] (PVBU), was prepared using the electrospinning technique. This PVBU nanofiber can be converted into a covalent network nanofiber through exposure to UV light at a wavelength of 254 nm. This PVBU nanofiber is able to distinguish and selectively remove mercury ions (Hg2+) from other metal ions in aqueous solution. The maximum Hg 2+ adsorption capacity of the PVBU nanofiber is 543.9 mg g -1, which is significantly higher than that of cyclic imide derivatives. The improved adsorption of Hg2+ allows a detection limit of less than 1 ppm, which has rarely been achieved for Hg2+ sensing. Furthermore, the PVBU fiber can be reused for 10 consecutive cycles using 1.0 M HCl treatment. This new material has significant potential for the simultaneous detection and separation of Hg2+ in environmental and industrial fields.",

author = "Wang, {Yeh Sheng} and Cheng, {Chih Chia} and Chen, {Jem Kun} and Fu-Hsiang Ko and Chang, {Feng Chih}",

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AU - Wang, Yeh Sheng

AU - Cheng, Chih Chia

AU - Chen, Jem Kun

AU - Ko, Fu-Hsiang

AU - Chang, Feng Chih

PY - 2013/7/17

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