標題: Bioinspired supramolecular fibers for mercury ion adsorption
作者: Wang, Yeh-Sheng
Cheng, Chih-Chia
Chen, Jem-Kun
Ko, Fu-Hsiang
Chang, Feng-Chih
材料科學與工程學系
應用化學系
Department of Materials Science and Engineering
Department of Applied Chemistry
公開日期: 2013
摘要: Anovel 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 Hg2+ 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.
URI: http://hdl.handle.net/11536/22446
http://dx.doi.org/10.1039/c3ta11072a
ISSN: 2050-7488
DOI: 10.1039/c3ta11072a
期刊: JOURNAL OF MATERIALS CHEMISTRY A
Volume: 1
Issue: 26
起始頁: 7745
結束頁: 7750
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