Fabrication of environmentally-friendly composited sponges for efficient removal of fluoroquinolones antibiotics from water
Funding Number
2021CT001
Funding Sponsor
National Natural Science Foundation of China
Author's Department
Chemistry Department
Fourth Author's Department
Chemistry Department
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https://doi.org/10.1016/j.jhazmat.2021.127796
Document Type
Research Article
Publication Title
Journal of Hazardous Materials
Publication Date
1-1-2021
doi
10.1016/j.jhazmat.2021.127796
Abstract
In this study, two environmentally-friendly macroscopically formal (PVF) composited sponges (PL and PLS) functionalized with lignin and lignosulfonate, respectively, were fabricated by a one-step mechanical foaming method. PLS, obtained with the fed mass ratio of 0.3:1 lignosulfonate to PVF in the preparation process, possessed a large specific surface area of approximately 22.396 m2/g, a three-dimensional skeleton structure with a skeletal density of 3.236 g/cm3, and 0.338 mmol/g of acidic oxygen-containing groups. Thus, it showed a high adsorption capacity of 0.16–0.24 mmol/g in removing seven antibiotics, of the popular fluoroquinolones (FQs) family from water. The contributions of hydrogen bonding, electrostatic attraction (EA) and π-π electron donor-acceptor interaction to the adsorption of FQs onto the PL and PLS sponges were analyzed systematically by investigating the pH dependence of the adsorption capacity, and the changes in adsorption of two sub structural analogs of FQs as molecular probes, and by performing theoretical calculations. The EA between the acidic oxygen-containing groups on the sponges and the amino groups of FQs played a dominant role in adsorption in near neutral conditions, leading to a superior adsorption performance for PLS. Overall, the composited sponges have the advantages of simple production, environmental-friendliness, convenient recycle, and low cost, which renders them potentially viable in treating real wastewater containing FQs.
Recommended Citation
APA Citation
Gao, B.
Chang, Q.
Xi, Z.
El-Sayed, M.
...
(2021). Fabrication of environmentally-friendly composited sponges for efficient removal of fluoroquinolones antibiotics from water. Journal of Hazardous Materials,
10.1016/j.jhazmat.2021.127796
https://fount.aucegypt.edu/faculty_journal_articles/2599
MLA Citation
Gao, Boqiang, et al.
"Fabrication of environmentally-friendly composited sponges for efficient removal of fluoroquinolones antibiotics from water." Journal of Hazardous Materials, 2021,
https://fount.aucegypt.edu/faculty_journal_articles/2599