Rapid nitrogen-rich modification of Calotropis gigantea fiber for highly efficient removal of fluoroquinolone antibiotics | |
Department | 环境材料与生态化学研究发展中心 |
Yi, Langsha1; Liang, Guiwei1; Xiao, Weilong1; Duan, Wenzhen1; Wang AQ(王爱勤)2; Zheng YA(郑易安)1; Zheng YA(郑易安) | |
2018 | |
Source Publication | Journal of Molecular Liquids |
ISSN | 0167-7322 |
Volume | 256Pages:408-415 |
Abstract | Calotropis gigantea fiber (CGF) is a typical cellulosic fiber with a unique hollow structure. When treated with NaClO2 to improve its hydrophilicity, this fiber was further modified by polydopamine (PDA) from its rapid deposition using CuSO4/H2O2 as a trigger, by which the nitrogen-rich CGF (NR-CGF) was achieved and subsequently, its adsorption properties to Ciprofloxacin (Cip) and Norfioxacin (Nor) were systematically investigated. The results indicated that NaClO2-mediated oxidation process could greatly reduce the water contact angle of CGF from original 130° to 50°, while its unique hollow-structure was retained and then successfully modified by fiber-oriented PDA coating. Batch adsorption experiments demonstrated that NR-CGF had a highly efficient adsorption efficiency for fluoroquinolone antibiotics, with the adsorption capacity of 136.43 mg/g for Cip and 88.43 mg/g for Nor at initial pH of 8.0 and initial concentration of 100 mg/L. Meanwhile, >80% and >90% equilibrium adsorption can be achieved within 1 min and 10 min, respectively. After five adsorption-desorption cycles, no significant decrease in the adsorption capacity was observed. Given its fast adsorption kinetics, high adsorption capacity, excellent reusability and environmental friendliness, NR-CGF from green resource will find its promising application as a highly efficient adsorbent for removal of fluoroquinolone antibiotics from water. |
Keyword | Calotropis Gigantea Fiber Polydopamine Nitrogen-rich Modification Fluoroquinolone Antibiotics Adsorption |
Subject Area | 环境材料与生态化学 |
DOI | 10.1016/j.molliq.2018.02.060 |
Funding Organization | the National Natural Science Foundation of China (No. 21477135);the Gansu Provincial Natural Science Foundation of China (No. 17JR5RA205);the Fundamental Research Funds for the Central Universities (No. lzujbky-2017-209);the College Students' Innovation and Entrepreneurship Training Program of Lanzhou University (No. 201710730130) |
Indexed By | SCI |
Language | 英语 |
Funding Project | 功能复合材料研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23617 |
Collection | 环境材料与生态化学研究发展中心 |
Corresponding Author | Zheng YA(郑易安) |
Affiliation | 1.Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Gansu, Peoples R China |
Recommended Citation GB/T 7714 | Yi, Langsha,Liang, Guiwei,Xiao, Weilong,et al. Rapid nitrogen-rich modification of Calotropis gigantea fiber for highly efficient removal of fluoroquinolone antibiotics[J]. Journal of Molecular Liquids,2018,256:408-415. |
APA | Yi, Langsha.,Liang, Guiwei.,Xiao, Weilong.,Duan, Wenzhen.,Wang AQ.,...&郑易安.(2018).Rapid nitrogen-rich modification of Calotropis gigantea fiber for highly efficient removal of fluoroquinolone antibiotics.Journal of Molecular Liquids,256,408-415. |
MLA | Yi, Langsha,et al."Rapid nitrogen-rich modification of Calotropis gigantea fiber for highly efficient removal of fluoroquinolone antibiotics".Journal of Molecular Liquids 256(2018):408-415. |
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