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Multi-walled carbon nanotube/amino-functionalized MIL-53(Fe) composites: Remarkable adsorptive removal of antibiotics from aqueous solutions

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成果类型:
期刊论文
作者:
Xiong, Weiping;Zeng, Zhuotong;Li, Xin;Zeng, Guangming*;Xiao, Rong*;Yang, Zhaohui;Zhou, Yaoyu;Zhang, Chen;Cheng, Min;Hu, Liang;Zhou, Chengyun;Qin, Lei;Xu, Rui;Zhang, Yanru
通讯作者:
Zeng, Guangming;Xiao, Rong
作者机构:
[Yang, Zhaohui; Zhang, Chen; Hu, Liang; Xiong, Weiping; Cheng, Min; Li, Xin; Zeng, Guangming; Xu, Rui; Xiao, Rong; Qin, Lei; Zhang, Yanru; Zhou, Chengyun] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Yang, Zhaohui; Zhang, Chen; Hu, Liang; Xiong, Weiping; Cheng, Min; Li, Xin; Zeng, Guangming; Xu, Rui; Qin, Lei; Zhang, Yanru; Zhou, Chengyun] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
[Zeng, Zhuotong; Xiao, Rong] Cent S Univ, Xiangya Hosp 2, Dept Dermatol, Changsha 410011, Hunan, Peoples R China.
[Zhou, Yaoyu] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
通讯机构:
[Zeng, GM; Xiao, R] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
Adsorption;Chlortetracycline hydrochloride;MWCNT/NH(2)-MIL-53(Fe);Removal;Tetracycline hydrochloride
期刊:
Chemosphere
ISSN:
0045-6535
年:
2018
卷:
210
页码:
1061-1069
基金类别:
National Natural Science Foundation of China [81773333, 51521006, 51378190, 51578223, 51709103]; Program for Changjiang Scholars and Innovative Research Team in University [IRT-13R17]; Fundamental Research Funds for the Central Universities; Key Research and Development Program of Hunan Province [2017SK2242]
机构署名:
本校为其他机构
院系归属:
资源环境学院
摘要:
A novel adsorbent composite was synthesized by combining amino-functionalized MIL-53(Fe) with multi-walled carbon nanotubes (MWCNT), and used to adsorb tetracycline hydrochloride (TCN) and chlortetracycline hydrochloride (CTC). The maximum adsorption capacities of TCN and CTC over MWCNT/NH2-MIL-53(Fe) at 25 degrees C were 368.49 and 254.04 mg g(-1), which are, respectively, 1.79 and 837 times higher than that of chaff biochar. Interestingly, the mesoporosity of MWCNT/NH2-MIL-53(Fe) significantly increased through introduction of MWCNT into NH2-MIL-53(Fe), which proved to be favorable for the production of active adsorption sites. Besides, the remarkably increased adsorption capacity can be ascribed to the hydrogen bonding between amino functional groups on MWCNT/NH2MIL-53(Fe) and hydroxyl functional groups on TCN or CTC. Moreover, the pi-pi interaction between adsorbate and adsorbent was considered the main reason for the adsorption of TCN and CTC. The great adsorption capacity, as well as excellent reusability, demonstrated the potential application of MWCNT/NH2-MIL-53(Fe) in the removal of TCN and CTC from aqueous solutions. (C) 2018 Elsevier Ltd. All rights reserved.

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