期刊
ENVIRONMENTAL POLLUTION
卷 226, 期 -, 页码 379-384出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2017.03.063
关键词
Pharmaceutical antibiotics; Adsorption; Covalent triazine framework; Sulfamethoxazole; Tylosin
资金
- Natural Science Foundation of China [21407074, 51508080, 41430752]
- China Postdoctoral Science Foundation [2015M571832]
- College Natural Science Foundation of Jiangsu [15KJB610010, 16KJB150025]
The exposures of pharmaceutical antibiotics in water solution caused potential risks for ecological environment and human health. In the present study, porous covalent triazine frameworks (CTFs) were synthesized and the adsorption behavior of sulfamethoxazole (SMX) and tylosin (TL) was investigated. The CTFs were characterized by X-ray diffraction, transform infrared and N-2 adsorption/desorption. Sulfamethoxazole displayed much stronger adsorption than tylosin on microporous CTF-1 adsorbent due to the pore-filling effect. While the adsorption of bulky tylosin on microporous CTF-1 was suppressed because of the size exclusion effect. Additionally, the porous CTFDCBP showed stronger adsorption affinity and faster adsorption kinetics than other porous adsorbents, which was attributed to wide pore size distribution and open pore structure. Findings in this study highlight the potential of using porous CTFs as a potential adsorbent to eliminate antibiotics from water, especially for selective adsorption of bulky molecular pollutant. (C) 2017 Elsevier Ltd. All rights reserved.
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