Effect of copper on the removal of tetracycline from water by Myriophyllum aquaticum: Performance and mechanisms
文献类型： 外文期刊
作者： Guo, Xuan 1 ; Wang, Pengchao 2 ; Li, Yanmei 1 ; Zhong, Hua 1 ; Li, Peng 1 ; Zhang, Chengjun 1 ; Zhao, Tongke 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr & Resources, Beijing 100097, Peoples R China
2.Qingdao Agr Univ, Sch Resources & Environm, Qingdao 266109, Shandong, Peoples R China
关键词： Tetracycline; Copper; Myriophyllum aquaticum; Adsorption; Functional groups; Mechanism
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）
ISSN： 0960-8524
年卷期： 2019 年 291 卷
页码：
收录情况： SCI
摘要： Pollution with antibiotics and heavy metals necessitates efficient approaches for their removal. This study was conducted to investigate the role of Cu in the tetracycline (TC) removal potential of the floating plant Myriophyllum aquaticum and determine the underlying mechanisms. Myriophyllum aquaticum exhibited high TC removal potential from water (60% at 50 mg.L-1 TC and 10 g.L-1 M. aquaticum). Adsorption was the main mechanism of TC removal within 2 h, accounting for over 75% and 90% of total TC removal with and without Cu (II), respectively. Fourier-transform infrared spectroscopy and functional group identification showed that -OH, -COOH, and -NH2 were involved in TC adsorption through ion exchange. Cu(II) may act as a bridge during TC adsorption with M. aquaticum, but competitive adsorption of Cu(II) and TC on M. aquaticum occurs in case of excessive Cu(II). Myriophyllum aquaticum can serve as an important bioresource for effectively removing TC and Cu(II) from aquatic environments.
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