期刊
BIORESOURCE TECHNOLOGY
卷 292, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.121951
关键词
Biochar; Graphene oxide; Ciprofloxacin; Sparfloxacin; Adsorption
资金
- Technology Research and Application Demonstration of Food Safety Social Co-governance Information [2017YFC1602001]
- Science and technology project of General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China [2016IK296]
- Youth science and technology talents fund project of Chongqing Municipal Science and Technology Commission of the People's Republic of China [cstc2014kjrc-qnrc00002]
- Food and agriculture research fund project [cstc2013yykfB0165]
To create more active adsorption sites on biochar, the Fe3O4/GO/citrus peel-derived magnetic bio-nanocomposite (mGOCP) with hierarchically porous architectures was synthesized by a facile one-pot hydrothermal approach for efficient removal of fluoroquinolone antibiotics ciprofloxacin (CIP) and sparfloxacin (SPA). The characterization analysis of bio-nanocomposites showed that the incorporation of GO could ensure relatively higher surface area (1556 cm(2) g(-1)), more abundant pore structure, and higher thermal stability within mGOCP bio-nanocomposites than Fe3O4/citrus peel-derived magnetic bio-nanocomposites (mCP). And the mGOCP-1% attained outstanding adsorption capacity for CIP (283.44 mg g(-1)) and SPA (502.37 mg g(-1)), respectively. The primary adsorption mechanisms for CIP and SPA included pi-pi electron donor-acceptor interaction, H-bonding, hydrophobic interaction and electrostatic interaction. Overall, the surface morphology and structural composition of biochars could be regulated with GO to facilitate the adsorption capacity. Moreover, the developed mGOCP could be extended as a potential adsorbent for removal of other emerging organic pollutants in water.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据