Activation of peroxymonosulfate by sp(2)-hybridized microalgae-derived carbon for ciprofloxacin degradation: Importance of pyrolysis temperature
文献类型：期刊论文
| 作者 | Zou, Yubin ; Li, Wentao; Yang, Lian; Xiao, Feng; An, Guangyu; Wang, Yue; Wang, Dongsheng
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2019-08-15 |
| 卷号 | 370页码:1286-1297 |
| 关键词 | Microalgae-derived carbon Activation of peroxymonosulfate Nonradical mechanism Magnetic separation |
| ISSN号 | 1385-8947 |
| 英文摘要 | Microalgae can be harmful to natural water in a variety of ways, and how to deal with this problem has received much attention. Magnetic nitrogen-doped microalgae-derived carbon (Fe-N@MC) was successfully prepared by pyrolysis under different temperatures. The sp(2)-hybridized carbon and C=O bond structure were strongly dependent on the pyrolysis temperature, and Fe-N@MC500 had a higher ratio of sp(2) -hybridized carbon than other counterparts. The surface morphology and structure analysis indicated that the Fe3O4 was successfully anchored into the carbon layer for magnetic separation. Ciprofloxacin (CIP) was selected as the indicator to test the catalytic performance. In the presence of peroxymonosulfate (PMS), the degradation efficiencies of nano-Fe3O4, N@MC500 and Fe-N@MC500 for CIP were 46.8%, 79.8% and 92.6% within 120 min. Under different reaction conditions (PMS dosage, pH, temperature), Fe-N@MC500 composite was shown to have superior efficiency and stability. Radical quenching experiments and electron spin resonance (ESR) indicated that singlet oxygen (O-1(2)) was dominant in the reaction supplemented by( center dot)OH and SO4 center dot-. It is believed that PMS could work as both acceptor and donor for efficient activation by sp(2)-hybird carbon structure and C=O bond. This study successfully provides a feasible method for the synthesis of recycled Fe-N@MC with microalgae as a renewable carbon feedstock to deal with antibiotics. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42620]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.North China Elect Power Univ, Sch Renewable Energy, Beijing 102206, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zou, Yubin,Li, Wentao,Yang, Lian,et al. Activation of peroxymonosulfate by sp(2)-hybridized microalgae-derived carbon for ciprofloxacin degradation: Importance of pyrolysis temperature[J]. CHEMICAL ENGINEERING JOURNAL,2019,370:1286-1297. |
| APA | Zou, Yubin.,Li, Wentao.,Yang, Lian.,Xiao, Feng.,An, Guangyu.,...&Wang, Dongsheng.(2019).Activation of peroxymonosulfate by sp(2)-hybridized microalgae-derived carbon for ciprofloxacin degradation: Importance of pyrolysis temperature.CHEMICAL ENGINEERING JOURNAL,370,1286-1297. |
| MLA | Zou, Yubin,et al."Activation of peroxymonosulfate by sp(2)-hybridized microalgae-derived carbon for ciprofloxacin degradation: Importance of pyrolysis temperature".CHEMICAL ENGINEERING JOURNAL 370(2019):1286-1297. |
入库方式： OAI收割
来源：生态环境研究中心
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