General synthesis of carbon and oxygen dual-doped graphitic carbon nitride via copolymerization for non-photochemical oxidation of organic pollutant
文献类型：期刊论文
| 作者 | Zhu, Yue; Chen, Zhenhuan; Gao, Yaowen; Hu, Chun |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2020-07-15 |
| 卷号 | 394页码:1-8 |
| 关键词 | Graphitic carbon nitride Nonmetal dual doping Electronic structure Persulfate Electron transfer |
| ISSN号 | 0304-3894 |
| 英文摘要 | Earth-abundant, environmental-benign and durable catalysts are of paramount importance for remediation of organic pollutants, and graphitic carbon nitride (g-C3N4) is a promising nonmetallic material for this application. However, the catalytic oxidation on g-C3N4 suffers from low efficiency because of its chemical inertness if not irradiated with light. Herein, we develop a facile copolymerization strategy for the synthesis of carbon and oxygen dual-doped g-C3N4 using urea as g-C3N4 precursor and ascorbic acid (AA) as carbon and oxygen sources, which induces electronic structure reconfiguration. By replacing AA with other organic precursors, a series of C and O dual-doped g-C3N4 are successfully prepared, demonstrating the generally of the developed methodology. As a demonstration, the C and O dual-doped g-C3N4 using AA as the organic precursor (CN-AA(0.3)) exhibits pronouncedly enhanced catalytic activity in peroxymonosulfate (PMS) activation for organic pollutant degradation without light irradiation compared with pristine g-C3N4 and single oxygen-doped g-C3N4. Experimental and theoretical results revealed the electron-poor C atoms and electron-rich O atoms as active sites for PMS activation in terms of simultaneous PMS oxidation and reduction. This work offers a universal approach to synthesize nonmetal dual-doped g-C3N4 with reconfigured electronic structure, stimulating the development of g-C3N4-based materials for diverse environmental applications. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45298]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhu, Yue,Chen, Zhenhuan,Gao, Yaowen,et al. General synthesis of carbon and oxygen dual-doped graphitic carbon nitride via copolymerization for non-photochemical oxidation of organic pollutant[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,394:1-8. |
| APA | Zhu, Yue,Chen, Zhenhuan,Gao, Yaowen,&Hu, Chun.(2020).General synthesis of carbon and oxygen dual-doped graphitic carbon nitride via copolymerization for non-photochemical oxidation of organic pollutant.JOURNAL OF HAZARDOUS MATERIALS,394,1-8. |
| MLA | Zhu, Yue,et al."General synthesis of carbon and oxygen dual-doped graphitic carbon nitride via copolymerization for non-photochemical oxidation of organic pollutant".JOURNAL OF HAZARDOUS MATERIALS 394(2020):1-8. |
入库方式： OAI收割
来源：生态环境研究中心
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