Efficient light-free activation of peroxymonosulfate by carbon ring conjugated carbon nitride for elimination of organic pollutants
文献类型：期刊论文
| 作者 | Chen, Zhenhuan; Li, Tong; Zhu, Yue; Liang, Xiaoying; Zhao, Zhiyu; Wang, Di; Li, Junhao; Gao, Yaowen; Hu, Chun |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2021-09-15 |
| 卷号 | 420页码:- |
| 关键词 | Carbon nitride pi-Conjugation Light-free PMS activation PMS reduction and oxidation Actual industrial wastewater remediation |
| ISSN号 | 1385-8947 |
| 英文摘要 | Realizing graphitic carbon nitride (g-C3N4) being active in light-free heterogeneous catalysis remains a big challenge as a result of its inertness if not irradiated. Herein, we demonstrate the successful construction of gC(3)N(4)-based in-plane heterostructure by intimately connecting g-C3N4 framework with carbon ring via strong pi-conjugated bonds, which regulates the electron density distribution of the g-C3N4 composite. The optimized carbon ring conjugated carbon nitride (CCN0.1) with porous architecture and modulated electronic structure delivers admirable catalytic performance in peroxymonosulfate (PMS) activation without the need of light, with its specific activity being significantly superior to nonmetal-doped g-C3N4 and comparable to part of active nitrogen-doped carbon materials. Experimental data and theoretical results revealed the two domains of g-C3N4 with higher electron density and the conjugated carbon ring with lower electron density in CCN0.1 involve in PMS conversion accounting for PMS reduction and oxidation, respectively, which simultaneously facilitates dissolved oxygen reduction over the g-C3N4 field. Moreover, CCN0.1 shows robust stability in PMS activation, and meanwhile, the CCN0.1 /PMS system exhibits potential effectiveness in actual industrial wastewater remediation. This work expands the range of nonmetallic g-C3N4-based materials for light-free activation of persulfate and deepens the mechanistic understanding of persulfate conversion process for wider environmental applications. |
| WOS研究方向 | Engineering, Environmental ; Engineering, Chemical |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46199]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Guangzhou Univ, Minist Educ, Key Lab Water Qual & Conservat Pearl River Delta, Inst Environm Res Greater Bay, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Zhenhuan,Li, Tong,Zhu, Yue,et al. Efficient light-free activation of peroxymonosulfate by carbon ring conjugated carbon nitride for elimination of organic pollutants[J]. CHEMICAL ENGINEERING JOURNAL,2021,420:-. |
| APA | Chen, Zhenhuan.,Li, Tong.,Zhu, Yue.,Liang, Xiaoying.,Zhao, Zhiyu.,...&Hu, Chun.(2021).Efficient light-free activation of peroxymonosulfate by carbon ring conjugated carbon nitride for elimination of organic pollutants.CHEMICAL ENGINEERING JOURNAL,420,-. |
| MLA | Chen, Zhenhuan,et al."Efficient light-free activation of peroxymonosulfate by carbon ring conjugated carbon nitride for elimination of organic pollutants".CHEMICAL ENGINEERING JOURNAL 420(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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