MOF-derived nitrogen doped carbon modified g-C3N4 heterostructure composite with enhanced photocatalytic activity for bisphenol A degradation with peroxymonosulfate under visible light irradiation
文献类型：期刊论文
| 作者 | Yu, Gang; Wang, Yanbing; Shao, Huixin ; Zhang, Juanjuan; Guo, Tao; Xiao, Ke; Yang, Bo; Zhang, Hui; Zhao, Xu; Gong, Yan
|
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2018-10-05 |
| 卷号 | 233页码:35-45 |
| ISSN号 | 0926-3373 |
| 关键词 | Photocatalysis g-C3N4 MOF Peroxymonosulfate BPA |
| 文献子类 | Article |
| 英文摘要 | Designing metal-free g-C3N4 based photocatalytic system with efficient photocatalytic activity has received enormous attention in the field of environmental remediation because of its great potential for removing refractory contaminants. Herein, a novel metal organic framework (ZIF-8)-derived nitrogen doped carbon (ZIF-NC) modified g-C3N4 heterostructured composite was synthesized through a facile thermal treatment method. Benefiting from the hierarchical porosity, conductive network, and abundant exposed active sites for peroxymonosulfate (PMS) activation of MOF-derived nitrogen doped carbon, the introduction of MOF-derived nitrogen doped carbon into g-C3N4 not only facilitates the charge separation of g-C3N4 but also greatly accelerates PMS activation to yield high active SO4 center dot(-) radical. The energy band diagrams derived from Mott-Schottky, valence band X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy studies indicate that the formed heterojuncUon between g-C3N4 and ZIP-NC is Schottky type. The ZIF-NC with lower Fermi level energy can serve as an excellent electron accepter to enable fast electron transfer from the conduction band of gC(3)N(4) to ZIF-NC and boost the charge separation of g-C3N4. Photoelectrochemical tests combined with multiple spectroscopic techniques further confirm the enhanced charge carrier separation performance of composite. As a result, the as-prepared hybrids displayed remarkably improved photocatalytic activities toward bisphenol A (BPA) degradation in the presence of PMS under visible light irradiation. The apparent rate constant, k, for BPA degradation of the ZIF-NC/g-C3N4 composites with PMS is approximately 8.6 times as high as that of bare gC(3)N(4). This work provides a promising approach on the rational design of high-performance, cost-effective photocatalysts for environmental remediation. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41386]  |
| 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 | Yu, Gang,Wang, Yanbing,Shao, Huixin,et al. MOF-derived nitrogen doped carbon modified g-C3N4 heterostructure composite with enhanced photocatalytic activity for bisphenol A degradation with peroxymonosulfate under visible light irradiation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,233:35-45. |
| APA | Yu, Gang.,Wang, Yanbing.,Shao, Huixin.,Zhang, Juanjuan.,Guo, Tao.,...&Gong, Yan.(2018).MOF-derived nitrogen doped carbon modified g-C3N4 heterostructure composite with enhanced photocatalytic activity for bisphenol A degradation with peroxymonosulfate under visible light irradiation.APPLIED CATALYSIS B-ENVIRONMENTAL,233,35-45. |
| MLA | Yu, Gang,et al."MOF-derived nitrogen doped carbon modified g-C3N4 heterostructure composite with enhanced photocatalytic activity for bisphenol A degradation with peroxymonosulfate under visible light irradiation".APPLIED CATALYSIS B-ENVIRONMENTAL 233(2018):35-45. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。