Adsorption enhanced photocatalytic degradation sulfadiazine antibiotic using porous carbon nitride nanosheets with carbon vacancies
文献类型：期刊论文
| 作者 | Liu, Meijun; Zhang, Depeng; Han, Jinglong ; Liu, Chengbin; Ding, Yangcheng; Wang, Zhigang; Wang, Aijie
|
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-02-15 |
| 卷号 | 382页码:1-9 |
| 关键词 | Carbon nitride nanosheets Carbon vacancies Adsorption enhancement Sulfadiazine degradation Hydrogen evolution |
| ISSN号 | 1385-8947 |
| 英文摘要 | Residues of antibiotics are promoting antibiotic resistance of environmental microbiota which is identified as one of the most crucial global challenge for health security. Photocatalysis has been regarded as a desirable technology for organic pollutant removal, but is underappreciated in degradation of persistent organic pollutants due to the low adsorption capacity and photocatalytic efficiency of photocatalysts. In this study, a scalable photocatalyst of single/few-layered carbon nitride nanosheets with carbon vacancies (Cv-CNNs) is synthesized through a thermal process. Quantum mechanical simulation results reveal that the C vacancies can change the plane structure of CN sheets, enhancing adsorption capability of Cv-CNNs towards sulfadiazine (SDZ, a refractory antibiotic pollutant). Furthermore, the introduction of C vacancies in Cv-CNNs enhance the redox capacity, promoting photocatalytic hydrogen evolution and SDZ degradation. The removal efficiency of SDZ (5 mg L-1) reaches almost 100% within 20 min under visible-light irradiation. In addition, the photocatalyst delivers a high H-2 evolution rate of 2.03 mmol h(-1) g(-1). The study provides a large-scale-production metal-free photocatalyst for practical application in antibiotics removal from wastewater or solar-to-hydrogen energy conversion. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45130]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Meijun,Zhang, Depeng,Han, Jinglong,et al. Adsorption enhanced photocatalytic degradation sulfadiazine antibiotic using porous carbon nitride nanosheets with carbon vacancies[J]. CHEMICAL ENGINEERING JOURNAL,2020,382:1-9. |
| APA | Liu, Meijun.,Zhang, Depeng.,Han, Jinglong.,Liu, Chengbin.,Ding, Yangcheng.,...&Wang, Aijie.(2020).Adsorption enhanced photocatalytic degradation sulfadiazine antibiotic using porous carbon nitride nanosheets with carbon vacancies.CHEMICAL ENGINEERING JOURNAL,382,1-9. |
| MLA | Liu, Meijun,et al."Adsorption enhanced photocatalytic degradation sulfadiazine antibiotic using porous carbon nitride nanosheets with carbon vacancies".CHEMICAL ENGINEERING JOURNAL 382(2020):1-9. |
入库方式： OAI收割
来源：生态环境研究中心
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