Adsorption enhanced photocatalytic degradation sulfadiazine antibiotic using porous carbon nitride nanosheets with carbon vacancies

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Adsorption enhanced photocatalytic degradation sulfadiazine antibiotic using porous carbon nitride nanosheets with carbon vacancies
	Liu, Meijun; Zhang, Depeng; Han, Jinglong; Liu, Chengbin; Ding, Yangcheng; Wang, Zhigang; Wang, Aijie
刊名	CHEMICAL ENGINEERING JOURNAL
	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.
内容类型	期刊论文
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.