Degradation of tetracycline in water by gas–liquid plasma in conjunction with rGO-TiO2 nanocomposite

doi:10.1088/2058-6272/ac1323

	Degradation of tetracycline in water by gas–liquid plasma in conjunction with rGO-TiO2 nanocomposite
	LIU,Xinghao 1,2,3; CHENG,Cheng 1; XU,Zimu 3; HU,Shuheng 3; SHEN,Jie 1; LAN,Yan 1; CHU,Paul K 4
刊名	Plasma Science and Technology
	2021-09-14
卷号	23
关键词	gas–liquid plasma rGO-TiO2 tetracycline degradation mechanism
ISSN号	1009-0630
DOI	10.1088/2058-6272/ac1323
通讯作者	CHENG,Cheng()
英文摘要	Abstract Tetracycline (TC) is an antibiotic mainly used in livestock production and respiratory infection. Traditional methods are not effective in removing TC from solution. In this study, TC was degraded by gas–liquid plasma in the presence of rGO-TiO2 in solution. The rGO-TiO2 was prepared by modified hummers and hydrothermal method. The electrical and optical properties of the gas–liquid discharge plasma were studied and the produced long-lived reactive species were analyzed by spectrophotometer. The degradation efficiency of TC was improved by 41.4% after plasma treatment for 12 min in presence of 30 mg l?1 rGO-TiO2 compared to that with plasma alone. The degradation efficiency increased with increasing discharge power, but as the initial concentration was increased from 20 to 80 mg l?1, the degradation efficiency of TC decreased. The initial pH had no significant effect on the degradation of TC. The intermediate products were determined by UV–vis spectrophotometry and ESI (+)–MS, and the degradation mechanism was analyzed. The reactive species, including O3, ·OH, and H2O2, etc., produced in the plasma/catalyst system attracted electron-rich functional groups (amino group, aromatic ring, and double bond). Therefore, the gas–liquid plasma/catalyst system could be an effective and promising method for pharmaceutical wastewater treatment in future.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:1009-0630-23-11-AC1323
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125383]
专题	中国科学院合肥物质科学研究院
通讯作者	CHENG,Cheng
作者单位	1.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China 2.College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China 3.School of Resources & Environmental Engineering, Hefei University of Technology, Hefei 230009, People’s Republic of China 4.Department of Physics and Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, People’s Republic of China
推荐引用方式 GB/T 7714	LIU,Xinghao,CHENG,Cheng,XU,Zimu,et al. Degradation of tetracycline in water by gas–liquid plasma in conjunction with rGO-TiO2 nanocomposite[J]. Plasma Science and Technology,2021,23.
APA	LIU,Xinghao.,CHENG,Cheng.,XU,Zimu.,HU,Shuheng.,SHEN,Jie.,...&CHU,Paul K.(2021).Degradation of tetracycline in water by gas–liquid plasma in conjunction with rGO-TiO2 nanocomposite.Plasma Science and Technology,23.
MLA	LIU,Xinghao,et al."Degradation of tetracycline in water by gas–liquid plasma in conjunction with rGO-TiO2 nanocomposite".Plasma Science and Technology 23(2021).