Simultaneous degradation of trace antibiotics in water by adsorption and catalytic oxidation induced by N-doped reduced graphene oxide (N-rGO): synergistic mechanism

doi:10.1088/2053-1591/ac7284

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Simultaneous degradation of trace antibiotics in water by adsorption and catalytic oxidation induced by N-doped reduced graphene oxide (N-rGO): synergistic mechanism
	Wu, Nan 4,5; Zhang, Xuemin 1,4,5; Zhang, Xue 3; Yang, Kai 4,5; Li, Yanjuan 2
刊名	MATERIALS RESEARCH EXPRESS
	2022-06-01
卷号	9 期号:6
关键词	trace antibiotics N-doped graphene adsorption catalytic oxidation synergistic mechanism
DOI	10.1088/2053-1591/ac7284
英文摘要	Aimed at current difficulties in the treatment of trace antibiotics in water, an adsorption-catalytic oxidation system was established by combining persulfate and graphene, which have the dual functions of adsorption and catalysis, for simultaneous enrichment and degradation of trace antibiotics in water. The experimental results showed that over 90% sulfamethoxazole could be degraded by the proposed system. The activation energy of the proposed system was 7.9 kJ mol(-1), which was significantly lower than those of typical Co catalysts and some carbon-based catalysts. Synergistic effect analysis revealed that catalytic oxidation was the key degradation kinetic of the proposed system, while adsorption showed a significant enhancement effect. Specifically, a compound with large adsorption capacity tended to be degraded preferably and rapidly. Characterization results indicated that N atoms were doped into the graphene framework, resulting in significant impacts on the activation process of potassium bisulfate by activating the sp(2) C system. Quenching and free radical trapping experiments revealed that degradation catalyzed by the proposed system was a non-free radical oxidation reaction dominated by singlet oxygen. In summary, the proposed design was rational, N-rGO surface provided good adsorption and catalysis sites, the synergistic effect of adsorption and catalytic oxidation led to rapid and effective enrichment and in situ degradation of trace antibiotics in water.
WOS研究方向	Materials Science
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000805640200001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158688]
专题	土木工程学院
作者单位	1.Minist Educ, Engn Res Ctr Cold & Arid Reg Water Resource Compr, Lanzhou 730070, Peoples R China; 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730000, Peoples R China 3.Lanzhou Petrochem Univ Vocat Technol, Sch Petrochem Engn, Lanzhou 730060, Peoples R China; 4.Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Peoples R China; 5.Lanzhou Jiaotong Univ, Key Lab Yellow River Water Environm Gansu Prov, Lanzhou 730070, Peoples R China;
推荐引用方式 GB/T 7714	Wu, Nan,Zhang, Xuemin,Zhang, Xue,et al. Simultaneous degradation of trace antibiotics in water by adsorption and catalytic oxidation induced by N-doped reduced graphene oxide (N-rGO): synergistic mechanism[J]. MATERIALS RESEARCH EXPRESS,2022,9(6).
APA	Wu, Nan,Zhang, Xuemin,Zhang, Xue,Yang, Kai,&Li, Yanjuan.(2022).Simultaneous degradation of trace antibiotics in water by adsorption and catalytic oxidation induced by N-doped reduced graphene oxide (N-rGO): synergistic mechanism.MATERIALS RESEARCH EXPRESS,9(6).
MLA	Wu, Nan,et al."Simultaneous degradation of trace antibiotics in water by adsorption and catalytic oxidation induced by N-doped reduced graphene oxide (N-rGO): synergistic mechanism".MATERIALS RESEARCH EXPRESS 9.6(2022).