A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway

doi:10.3390/catal10020189

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	A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway
	Zhang, Ting 1; Qian, Chunyuan 1; Guo, Pengran 2; Gan, Shuchai 2; Dong, Lingyu 1; Bai, Ge 1; Guo, Qiyang 1
刊名	CATALYSTS
	2020-02
卷号	10 期号:2
关键词	graphene ciprofloxacin catalytic degradation hydroxyl oxidation
DOI	10.3390/catal10020189
英文摘要	Ciprofloxacin, a third-generation fluoroquinolones (FQs) antibiotic, is observed to increasingly pollute the environment. In this study, a three-dimensional reduced graphene oxide-attapulgite-based catalyst Fe2O3/RGO-ATP was prepared and used to analyze the degradation of ciprofloxacin in a heterogeneous Fenton reaction. The heterogeneous catalyst Fe2O3/RGO-ATP was prepared by a one-step hydrothermal method, and the samples were characterized using BET(Brunauer-Emmett-Teller) surface area, Raman spectroscopy, X-ray diffraction (XRD), Fourier infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The effect of reaction time, temperature, pH, initial concentration, H2O2 dosage and reuse time on the degradation of ciprofloxacin by the catalyst Fe2O3/RGO-ATP was investigated. The optimum conditions of degradation of ciprofloxacin are observed to be 60 degrees C, pH 5, H2O2 concentration of 2.9724 mmol/L, and initial ciprofloxacin concentration of 50 mg/L. The catalyst could be reused several times with a decline in catalytic capacity. Fourier-transform ion cyclotron resonance mass spectrometer (FT) was also employed to study the degradation products of ciprofloxacin in the aqueous solution. The results show that the heterogeneous catalyst Fe2O3/RGO-ATP possessed an excellent ability for the catalytic degradation of ciprofloxacin. Direct hydroxyl oxidation is noted to be the main pathway of degradation of ciprofloxacin, and no defluorination reaction is observed during the degradation process.
资助项目	National Natural Science Foundation of China[51302123] ; Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals[KF2018001]
WOS研究方向	Chemistry
语种	英语
出版者	MDPI
WOS记录号	WOS:000519998900047
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/64158]
专题	石油化工学院
通讯作者	Zhang, Ting
作者单位	1.Lanzhou Univ Technol, Dept Petrochem Engn, Lanzhou 730050, Peoples R China 2.Guangdong Inst Anal, Guangdong Engn & Technol Res Ctr Online Monitorin, Guangdong Prov Key Lab Emergency Test Dangerous C, Guangzhou 510000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ting,Qian, Chunyuan,Guo, Pengran,et al. A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway[J]. CATALYSTS,2020,10(2).
APA	Zhang, Ting.,Qian, Chunyuan.,Guo, Pengran.,Gan, Shuchai.,Dong, Lingyu.,...&Guo, Qiyang.(2020).A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway.CATALYSTS,10(2).
MLA	Zhang, Ting,et al."A Novel Reduced Graphene Oxide-Attapulgite (RGO-ATP) Supported Fe2O3 Catalyst for Heterogeneous Fenton-like Oxidation of Ciprofloxacin: Degradation Mechanism and Pathway".CATALYSTS 10.2(2020).