Natural graphite tailings as heterogeneous Fenton catalyst for the decolorization of rhodamine B

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 材料生物技术研究中心

	Natural graphite tailings as heterogeneous Fenton catalyst for the decolorization of rhodamine B
	Bai Cuiping 1,2; Gong Wenqi 1; Feng Dexin 2; Xian Mo2 ; Zhou Qi 1; Chen Shaohua 1; Ge Zhongxue 3; Zhou Yanshui 3
刊名	CHEMICAL ENGINEERING JOURNAL
	2012-07-15
卷号	197 期号:197 页码:306-313
关键词	Graphite tailing Heterogeneous Fenton process Rhodamine B
英文摘要	A heterogeneous Fenton decolorization process of rhodamine B in aqueous solution promoted by graphite tailing (GT) was developed. For the first time, GT was used as an initiator for the Fenton reaction. The GT used in this study was characterized by X-ray diffraction (XRD), energy dispersive spectrometry (EDS) and Brunauer-Emmett-Teller (BET) method. The mesoporous structure of the GT made it as an absorbent and the encapsulated Fe2O3 in GT was able to initiate the Fenton reaction. The effects of the initial concentration of the dye, the initial concentration of H2O2, catalyst dosage, reaction temperature, stirring speed, particle size of catalyst and the pH value were determined. The results showed that the increase of catalyst dosage, initial concentration of H2O2, reaction temperature and stirring speed favor the increase of decolorization rate. The increase of initial concentration of the dye and the particle size of catalyst lead to the decrease of decolorization rate and the optimum pH was the original pH of rhodamine B solution. Under the optimal condition, the decolorization and TOC removal rates were 93.39% and 49.02% respectively after 240 min treatment. The release of the iron ion from GT is very little and the intermediates of rhodamine B degradation will not cause the wavelength shift of rhodamine B. The kinetic results showed that the decolorization and degradation of rhodamine B obeyed the pseudo-first order equation. (C) 2012 Elsevier B.V. All rights reserved.
学科主题	生物基化学品
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	ORANGE-II ; PHOTOCATALYTIC DEGRADATION ; AQUEOUS-SOLUTION ; CRYSTAL VIOLET ; OXIDATION ; PHOTODECOLORIZATION ; ZEOLITE ; ACID ; MINERALIZATION ; ENHANCEMENT
收录类别	SCI
语种	英语
WOS记录号	WOS:000306938000035
公开日期	2014-03-27
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn:8080/handle/337004/1746]
专题	青岛生物能源与过程研究所_材料生物技术研究中心
作者单位	1.Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Xian Modern Chem Res Inst, Xian 710065, Peoples R China
推荐引用方式 GB/T 7714	Bai Cuiping,Gong Wenqi,Feng Dexin,et al. Natural graphite tailings as heterogeneous Fenton catalyst for the decolorization of rhodamine B[J]. CHEMICAL ENGINEERING JOURNAL,2012,197(197):306-313.
APA	Bai Cuiping.,Gong Wenqi.,Feng Dexin.,Xian Mo.,Zhou Qi.,...&Zhou Yanshui.(2012).Natural graphite tailings as heterogeneous Fenton catalyst for the decolorization of rhodamine B.CHEMICAL ENGINEERING JOURNAL,197(197),306-313.
MLA	Bai Cuiping,et al."Natural graphite tailings as heterogeneous Fenton catalyst for the decolorization of rhodamine B".CHEMICAL ENGINEERING JOURNAL 197.197(2012):306-313.