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题名: Sorption enhancement of TBBPA from water by fly ash-supported nanostructured gamma-MnO2
其他题名: Sorption enhancement of TBBPA from water by fly ash-supported nanostructured γ-MnO2
作者: Zhang, Y; Jing, LY; He, XH; Li, YF(李彦锋); Ma, X
收录类别: SCIE ; EI
出版日期: 2015-01-25
刊名: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷号: 21, 页码:610-619
英文摘要: Tetrabromobisphenol A (TBBPA), an emerging contaminant, has been detected frequently in the environmental media. This study reports the adsorption kinetics, equilibrium and thermodynamics of TBBPA on fly ash modified by nanostructured MnO2 (FA@nM). The resulting nano-adsorbent was characterized by means of the Fourier transform infrared spectra (FT-IR), XRD and scanning electron microscope (SEM). The adsorption results showed that the equilibrium adsorption capacity has been significantly improved by increasing the initial TBBPA concentration and contact time. While a large reduction of TBBPA uptake was observed in alkaline conditions and at high temperatures and ionic strength. The equilibrium between TBBPA and FA@nM was achieved in approximately 40 mm with removal of 98% of the TBBPA. The sorption kinetics were well described by a pseudo-first-order rate model, while both Langmuir and Freundlich models described the sorption isotherms well at 298 K. Thermodynamic parameters suggested that the adsorption of TBBPA is exothermic and spontaneous at the temperatures studied. As fly ash is a low-cost material that is often available on-site, it offers an interesting alternative to high-cost advanced wastewater treatment systems for removing such organic pollutants. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
关键词: TBBPA ; Fly ash ; Nanostructured MnO2 ; Adsorption mechanism
作者部门: [Zhang, Yun ; He, Xinghua ; Li, Yanfeng ; Ma, Xin] Lanzhou Univ, Coll Chem & Chem Engn, Inst Biochem Engn & Environm Technol, Lanzhou 730000, Peoples R China ; [Jing, Lingyun] Lanzhou Univ, Coll Resources & Environm Sci, Lanzhou 730000, Peoples R China
通讯作者: Zhang, Y (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Inst Biochem Engn & Environm Technol, Lanzhou 730000, Peoples R China.
学科分类: Chemistry; Engineering
文章类型: Article
所属项目编号: National Natural Science Foundation of China [21304040] ; Chinese Postdoctoral Funds [2013M532090]
所属项目名称: 国家自然科学基金项目 ; 中国博士后科学基金
项目资助者: NSFC ; CPSF
语种: 英语
DOI: 10.1016/j.jiec.2014.03.027
ISSN号: 1226-086X
WOS记录号: WOS:000350079800081
EI记录号: 20143600057732
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/126504
Appears in Collections:化学化工学院_期刊论文

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Recommended Citation:
Zhang, Y,Jing, LY,He, XH,et al. Sorption enhancement of TBBPA from water by fly ash-supported nanostructured gamma-MnO2[J]. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,2015,21:610-619.
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