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题名:
Polyethylenimine nanofibrous adsorbent for highly effective removal of anionic dyes from aqueous solution
作者: Ma, Y; Zhang, BW; Ma, HJ; Yu, M; Li, LF; Li, JY
刊名: SCIENCE CHINA-MATERIALS
出版日期: 2016
卷号: 59, 期号:1, 页码:38-50
关键词: nanofibrous adsorbent ; anionic dye ; electrospinning ; polyethylenimine
DOI: 10.1007/s40843-016-0117-y
通讯作者: Zhang, BW ; Li, JY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
文章类型: 期刊论文
英文摘要: We prepared a nanofibrous adsorbent for anionic dye removal from aqueous solution by electrospinning a modified polyethylenimine (m-PEI) and polyvinylidene fluoride (PVDF) blend. The electrospun nanofibrous adsorbent was confirmed to be a nanoscale, porous material with a positively charged surface; these characteristics are quite beneficial for anionic contaminant adsorption. Experimental adsorption of an anionic dye, methyl orange (MO), demonstrates that this adsorbent can rapidly remove MO from aqueous solution; its maximum adsorption capacity was 633.3 mg g(-1), which is much higher than that of previously reported adsorbents. After immersion in a basic solution, the adsorbent was well regenerated and showed good recyclability. The adsorption performance of the nanofibrous adsorbent is greatly influenced by the temperature, initial MO concentration, and pH of the solution. We further found that MO adsorption onto the adsorbent can be described well by the pseudo-second-order kinetic model and Langmuir isotherm model. Weber-Morris plots suggested that the adsorption of MO onto the nanofibrous mat was affected by at least film diffusion and intraparticle diffusion. This study indicates that nanofibrous PEI composite mats could be promising for treatment of wastewater containing anionic dye.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000383101200007
ISSN号: 2095-8226
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26598
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Ma, Y,Zhang, BW,Ma, HJ,et al. Polyethylenimine nanofibrous adsorbent for highly effective removal of anionic dyes from aqueous solution[J]. SCIENCE CHINA-MATERIALS,2016-01-01,59(1):38-50.
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