QQ客服 官方微博 反馈留言

	Surface modification of Penicillium chrysogenum mycelium for enhanced anionic dye removal
	Low, Bee-Ting ; Ting, Yen-Peng ; Deng, Shubo
	2010-05-10 ; 2010-05-10
关键词	Penicillium chrysogenum anionic dyes PEI-modified biomass regeneration CORYNEBACTERIUM-GLUTAMICUM RHIZOPUS-ARRHIZUS REACTIVE BLACK-5 ACTIVATED CARBON AQUEOUS-SOLUTION WASTE BIOMASS TEXTILE DYES BIOSORPTION DECOLORIZATION ADSORPTION Engineering, Chemical
中文摘要	Dead Penicillium chrysogenum mycelium was used for the removal of three anionic dyes: acid orange 8 (AO8), acid blue 45 (AB45) and reactive orange 16 (RO16). The biomass surface was modified with polyethylenimine (PEI) and cross-linked with glutaraldehyde for enhanced anionic dye sorption. The sorption of dyes by both pristine and modified biomass was favored at lower pH, due to the electrostatic interactions between the dye anions and the protonated amine groups on the biomass. The effect of temperature over the range 30-70 degrees C on the sorption capacity was not significant. Compared to the pristine biomass, the maximum sorption capacity of the surface-modified biomass for AO8, AB45 and RO16 increased from 33, 18 and 25 mg/g, respectively to 352, 196 and 338 mg/g, respectively. Dye sorption using the pristine and modified biomass was well described by the Freundlich and Langmuir isotherm, respectively. FTIR analysis showed that PEI was grafted on the biomass surface via interactions with the amine groups on the pristine biomass. Regeneration of the PEI-modified biomass using AO8 as the adsorbate showed that the biomass could be used repeatedly up to seven cycles with negligible loss in dye removal efficiency. (C) 2007 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/23422]
专题	清华大学
推荐引用方式 GB/T 7714	Low, Bee-Ting,Ting, Yen-Peng,Deng, Shubo. Surface modification of Penicillium chrysogenum mycelium for enhanced anionic dye removal[J],2010, 2010.
APA	Low, Bee-Ting,Ting, Yen-Peng,&Deng, Shubo.(2010).Surface modification of Penicillium chrysogenum mycelium for enhanced anionic dye removal..
MLA	Low, Bee-Ting,et al."Surface modification of Penicillium chrysogenum mycelium for enhanced anionic dye removal".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。