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DOI:	10.1371/journal.pone.0108647
论文题名:	Preparation, Characterization and Application of Magnetic Fe3O4-CS for the Adsorption of Orange I from Aqueous Solutions
作者:	Yankai Du; Meishan Pei; Youjun He; Faqi Yu; Wenjuan Guo; Luyan Wang
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-10-1
卷:	9, 期:10
语种:	英语
英文关键词:	Adsorption ; Isotherms ; Aqueous solutions ; Water pollution ; Scanning electron microscopy ; Chemical equilibrium ; Vibration ; Amines
英文摘要:	Fe3O4 (Fe3O4-CS) coated with magnetic chitosan was prepared as an adsorbent for the removal of Orange I from aqueous solutions and characterized by FTIR, XRD, SEM, TEM and TGA measurements. The effects of pH, initial concentration and contact time on the adsorption of Orange I from aqueous solutions were investigated. The decoloration rate was higher than 94% in the initial concentration range of 50–150 mg L−1 at pH 2.0. The maximum adsorption amount was 183.2 mg g−1 and was obtained at an initial concentration of 400 mg L−1 at pH 2.0. The adsorption equilibrium was reached in 30 minutes, demonstrating that the obtained adsorbent has the potential for practical application. The equilibrium adsorption isotherm was analyzed by the Freundlich and Langmuir models, and the adsorption kinetics were analyzed by the pseudo-first-order and pseudo-second-order kinetic models. The higher linear correlation coefficients showed that the Langmuir model (R2 = 0.9995) and pseudo-second-order model (R2 = 0.9561) offered the better fits.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0108647&type=printable
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资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18552
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0108647.PDF（2970KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong Province, China;School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong Province, China;School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong Province, China;School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong Province, China;School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong Province, China;School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong Province, China

Recommended Citation:

Yankai Du,Meishan Pei,Youjun He,et al. Preparation, Characterization and Application of Magnetic Fe3O4-CS for the Adsorption of Orange I from Aqueous Solutions[J]. PLOS ONE,2014-01-01,9(10)

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