NDLI: Adsorption behavior of chromium(VI) on activated carbon from eucalyptus sawdust prepared by microwave-assisted activation with ZnCl2

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Adsorption behavior of chromium(VI) on activated carbon from eucalyptus sawdust prepared by microwave-assisted activation with ZnCl2

Content Provider	Semantic Scholar
Author	Chen, Congjin Zhao, Pengcheng Li, Zhixia Tong, Zhangfa
Copyright Year	2016
Abstract	AbstractActivated carbon (AC) was prepared from eucalyptus sawdust by microwave-assisted activation with ZnCl2 and utilized for removing chromium(VI) from an aqueous solution with a concentration of 10–80 mg L−1 and a temperature of 30–60°C. The effects of pH, contact time, initial concentration of Cr(VI) and temperature on adsorption, as well as the thermodynamics and kinetics were investigated. The results were as follows: (1) The adsorption capacity of Cr(VI) was dependent on pH and initial concentration as the equilibrium time increased, but the Cr(VI) removal percentage decreased with an increase in the initial Cr(VI) concentration; (2) The adsorption process was in good agreement with the Langmuir adsorption isotherm model at 30°C and the Freundlich adsorption isotherm model at 45 and 60°C; (3) Adsorption thermodynamic parameters ΔH°, ΔS°, and ΔG° indicated that Cr(VI) adsorption on AC was a spontaneous and endothermic process with increased randomness at the solid–solution interface; (4) Cr(VI) ads...
Starting Page	12572
Ending Page	12584
Page Count	13
File Format	PDF HTM / HTML
DOI	10.1080/19443994.2015.1049960
Volume Number	57
Alternate Webpage(s)	http://www.deswater.com/DWT_abstracts/vol_57_27/57_27_2016_12572.pdf
Alternate Webpage(s)	http://hxhg.gxu.edu.cn/ammnp/uploads/articles/2015/6-Adsorption%20behavior%20of%20chromium(VI)%20on%20activated%20carbonfrom%20eucalyptus%20sawdust%20prepared%20by%20microwave-assisted%20activation%20withZnCl2.pdf
Alternate Webpage(s)	https://doi.org/10.1080/19443994.2015.1049960
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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