DocumentCode
3336453
Title
Notice of Retraction
Adsorption and Desorption of Cr(III) on a Spherical Cellulose Adsorbent
Author
Ruoqi Chen ; Yifan Liu ; Minghua Liu ; Yang Zhao
Author_Institution
Fujian Provincial Technol. Exploitation Base of Biomass Resources, Fuzhou Univ., Fuzhou, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
An investigation was conducted on adsorption and desorption of Cr(III) with a new spherical cellulose adsorbent containing the carboxymethyl group by using static and dynamic methods. The static experiments showed that the adsorption of Cr(III) on adsorbent was pH, adsorption temperature, initial concentration and adsorption time dependent. The adsorption process followed both Langmuir and Freundlich adsorption isotherms. The dynamic process was highly flow rate dependent. Moreover, the adsorption capacity and adsorption percentage were 21.44 mg/g and 91.0% from dynamic way, respectively. The Cr(III) adsorbed can be recovered with NaOH solution. Additionally, the maximum desorption percentage of Cr(III) was 94.5% using a 2.0 mol/l NaOH aqueous solution from static and dynamic methods. Only 3.6% of adsorption capacity decreased after 20 cycles of re adsorption and desorption. The spherical cellulose adsorbent is demonstrated to be an effective adsorbent for recovery of Cr(III) from aqueous solutions.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
An investigation was conducted on adsorption and desorption of Cr(III) with a new spherical cellulose adsorbent containing the carboxymethyl group by using static and dynamic methods. The static experiments showed that the adsorption of Cr(III) on adsorbent was pH, adsorption temperature, initial concentration and adsorption time dependent. The adsorption process followed both Langmuir and Freundlich adsorption isotherms. The dynamic process was highly flow rate dependent. Moreover, the adsorption capacity and adsorption percentage were 21.44 mg/g and 91.0% from dynamic way, respectively. The Cr(III) adsorbed can be recovered with NaOH solution. Additionally, the maximum desorption percentage of Cr(III) was 94.5% using a 2.0 mol/l NaOH aqueous solution from static and dynamic methods. Only 3.6% of adsorption capacity decreased after 20 cycles of re adsorption and desorption. The spherical cellulose adsorbent is demonstrated to be an effective adsorbent for recovery of Cr(III) from aqueous solutions.
Keywords
adsorption; chromium; desorption; wastewater treatment; Cr; Freundlich adsorption isotherms; Langmuir adsorption isotherms; carboxymethyl group; chromium adsorption; chromium desorption; chromium recovery; spherical cellulose adsorbent; Chemicals; Chromium; Effluents; Instruments; Ions; Wastewater;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5781032
Filename
5781032
Link To Document