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Notice of Retraction
Surface properties of a modified bamboo-based activated carbon and study on its absorption mechanism of Cr(VI)

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3 Author(s)
Gong Ying ; Coll. of Environ. Sci. & Eng., Hohai Univ., Nanjing, China ; Wu Jun-Ming ; Huang Zhao-Yi

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.

In order to improve the effect of bamboo-based activated carbons (BAC)on chromium(VI) reduction, this paper used nitric acid to modify BAC, and investigated the absorption mechanism of Cr(VI) by modified BAC. In this experiment, Bamboo-based activated carbon was modified by nitric acid at four different concentrations. After modification, the surface properties were determined by SEM, QUANTACHROME and FTIR, then the excellent one was selected and the absorption experiment was carried out to analyze the mechanism of absorption of Cr(VI). The results are threefold. First, the microporous structures and surface chemical properties of BACs modified by surface acidic oxides change differently, while the excellent one was modified by nitric acid at 3.0mol/L concentration; second, the hydration of modified BACs and Cr(VI) depend on the values of pH in aqueous solutions; third, the reaction between the chromate species and the functional groups at the surface of BACs depends on hydrogen bonds.

Published in:

Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on  (Volume:4 )

Date of Conference:

17-18 July 2010

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