Hai WANG, Ningcan YANG, Muqing QIU. Adsorption of Cr(VI) from Aqueous Solution by Biochar-clay Derived from Clay and Peanut Shell [J]. Journal of Inorganic Materials, 2020, 35(3): 301

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- Journal of Inorganic Materials
- Vol. 35, Issue 3, 301 (2020)

. SEM images of the Biochar@Kaolin and Biochar@Bentonite before and after the reaction with Cr(VI)

. TEM images of the Biochar@Kaolin and Biochar@Bentonite before and after the reaction with Cr(VI)

. EDS spectra of the Biochar@Kaolin and Biochar@Bentonite before and after the reaction with Cr(VI)

. XRD patterns of Biochar, Biochar@Kaolin and Biochar@Bentonite

. FT-IR spectra of Biochar, Kaolin, Bentonite, Biochar@Kaolin and Biochar@Bentonite

. XPS spectra of Biochar@Kaolin (a) and Biochar@Bentonite (b)

. Effect of pH on the removal of Cr (VI) by the Biochar@Kaolin (a) and Biochar@Bentonite (b)

. Effect of SO42- on the removal of Cr (VI) by the Biochar@Kaolin (a) and Biochar@Bentonite (b)

. Adsorption data and modeling for Cr(VI) ions removal by Biochar, Biochar@Kaolin and Biochar@Bentonite, respectively
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Table 1.
Characterizations of Biochar, Biochar@Kaolin and Biochar@Bentonite
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Table 2.
Pseudo-first order kinetic and pseudo-second order kinetic parameters of Cr(VI) ions removal by Biochar, Biochar@Kaolin and Biochar@Bentonite
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Table 3.
Parameters of adsorption isotherms for Cr(VI) ions removal by Biochar, Biochar@Kaolin and Biochar@Bentonite at 20, 30 and 40 ℃, respectively

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