Copper (II) Adsorption onto Sugar Cane Bagasse

Filho, Nelson Consolin; Winkler-hechenleitner, Ana Adelina; Gómez-Pineda, Edgardo A.

doi:10.1080/00914039608031301

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…The Cu (II)-removal capacity of SC-HA/C was larger than those materials prepared from sugarcane bagasse. The Cu (II)-removal capacities were determined to be 4.13~10.64 mg/g for natural sugarcane bagasse [3,5,6,12,13,[39][40][41], 0.19~0.27 mg/g for sugarcane biochar (this study), 1.10~3.81 mg/g for activated carbon (this study), 13.24 mg/g for bagasse-activated carbon [9], 11.87 mg/g for NaOH-modified bagasse [5], 13.34 mg/g for tetraethylenepentaminemodified sugarcane bagasse [3], 5.12~8.24 mg/g for some agricultural residuals [4,6,14], 1.998~16.8 mg/g for natural phosphate rocks [16][17][18], and 10.08 mg/g for carbon nanotube sheets [19].…”

Section: Comparison Of Copper-removal Capacities With Other Materialsmentioning

confidence: 99%

Removal of Copper (II) from Aqueous Solution by a Hierarchical Porous Hydroxylapatite-Biochar Composite Prepared with Sugarcane Top Internode Biotemplate

Cen

Deng

et al. 2022

Water

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Porous hydroxyapatite-biochar composites with layered microstructures (SC–HA/C) were prepared by carbonizing sugarcane stem nodes and then soaking them in lime water and (NH4)2HPO4 solutions in rotation. The surface area of SC–HA/C ranges from 8.52 to 28.44 m2/g, and its microstructure inherits various macro-, meso-, and micro-pores in the cell walls of sugarcane and in the pits of the vessel walls. The maximum removal capacities were 11.50, 14.65, and 19.81 mg/g for the Cu (II) immobilization at 25 °C, 35 °C, and 45 °C with the solution Cu (II) concentration of 10~320 mg/L, respectively, which were in accordance with the copper sorption capacities of synthesized nano-hydroxylapatites. The Cu (II)-removal kinetics and isotherm followed the pseudo-second-order equation and the Langmuir equation very well. The formation of the Cu-containing hydroxylapatite solid solutions ((CuxCa1−x)5(PO4)3(OH)) through adsorption, ion exchange (x = 0.01~0.04), and dissolution-coprecipitation (x = 0.13~0.35) was the dominant process for the Cu (II) removal by the SC–HA/C composite.

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Section: Comparison Of Copper-removal Capacities With Other Materialsmentioning

confidence: 99%

Removal of Copper (II) from Aqueous Solution by a Hierarchical Porous Hydroxylapatite-Biochar Composite Prepared with Sugarcane Top Internode Biotemplate

Cen

Deng

et al. 2022

Water

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“…Copper has a high affinity with several materials, such as HS and lignocelluloses (Consolin-Filho et al 1996). Cu 2?…”

Section: Introductionmentioning

confidence: 99%

Copper (II) adsorption studies using models of synthetic humic acids

Barriquello¹,

Filho²,

Carvalho³

et al. 2009

Environ Chem Lett

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A polymer with characteristics similar to those of humic acids was obtained by synthesis reactions from oxidative polymerization in an alkaline medium using para-benzoquinone, hydroquinone and 4-aminobenzoic acid as precursors. Samples of natural and synthetic humic acid were used to examine the adsorption behavior of Cu 2? ions on these substrates. The mathematical models described by Langmuir and Freundlich equations were applied, yielding the maximum adsorption intensity values K 0 (Langmuir), maximum adsorption capacity, b (Langmuir) and the adsorbent adsorption capacity, m (Freundlich). Based on solubility studies, pH 3 was selected for the development of the adsorption experiment. The Cu 2? ion presented a favorable adsorption, with RL (equilibrium parameter) responses in Langmuir isotherms falling within the desirable ranges.

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Heavy metal ion removal by amidoximated bagasse

Hassan

El-Wakil

2002

J of Applied Polymer Sci

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Amidoximated bagasse (Am-B) was prepared by treating sugarcane bagasse fibers with acrylonitrile in the presence of sodium hydroxide followed by aqueous hydroxyl amine. Adsorption of some heavy metal ions, namely, Cu(II), Hg(II), Ni(II), Cr(III), and Pb(II) on the prepared Am-B at different metal ion concentration, intervals, and temperatures was studied. Also, the selectivity of the prepared Am-B toward adsorption of the aforementioned metal ions in an equimolar mixture was studied. The effect of regeneration of Am-B using ethylenediamine tetraacetic acid disodium salt (EDTA), up to five times, on its adsorption capacity of the aforementioned metal ions was investigated.

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Copper (II) Adsorption onto Sugar Cane Bagasse

Cited by 7 publications

References 8 publications

Removal of Copper (II) from Aqueous Solution by a Hierarchical Porous Hydroxylapatite-Biochar Composite Prepared with Sugarcane Top Internode Biotemplate

Removal of Copper (II) from Aqueous Solution by a Hierarchical Porous Hydroxylapatite-Biochar Composite Prepared with Sugarcane Top Internode Biotemplate

Copper (II) adsorption studies using models of synthetic humic acids

Heavy metal ion removal by amidoximated bagasse

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