Removal of Cu(II), Pb(II), and Ni(II) by Adsorption onto Activated Carbon Cloths
By K. Kadirvelu, and C. Faur-Brasquet, P. Cloirec. 2000
435 citations recorded by the source corpus.
The adsorption of three metal ions, Cu(II), Ni(II), and Pb(II), is performed by activated carbon cloths (ACC). Two adsorbents, CS 1501 (with more than 96% of micropore volume) and RS 1301 (with 32% of mesopore volume), are studied. Batch experiments are carried out to assess kinetic and equilibrium parameters. They allow kinetic data, transfer coefficients, and maximum adsorption capacities to be computed. These parameters show the fast external film transfer of metal ions on fibers, because of their low diameter (10 μm). Intraparticular diffusion coefficients are lower than those obtained with a granular activated carbon, but maximum adsorption capacities agree with literature values for GAC. They show the dependency of adsorption on metal ion size and ACC porosity, the largest cation Pb(II) being more adsorbed by the mesoporous cloth. The pH effect is studied, and pH adsorption edges are determined. They are short, only 2 pH units, and located below the precipitation edges. A decrease of equilibrium pH ...
Subfields: Analytical Chemistry, Biomedical Engineering, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/337d8678b74692fc2e86accedfb44486547475b8
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In Analytical Chemistry
In Biomedical Engineering
- P. Cloirec
- M. Traisnel
- M. Jiménez
- M. Vandenbossche
- Zhengang Liu
- M. Casetta
- Fu-Shen Zhang
- R. Balasubramanian
In Water Science and Technology
Citations in the corpus
- Adsorption capacity and removal efficiency of heavy metal ions by Moso and Ma bamboo activated carbons (2012, background): “When activated carbon prepared from apricot stone with a pH value ranging from 1 to 6 was used, the adsorption capacity decreased from 34.70 to 7.86 mg/g for Cr6+; whereas, the adsorption capacity increased from 7.74 to 30.07 mg/g for Cd2+, from 2.83 to 29.47 mg/g for Cr3+, from 2.51 to 27.21 mg/g f”
- Production of fibrous activated carbons from natural cellulose (jute, coconut) fibers for water treatment applications (2006, background): “Furthermore, the fact that raw fibers are more efficient than carbonized or physically activated fibers for Cu removal may be due to the great influence of carboxylic –COOH surface groups on the removal of metal cations by ion-exchange, as demonstrated by different studies [24,44].”
- Remediation of Heavy Metals by Biomolecules: A Review (2015, result): “Recent studies were carried out on the regeneration of adsorbent materials, and interesting results were obtained (Hu et al., 2005; Kadirvelu et al., 2000; Mata et al., 2010).”