Modified activated carbon cloth is prepared by mechanochemical modification of viscose rayon carbon cloth. The effects of different milling atmospheres, in the air and inert conditions, were investigated. Changes in kind and number of acidic and basic surface groups on the surface of activated carbon cloth, upon modification, as well as before and after the sorption of arsenic were determined. Higher number of basic groups responsible for the removal of arsenic ions was achieved by modification under inert conditions. Breakage and collapse of cylindrical fibers, decrease of particle sizes, change in the shape and consistency of the particles, as well as increase of microstructural disorder i.e. the loss of turbostratic structure occurred upon milling. pHPZC values increased from 4.46 to 5.04 and 5.77 after the air and inert milling, respectively. Adsorption followed pseudo second order kinetics with chemisorption as rate-controlling step. Langmuir isotherm best fit the equilibrium data... and maximum adsorption capacity is 5.5 mg g−1 at a pH value close to 7.0, typical for groundwater. The mechanism of arsenic adsorption onto activated carbon cloth milled in inert atmosphere involved electrostatic and dispersive interactions between arsenic ions and carbon particles in wide pH range (from 2 to 10).
TY - JOUR
AU - Matović, Ljiljana
AU - Vukelić, Nikola
AU - Jovanović, Uroš D.
AU - Kumrić, Ksenija
AU - Krstić, Jugoslav
AU - Babić, Biljana M.
AU - Đukić, Anđelka B.
PY - 2019
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3858
AB - Modified activated carbon cloth is prepared by mechanochemical modification of viscose rayon carbon cloth. The effects of different milling atmospheres, in the air and inert conditions, were investigated. Changes in kind and number of acidic and basic surface groups on the surface of activated carbon cloth, upon modification, as well as before and after the sorption of arsenic were determined. Higher number of basic groups responsible for the removal of arsenic ions was achieved by modification under inert conditions. Breakage and collapse of cylindrical fibers, decrease of particle sizes, change in the shape and consistency of the particles, as well as increase of microstructural disorder i.e. the loss of turbostratic structure occurred upon milling. pHPZC values increased from 4.46 to 5.04 and 5.77 after the air and inert milling, respectively. Adsorption followed pseudo second order kinetics with chemisorption as rate-controlling step. Langmuir isotherm best fit the equilibrium data and maximum adsorption capacity is 5.5 mg g−1 at a pH value close to 7.0, typical for groundwater. The mechanism of arsenic adsorption onto activated carbon cloth milled in inert atmosphere involved electrostatic and dispersive interactions between arsenic ions and carbon particles in wide pH range (from 2 to 10).
PB - Elsevier
T2 - Arabian Journal of Chemistry
T1 - Mechanochemically improved surface properties of activated carbon cloth for the removal of As(V) from aqueous solutions
VL - 12
IS - 8
SP - 4446
EP - 4457
DO - 10.1016/j.arabjc.2016.07.004
ER -
@article{
author = "Matović, Ljiljana and Vukelić, Nikola and Jovanović, Uroš D. and Kumrić, Ksenija and Krstić, Jugoslav and Babić, Biljana M. and Đukić, Anđelka B.",
year = "2019",
abstract = "Modified activated carbon cloth is prepared by mechanochemical modification of viscose rayon carbon cloth. The effects of different milling atmospheres, in the air and inert conditions, were investigated. Changes in kind and number of acidic and basic surface groups on the surface of activated carbon cloth, upon modification, as well as before and after the sorption of arsenic were determined. Higher number of basic groups responsible for the removal of arsenic ions was achieved by modification under inert conditions. Breakage and collapse of cylindrical fibers, decrease of particle sizes, change in the shape and consistency of the particles, as well as increase of microstructural disorder i.e. the loss of turbostratic structure occurred upon milling. pHPZC values increased from 4.46 to 5.04 and 5.77 after the air and inert milling, respectively. Adsorption followed pseudo second order kinetics with chemisorption as rate-controlling step. Langmuir isotherm best fit the equilibrium data and maximum adsorption capacity is 5.5 mg g−1 at a pH value close to 7.0, typical for groundwater. The mechanism of arsenic adsorption onto activated carbon cloth milled in inert atmosphere involved electrostatic and dispersive interactions between arsenic ions and carbon particles in wide pH range (from 2 to 10).",
publisher = "Elsevier",
journal = "Arabian Journal of Chemistry",
title = "Mechanochemically improved surface properties of activated carbon cloth for the removal of As(V) from aqueous solutions",
volume = "12",
number = "8",
pages = "4446-4457",
doi = "10.1016/j.arabjc.2016.07.004"
}
Matović, L., Vukelić, N., Jovanović, U. D., Kumrić, K., Krstić, J., Babić, B. M.,& Đukić, A. B.. (2019). Mechanochemically improved surface properties of activated carbon cloth for the removal of As(V) from aqueous solutions. in Arabian Journal of Chemistry
Elsevier., 12(8), 4446-4457.
https://doi.org/10.1016/j.arabjc.2016.07.004
Matović L, Vukelić N, Jovanović UD, Kumrić K, Krstić J, Babić BM, Đukić AB. Mechanochemically improved surface properties of activated carbon cloth for the removal of As(V) from aqueous solutions. in Arabian Journal of Chemistry. 2019;12(8):4446-4457.
doi:10.1016/j.arabjc.2016.07.004 .
Matović, Ljiljana, Vukelić, Nikola, Jovanović, Uroš D., Kumrić, Ksenija, Krstić, Jugoslav, Babić, Biljana M., Đukić, Anđelka B., "Mechanochemically improved surface properties of activated carbon cloth for the removal of As(V) from aqueous solutions" in Arabian Journal of Chemistry, 12, no. 8 (2019):4446-4457,
https://doi.org/10.1016/j.arabjc.2016.07.004 . .
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