Detail publikačního výsledku

Comparative study of calcium alginate, activated carbon, and their composite beads on methylene blue adsorption

HASSAN, A.; ABDEL-LATTIF, A.; FOUDA, M.

Originální název

Comparative study of calcium alginate, activated carbon, and their composite beads on methylene blue adsorption

Anglický název

Comparative study of calcium alginate, activated carbon, and their composite beads on methylene blue adsorption

Druh

Článek WoS

Originální abstrakt

Three adsorbents, calcium alginate beads (AB), sodium hydroxide activated carbon based coconut shells(C), and calcium alginate/activated carbon composite beads (ACB) were prepared. Their textural prop-erties were characterized by N2-adsorption at - 196 C and scanning electron microscopy. The porosity,surface area and total pore volume of C > ACB > AB, but AB adsorbent was more acidic function groups morethan the other adsorbents. Adsorption experiments were conducted to examine the effects of adsorbentdosage, pH, time, temperature and initial concentration of methylene blue. Methylene blue adsorptionon C, AB and ACB was observed at pH > 6 to avoid the competition of H+. The amount of dye adsorbedincreases as the adsorbent dosage increase. Adsorption of dye follows pseudo-second order mechanism.Thermodynamic studies show spontaneous and endothermic nature of the overall adsorption process

Anglický abstrakt

Three adsorbents, calcium alginate beads (AB), sodium hydroxide activated carbon based coconut shells(C), and calcium alginate/activated carbon composite beads (ACB) were prepared. Their textural prop-erties were characterized by N2-adsorption at - 196 C and scanning electron microscopy. The porosity,surface area and total pore volume of C > ACB > AB, but AB adsorbent was more acidic function groups morethan the other adsorbents. Adsorption experiments were conducted to examine the effects of adsorbentdosage, pH, time, temperature and initial concentration of methylene blue. Methylene blue adsorptionon C, AB and ACB was observed at pH > 6 to avoid the competition of H+. The amount of dye adsorbedincreases as the adsorbent dosage increase. Adsorption of dye follows pseudo-second order mechanism.Thermodynamic studies show spontaneous and endothermic nature of the overall adsorption process

Klíčová slova

Alginate beads, Composite, Activated carbon, Coconut shells, Methylene bluea

Klíčová slova v angličtině

Alginate beads, Composite, Activated carbon, Coconut shells, Methylene bluea

Autoři

HASSAN, A.; ABDEL-LATTIF, A.; FOUDA, M.

Rok RIV

2015

Vydáno

15.02.2014

ISSN

0144-8617

Periodikum

Carbohydrate Polymers

Svazek

102

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

192

Strany do

198

Strany počet

7

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT103278,
  author="A.F. {Hassan} and Abdelmohsen Moustafa {Abdellatif} and Moustafa M.D. {Fouda}",
  title="Comparative study of calcium alginate, activated carbon, and their composite beads on methylene blue adsorption",
  journal="Carbohydrate Polymers",
  year="2014",
  volume="102",
  number="1",
  pages="192--198",
  doi="10.1016/j.carbpol.2013.10.104",
  issn="0144-8617"
}