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HASSAN, A. ABDEL-LATTIF, A. FOUDA, M.
Original Title
Comparative study of calcium alginate, activated carbon, and their composite beads on methylene blue adsorption
Type
journal article in Web of Science
Language
English
Original Abstract
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
Keywords
Alginate beads, Composite, Activated carbon, Coconut shells, Methylene bluea
Authors
HASSAN, A.; ABDEL-LATTIF, A.; FOUDA, M.
RIV year
2014
Released
15. 2. 2014
ISBN
0144-8617
Periodical
Carbohydrate Polymers
Year of study
102
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
192
Pages to
198
Pages count
7
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" }