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REVISTA DE CHIMIE
https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie, Volume 69, Issue 1, pp. 191-195 (2018)
https://doi.org/10.37358/RC.18.1.6072

Elena Radu, Elena Emilia Oprescu, Cristina Emanuela Enascuta, Catalina Calin, Rusandica Stoica, Gina Vasile Scaeteanu, Gabriel Vasilievici, Luiza Capra, Georgeta Ivan, Alina Catrinel Ion

Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets

Abstract:

The dehydration of polysaccharides fraction in the presence of acid catalysts, is a chemical process in which results as secondary product humic matter. In our work, the humic acid mixture was for the first time based on our knowledge extracted from defatted microalgae biomass rich in polysaccharides by standard alkali treatment, followed by precipitation at acidic pH. The dried humic acid mixture has been characterized using infrared spectroscopic measurements (FT-IR). Exfoliated graphite nanoplatelets (xGnP) were used as new adsorbents for this type of humic acids mixture, their adsorption being investigated. The effect of several parameters such as: contact time, concentration of humic acid mixture, concentration of xGnP, temperature and pH of the solutions were studied. The process of adsorption took place with good results, in the following conditions: at a concentration of humic acid mixture of 18.6 mg L-1, an xGnP amount of 0.01 mg in 25 mL of solution, at a temperature of 25 °Ñ and at acidic pH values, in aqueous solution.
Keywords:
defatted algal biomass; polysaccharides; humic acids mixture; exfoliated graphite nanoplatelets; adsorption

Issue: 2018 Volume 69, Number 1
Pages: 191-195
https://doi.org/10.37358/RC.18.1.6072
download pdf   Download Pdf Article
Citation Styles
Cite this article as:
RADU, E., OPRESCU, E.E., ENASCUTA, C.E., CALIN, C., STOICA, R., SCAETEANU, G.V., VASILIEVICI, G., CAPRA, L., IVAN, G., ION, A.C., Rev.Chim., 69, no. 1, 2018, p. 191

Vancouver
Radu E, Oprescu EE, Enascuta CE, Calin C, Stoica R, Scaeteanu GV, Vasilievici G, Capra L, Ivan G, Ion AC. Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets. REV.CHIM.[internet]. 2018 Jan;69(1):191-195. Available from: https://doi.org/10.37358/RC.18.1.6072


APA 6th edition
Radu, E., Oprescu, E.E., Enascuta, C.E., Calin, C., Stoica, R., Scaeteanu, G.V.,... Ion, A.C. (2018). Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets. Revista de Chimie, 69(1), 191-195. https://doi.org/10.37358/RC.18.1.6072


Harvard
Radu, E., Oprescu, E.E., Enascuta, C.E., Calin, C., Stoica, R., Scaeteanu, G.V., Vasilievici, G., Capra, L., Ivan, G., Ion, A.C. (2018). 'Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets', Revista de Chimie, 69(1), pp. 191-195. https://doi.org/10.37358/RC.18.1.6072


IEEE
E. Radu, E.E. Oprescu, C.E. Enascuta, C. Calin, R. Stoica, G.V. Scaeteanu, G. Vasilievici, L. Capra, G. Ivan, A.C. Ion, "Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets". Revista de Chimie, vol. 69, no. 1, pp. 191-195, 2018. [online]. https://doi.org/10.37358/RC.18.1.6072


Text
Elena Radu, Elena Emilia Oprescu, Cristina Emanuela Enascuta, Catalina Calin, Rusandica Stoica, Gina Vasile Scaeteanu, Gabriel Vasilievici, Luiza Capra, Georgeta Ivan, Alina Catrinel Ion,
Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets,
Revista de Chimie,
Volume 69, Issue 1,
2018,
Pages 191-195,
ISSN 2668-8212,
https://doi.org/10.37358/RC.18.1.6072.
(https://revistadechimie.ro/Articles.asp?ID=6072)
Keywords: defatted algal biomass; polysaccharides; humic acids mixture; exfoliated graphite nanoplatelets; adsorption


RIS
TY - JOUR
T1 - Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets
A1 - Radu, Elena
A2 - Oprescu, Elena Emilia
A3 - Enascuta, Cristina Emanuela
A4 - Calin, Catalina
A5 - Stoica, Rusandica
A6 - Scaeteanu, Gina Vasile
A7 - Vasilievici, Gabriel
A8 - Capra, Luiza
A9 - Ivan, Georgeta
A10 - Ion, Alina Catrinel
JF - Revista de Chimie
JO - Rev.Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2018
VL - 69
IS - 1
SP - 191
EP - 195
UR - https://doi.org/10.37358/RC.18.1.6072
KW - defatted algal biomass
KW - polysaccharides
KW - humic acids mixture
KW - exfoliated graphite nanoplatelets
KW - adsorption
ER -


BibTex
@article{RevCh2018P191,
author = {Radu Elena and Oprescu Elena Emilia and Enascuta Cristina Emanuela and Calin Catalina and Stoica Rusandica and Scaeteanu Gina Vasile and Vasilievici Gabriel and Capra Luiza and Ivan Georgeta and Ion Alina Catrinel},
title = {Kinetic Adsorption of Humic Acids Mixture Obtained from Microalgae on Exfoliated Graphite Nanoplatelets},
journal = {Revista de Chimie},
volume = {69},
number = {1},
pages = {191-195},
year = {2018},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.18.1.6072},
url = {https://revistadechimie.ro/Articles.asp?ID=6072}
}
 
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