Advanced Cr(VI) sorption properties of activated carbon produced via pyrolysis of the "Posidonia oceanica" seagrass
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F21%3A10247714" target="_blank" >RIV/61989100:27640/21:10247714 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15640/21:73607339
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0304389420322640?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0304389420322640?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jhazmat.2020.124274" target="_blank" >10.1016/j.jhazmat.2020.124274</a>
Alternative languages
Result language
angličtina
Original language name
Advanced Cr(VI) sorption properties of activated carbon produced via pyrolysis of the "Posidonia oceanica" seagrass
Original language description
This research deals with the removal of Cr(VI), one of the most toxic heavy metal in biological systems, from wastewater by using activated carbon produced via pyrolysis and chemical activation of "Posidonia oceanica". That is the most important and well-studied seagrass species of the Mediterranean Sea. The as produced activated carbon exhibited high specific surface area up to 1563 m(2)/g and a cumulative pore volume of 0.74 cm(3)/g, allocated to 74% micro-pores and 26% to meso-macro- pores. The adsorption capacity of Cr(VI) into Posidonia oceanica activated carbon was studied via batch experiments considering the contact time, the initial concentration and the pH parameters. The results were interpreted using four different adsorption kinetic models. The activated carbon material seems to exhibit excellent sorption properties with rapid removal capability for Cr(VI). The estimated maximum uptake capacity at equilibrium stage was similar to 120 mg/g. Also, the initial adsorption rate r(i) was dependent on the initial Cr(VI) concentration in aqueous solution and it was from 77 mg/(g*h) to 264 mg/ (g*h). The best fitted kinetic model seems to be the Diffusion-Chemisorption model with the rate constant K-DC of the Cr(VI) ions transfer from liquid to solid particles extend from 52 to 78 mg/(g*h(0.5)).
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20700 - Environmental engineering
Result continuities
Project
<a href="/en/project/GX19-27454X" target="_blank" >GX19-27454X: Control of electronic properties of metal-containing molecules through their noncovalent interactions with solvents, ligands and 2D nanosystems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Hazardous Materials
ISSN
0304-3894
e-ISSN
—
Volume of the periodical
405
Issue of the periodical within the volume
5. 3. 2021
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
—
UT code for WoS article
000616145100006
EID of the result in the Scopus database
2-s2.0-85094810893