Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU145145" target="_blank" >RIV/00216305:26620/22:PU145145 - isvavai.cz</a>
Result on the web
<a href="http://www.doiserbia.nb.rs/Article.aspx?ID=0350-820X2201105P#.Yt_peHZBw2w" target="_blank" >http://www.doiserbia.nb.rs/Article.aspx?ID=0350-820X2201105P#.Yt_peHZBw2w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2298/SOS2201105P" target="_blank" >10.2298/SOS2201105P</a>
Alternative languages
Result language
angličtina
Original language name
Removal of the As(V) and Cr(VI) from the Water Using Magnetite/3D-Printed Wollastonite Hybrid Adsorbent
Original language description
In this study, the structure, morphology and composition of the synthesized magnetite/3D-printed wollastonite (3D_W/M) composite were characterized, and its adsorption performance with respect to As(V) and Cr(VI) were studied. Magnetite (MG) modified 3D printed wollastonite was obtained by two step procedure: modification of 3D_W with 3-aminoproylsilane (APTES) followed by controlled magnetite (MG) deposition to obtain 3D_W/M adsorbent. The structure/properties of 3D_W/M were confirmed by applying FTIR, XRD, TGD/DTA, and SEM analysis. The adsorption properties of hybrid adsorbents were carried out for As(V) and Cr(VI) removal - one relative to the initial pH value, the adsorbent mass, the temperature, and the adsorption time. Time-dependent adsorption study was best described by pseudo-second order equation, while Weber Morris analysis showed that intraparticle diffusion controled diffusional transport. Similar activation energy, 17.44 and 14.49 kJ.mol(-1) for adsorption As(V) and Cr(VI) on 3D_W/M, respectively, indicated main contribution of physical adsorption. Determination of adsorption parameters was performed by applying different adsorption isotherm models, and the best fit was obtained using Freundlich model. The adsorption capacity of 24.16 and 29.6 mg g(-1) for As(V) and Cr(VI) at 2 degrees C, Co = 5.5 and 5.3 mg L-l, respectively, were obtained. Thermodynamic study indicated favourable process at a higher temperature. Preliminary fixed-bed column study and results fitting with Bohart-Adams, Yoon-Nelson, Thomas, and Modified dose-response model showed good agreement with results from the batch study.
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
20501 - Materials engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Science of Sintering
ISSN
0350-820X
e-ISSN
—
Volume of the periodical
54
Issue of the periodical within the volume
1
Country of publishing house
RS - THE REPUBLIC OF SERBIA
Number of pages
20
Pages from-to
105-124
UT code for WoS article
000777415500010
EID of the result in the Scopus database
2-s2.0-85127680223