Preparation and characterization of thiosemicarbazide functionalized graphene oxide as nanoadsorbent sheets for removal of lead cations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914523" target="_blank" >RIV/00216275:25310/19:39914523 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs13762-018-2002-6" target="_blank" >https://link.springer.com/article/10.1007%2Fs13762-018-2002-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s13762-018-2002-6" target="_blank" >10.1007/s13762-018-2002-6</a>
Alternative languages
Result language
angličtina
Original language name
Preparation and characterization of thiosemicarbazide functionalized graphene oxide as nanoadsorbent sheets for removal of lead cations
Original language description
A facial and novel method for removal of Pb+2 based on the appealing interaction between thiosemicarbazide-modified graphene oxide nanosheets and Pb+2 is reported in this work. Textural and chemical characterization of graphite, graphene oxide, esterified graphene oxide and thiosemicarbazide-modified graphene oxide nanosheets was investigated using thermogravimetric analysis (TGA), nitrogen adsorption at - 196 degrees C, transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Adsorption of Pb+2 was confirmed by Langmuir model with maximum adsorption capacity of 192.7 mg/g for thiosemicarbazide-modified graphene oxide nanosheets at 27 degrees C and initial pH value of 5.0. Kinetic studies showed that the adsorption of lead ions on the solid adsorbents follows pseudo-first order and Elovich kinetic models. Regeneration of graphene oxide, esterified graphene oxide and thiosemicarbazide-modified graphene oxide nanosheets was studied using different eluents (H2O, 0.1 M HCl, 0.1 M EDTA) at different pH values. Both of disodium salt of ethylenediaminetetraacetic acid (EDTA) and HCl solutions (0.1 M) are efficient eluents to desorb lead cations from the solid adsorbent surface. Desorption efficiency of HCl solution decreases with increasing its pH value.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Environmental Science and Technology
ISSN
1735-1472
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
6207-6216
UT code for WoS article
000486155600072
EID of the result in the Scopus database
2-s2.0-85053684637