Hydrothermally synthesized MnO2 nanowires and their application
in Lead (II) and Copper (II) batch adsorption

J 2021

Hydrothermally synthesized MnO2 nanowires and their application in Lead (II) and Copper (II) batch adsorption

CLAROS, Martha, Jan KUTA, Omar EL-DAHSHAN, Jan MICHALICKA, Yecid P. JIMENEZ et. al.

Basic information

Original name

Hydrothermally synthesized MnO2 nanowires and their application in Lead (II) and Copper (II) batch adsorption

Authors

CLAROS, Martha (724 Spain), Jan KUTA (203 Czech Republic, guarantor, belonging to the institution), Omar EL-DAHSHAN (203 Czech Republic), Jan MICHALICKA (203 Czech Republic), Yecid P. JIMENEZ (152 Chile) and Stella VALLEJOS (724 Spain)

Edition

Journal of Molecular Liquids, Amsterdam, Elsevier B.V. 2021, 0167-7322

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10301 Atomic, molecular and chemical physics

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 6.633

RIV identification code

RIV/00216224:14310/21:00122256

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.molliq.2020.115203

UT WoS

000636695200118

Keywords in English

Hydrothermal synthesis; Heavy metal adsorption; MnO2 nanowires

Abstract

V originále

Manganese oxide (MnO2) nanowires with diameters of 20 nm to 100 nm are synthesized by hydrothermal method. Chemical characterization of these nanostructures demonstrates the formation of Mn(IV), corroborating the MnO2 compound. The nanowires were used as adsorbents of Pb(II) and Cu(II) ions from water in batch system at room temperature. The results indicate faster adsorption rates and better affinity towards Pb(II) compared to Cu(II), since the adsorption capacity (3.730 [mg.g(-1)]) and the percentage of removal (99.99%) at equilibrium for Pb(II) are higher than those for Cu(II), 2.972 [mg.g(-1)] and 75.48%. The kinetics of adsorption was described by a pseudo-second order rate model for both ions, and Weber and Morris intra-particle diffusion model was used to a better understanding of the process. In addition, the Langmuir and Freundlich models were used to describe the isotherms, the first model was better adjusted for Cu(II) adsorption and the later for Pb(II) adsorption.

Links

EF17_043/0009632, research and development project

Name: CETOCOEN Excellence

LM2015051, research and development project

Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX RI)

Investor: Ministry of Education, Youth and Sports of the CR

LM2018121, research and development project

Name: Výzkumná infrastruktura RECETOX (Acronym: RECETOX RI)

Investor: Ministry of Education, Youth and Sports of the CR, RECETOX RI

857560, interní kód MU
(CEP code: EF17_043/0009632)

Name: CETOCOEN Excellence (Acronym: CETOCOEN Excellence)

Investor: European Union, Spreading excellence and widening participation

Citovat

CLAROS, Martha, Jan KUTA, Omar EL-DAHSHAN, Jan MICHALICKA, Yecid P. JIMENEZ and Stella VALLEJOS. Hydrothermally synthesized MnO2 nanowires and their application in Lead (II) and Copper (II) batch adsorption. Journal of Molecular Liquids. Amsterdam: Elsevier B.V., 2021, vol. 325, March 2021, p. 1-11. ISSN 0167-7322. Available from: https://dx.doi.org/10.1016/j.molliq.2020.115203.

@article{1789783,
   author = {Claros, Martha and Kuta, Jan and ElandDahshan, Omar and Michalicka, Jan and Jimenez, Yecid P. and Vallejos, Stella},
   article_location = {Amsterdam},
   article_number = {March 2021},
   doi = {http://dx.doi.org/10.1016/j.molliq.2020.115203},
   keywords = {Hydrothermal synthesis; Heavy metal adsorption; MnO2 nanowires},
   language = {eng},
   issn = {0167-7322},
   journal = {Journal of Molecular Liquids},
   title = {Hydrothermally synthesized MnO2 nanowires and their application in Lead (II) and Copper (II) batch adsorption},
   url = {https://www.sciencedirect.com/science/article/pii/S0167732220374456?via%3Dihub},
   volume = {325},
   year = {2021}
}

TY  - JOUR
ID  - 1789783
AU  - Claros, Martha - Kuta, Jan - El-Dahshan, Omar - Michalicka, Jan - Jimenez, Yecid P. - Vallejos, Stella
PY  - 2021
TI  - Hydrothermally synthesized MnO2 nanowires and their application in Lead (II) and Copper (II) batch adsorption
JF  - Journal of Molecular Liquids
VL  - 325
IS  - March 2021
SP  - 1-11
EP  - 1-11
PB  - Elsevier B.V.
SN  - 01677322
KW  - Hydrothermal synthesis
KW  - Heavy metal adsorption
KW  - MnO2 nanowires
UR  - https://www.sciencedirect.com/science/article/pii/S0167732220374456?via%3Dihub
N2  - Manganese oxide (MnO2) nanowires with diameters of 20 nm to 100 nm are synthesized by hydrothermal method. Chemical characterization of these nanostructures demonstrates the formation of Mn(IV), corroborating the MnO2 compound. The nanowires were used as adsorbents of Pb(II) and Cu(II) ions from water in batch system at room temperature. The results indicate faster adsorption rates and better affinity towards Pb(II) compared to Cu(II), since the adsorption capacity (3.730 [mg.g(-1)]) and the percentage of removal (99.99%) at equilibrium for Pb(II) are higher than those for Cu(II), 2.972 [mg.g(-1)] and 75.48%. The kinetics of adsorption was described by a pseudo-second order rate model for both ions, and Weber and Morris intra-particle diffusion model was used to a better understanding of the process. In addition, the Langmuir and Freundlich models were used to describe the isotherms, the first model was better adjusted for Cu(II) adsorption and the later for Pb(II) adsorption.
ER  -

CLAROS, Martha, Jan KUTA, Omar EL-DAHSHAN, Jan MICHALICKA, Yecid P. JIMENEZ and Stella VALLEJOS. Hydrothermally synthesized MnO2 nanowires and their application in Lead (II) and Copper (II) batch adsorption. \textit{Journal of Molecular Liquids}. Amsterdam: Elsevier B.V., 2021, vol.~325, March 2021, p.~1-11. ISSN~0167-7322. Available from: https://dx.doi.org/10.1016/j.molliq.2020.115203.

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