Production of activated carbons from waste carpets and its application in methylene blue adsorption: Kinetic and thermodynamic studies
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00478823" target="_blank" >RIV/68081723:_____/17:00478823 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jece.2017.01.003" target="_blank" >http://dx.doi.org/10.1016/j.jece.2017.01.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jece.2017.01.003" target="_blank" >10.1016/j.jece.2017.01.003</a>
Alternative languages
Result language
angličtina
Original language name
Production of activated carbons from waste carpets and its application in methylene blue adsorption: Kinetic and thermodynamic studies
Original language description
This work reports synthesis of three H3PO4-activated carbons from waste carpets ( pre-and/or post-consumer wastes) with different weight ratios of solid waste: H3PO4 ( 1: 1, 1: 2 and 1: 3) to obtain CP11, CP12 and CP13, respectively. Thermal, textural and chemical characterizations were used to compare between the properties of the prepared samples. TGA confirms thermal stability of the prepared adsorbents compared with carpet sample and ash content increases with increasing the percentage of H3PO4. SEM confirms the presence of nanopores created with chemical activation. Nitrogen adsorption showed that surface area in the range 330-953 m(2)/g with pore radius in the range 1.40-1.48 nm. FTIR, pHPZC and base adsorption capacities confirm the presence of acidic surface function groups. It was observed that the optimum conditions for methylene blue adsorption were confirmed at adsorbent dosage of 8 g/L, pH8, equilibrium time about 12 h and the adsorption follow pseudo-second order kinetic model. Maximum adsorption capacities calculated using Langmuir model were 403.2, 704.2 and 769.2 mg/g for CP11, CP12 and CP13, respectively at 35 degrees C. Thermodynamic parameters indicate the physical and spontaneous nature of adsorption. Maximum desorption efficiency of methylene blue was confirmed by ethanol solvent and increased with temperature. (C) 2017 Elsevier Ltd. All rights reserved.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
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 Environmental Chemical Engineering
ISSN
2213-3437
e-ISSN
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Volume of the periodical
5
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
955-963
UT code for WoS article
000398950800098
EID of the result in the Scopus database
2-s2.0-85009986883