Preparation of melamine formaldehyde/nanozeolite Y composite based on nanosilica extracted from rice husks by sol-gel method: adsorption of lead (II) ion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F20%3A39916453" target="_blank" >RIV/00216275:25310/20:39916453 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10971-020-05295-y" target="_blank" >https://link.springer.com/article/10.1007/s10971-020-05295-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10971-020-05295-y" target="_blank" >10.1007/s10971-020-05295-y</a>

Result language
angličtina
Original language name
Preparation of melamine formaldehyde/nanozeolite Y composite based on nanosilica extracted from rice husks by sol-gel method: adsorption of lead (II) ion
Original language description
In the present work nanozeolite Y was prepared from nanosilica powder extracted from rice husks ash by sol-gel method as a green biosource (NZ). Melamine formaldehyde resin (MF) and melamine formaldehyde/nanozeolite Y (MFZ) particles were prepared at pH 9 and 110 degrees C. NZ, MF, and MFZ were characterized using TGA, SEM, XRD, nitrogen adsorption, pH(PZC), and FTIR. Melamine formaldehyde/nanozeolite Y exhibited an advanced textural structure with surface area of 1035.6 m(2)/g and abundance of chemical functional groups. Lead ions adsorption was investigated under different application conditions considering thermodynamic and kinetics studies. The maximum adsorption capacity (q(m), mg/g) was confirmed by MFZ and found to be 180.8 after 60 min of equilibrium time at pH6, 1.0 g/L as adsorbent dosage, and at 40 degrees C. Lead (II) adsorption onto solid adsorbents fitted with Langmuir adsorption, pseudo-second order, Elovich kinetic, and Vant Hoff's models. Thermodynamic investigations showed that lead adsorption by all the adsorbents are spontaneous and endothermic.
Czech name
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Czech description
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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
20501 - Materials engineering

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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