Functionalisation of biowaste-derived biochar via accelerated hydrothermal-assisted post-treatment for enhanced sodium ion adsorption
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0201486" target="_blank" >RIV/00216305:26210/26:0201486 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s13399-023-04635-6" target="_blank" >https://link.springer.com/article/10.1007/s13399-023-04635-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s13399-023-04635-6" target="_blank" >10.1007/s13399-023-04635-6</a>
Alternative languages
Result language
angličtina
Original language name
Functionalisation of biowaste-derived biochar via accelerated hydrothermal-assisted post-treatment for enhanced sodium ion adsorption
Original language description
Oil palm empty fruit bunch (EFB) is a major waste produced by the palm oil industry. The incineration or random disposal of EFB has led to serious environmental pollution. This study evaluated the potential of hydrothermally post-treated EFB biochar as an adsorbent to remove sodium cations (Na+) from an aqueous environment. Physicochemical analysis revealed the improved porous structure of the hydrothermally post-treated EFB biochar and the marginal improvement in its surface area and porosity. The post-treated EFB biochar exhibited abundant oxygen-containing functional groups that enhanced the removal of Na+ from the saline solution. The optimum hydrothermal HNO3 post-treatment conditions were achieved using 3 mol/L HNO3, 15 g of EFB biochar, treatment temperature of 120 degrees C, and 60 min, with the highest Na+ removal efficiency recorded as 81.92%. Upon the hydrothermal post-treatment process, the adsorption capacity of the treated EFB biochar improved significantly (P< 0.05) from 11.29 mg center dot g(-1) (untreated EFB biochar) to 78.34 mg center dot g(-1). The Na+ adsorption kinetic of HNO3 post-treated EFB biochar is best fitted to the pseudo-second order model, suggesting that the adsorption process is governed by chemisorption. The present study has successfully functionalised the EFB biochar and improved its adsorption performance towards Na+ using an autoclave as readily available equipment. The well-controlled pressure and temperature offered by autoclave have improved the post-treatment efficiency with a lesser amount of HNO3 and shorter treatment time than the conventional post-treatment method, thus contributing to cost and time-saving.
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
20401 - Chemical engineering (plants, products)
Result continuities
Project
<a href="/en/project/EF15_003%2F0000456" target="_blank" >EF15_003/0000456: Sustainable Process Integration Laboratory (SPIL)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Biomass Conversion and Biorefinery
ISSN
2190-6815
e-ISSN
2190-6823
Volume of the periodical
15
Issue of the periodical within the volume
19
Country of publishing house
DE - GERMANY
Number of pages
18
Pages from-to
25777-25794
UT code for WoS article
001145014500008
EID of the result in the Scopus database
2-s2.0-85175118213