A comparative study of different activation methods for hydrochar: surface properties and removal of pharmaceutical pollutant in water
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F25%3AA2603C0K" target="_blank" >RIV/61988987:17310/25:A2603C0K - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/10.1007/s11356-025-36706-8" target="_blank" >https://link.springer.com/10.1007/s11356-025-36706-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11356-025-36706-8" target="_blank" >10.1007/s11356-025-36706-8</a>
Alternative languages
Result language
angličtina
Original language name
A comparative study of different activation methods for hydrochar: surface properties and removal of pharmaceutical pollutant in water
Original language description
Contaminants of emerging concerns, such as sulfonamides, have been frequently discovered in surface water, and the design of biomass-based adsorbents is a promising research direction to remove them from water. In this study, hydrothermal carbonization was utilized to prepare hydrochar (HC) from orange peels along with various activations, including hydrogen peroxide (H2O2) and HCl. The main goals of the present study are (i) to prepare hydrochars that were activated by different chemical methods and (ii) to provide insights into the adsorption mechanism of pollutant removal using sulfamethoxazole (SMX) as a model pharmaceutical pollutant. The H2O2 activated hydrochar (ACHC) exhibited the best adsorption capacity for removal of 40 μM SMX from water, i.e., 1.971 mg g−1 using 0.2 g L−1 ACHC. Scanning electron microscopy (SEM) studies revealed that the ACHC exhibited a coral-like structure and the highest amount of mesopores (74.6 m2 g−1) and BET area of 79.5 m2 g−1. The effects of pH, adsorbent dosage, initial concentration, and adsorption temperature were investigated, and a substantial relationship between porosity and adsorption suggests that mesoporosity played a crucial role in the adsorption process for all the activated hydrochars. The mechanism of SMX adsorption involves reversible chemisorption and retention in the pores of the adsorbent surface. The use of ACHC was also tested in different water matrices to highlight its potential applications in wastewater treatment, and it exhibited an adsorption capacity of 0.598 and 0.429 mg g−1 in tap water and wastewater effluents, respectively.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
Environmental Science and Pollution Research
ISSN
0944-1344
e-ISSN
1614-7499
Volume of the periodical
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Issue of the periodical within the volume
July 2025
Country of publishing house
DE - GERMANY
Number of pages
14
Pages from-to
18107-18120
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-105010633409