Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism
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Petrović, Jelena
Ercegović, Marija

Simić, Marija

Kalderis, Dimitrios
Koprivica, Marija

Milojković, Jelena

Radulović, Dragan

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In this study, Mg-based pyro-hydrochars derived from waste grape pomace (Mg-GP), corn cob (Mg-CC), and Miscanthus x giganteus (Mg-MIS) were successfully prepared applying one-step hydrothermal carbonization followed by pyrolysis. The structural characteristics and surface analysis of the prepared materials were characterized by various techniques, while its adsorption ability was examined through remediation of methylene blue (MB) under batch adsorption experiments. The obtained results revealed that pyro-hydrochars are highly effective adsorbents of MB with achieved capacities of 289.65 mg g(-1), 262.30 mg g(-1), and 232.48 mg g(-1) for Mg-GP, Mg-CC and Mg-MIS, respectively. The binding of MB to the surface on either of the tested material was achieved by a complex mechanism that unifies electro-static interaction, hydrogen bonding, pi-pi interaction, surface complexation, and ion-exchange mechanism. The kinetic study display that the adsorption process onto used Mg-doped pyro-hydroch...ars is favorable and follows pseudo-second order kinetics, while the isotherm equilibriums were determined by Sips isotherm model. Tested materials can be effectively reused for at least 3 cycles, with minimal loss of efficiency. Overall, findings from this work promote Mg-doped pyro-hydrochars form different precursors as promising, sustainable, and efficient adsorbents of MB from polluted wastewaters.
Keywords:
Waste biomass / Methylene blue / Hydrothermal carbonization / Hydrochar / AdsorptionSource:
Journal of Molecular Liquids, 2023, 376Publisher:
- Elsevier, Amsterdam
Funding / projects:
DOI: 10.1016/j.molliq.2023.121424
ISSN: 0167-7322
WoS: 000944387600001
Scopus: 2-s2.0-85148089811
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Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Petrović, Jelena AU - Ercegović, Marija AU - Simić, Marija AU - Kalderis, Dimitrios AU - Koprivica, Marija AU - Milojković, Jelena AU - Radulović, Dragan PY - 2023 UR - https://ritnms.itnms.ac.rs/handle/123456789/646 AB - In this study, Mg-based pyro-hydrochars derived from waste grape pomace (Mg-GP), corn cob (Mg-CC), and Miscanthus x giganteus (Mg-MIS) were successfully prepared applying one-step hydrothermal carbonization followed by pyrolysis. The structural characteristics and surface analysis of the prepared materials were characterized by various techniques, while its adsorption ability was examined through remediation of methylene blue (MB) under batch adsorption experiments. The obtained results revealed that pyro-hydrochars are highly effective adsorbents of MB with achieved capacities of 289.65 mg g(-1), 262.30 mg g(-1), and 232.48 mg g(-1) for Mg-GP, Mg-CC and Mg-MIS, respectively. The binding of MB to the surface on either of the tested material was achieved by a complex mechanism that unifies electro-static interaction, hydrogen bonding, pi-pi interaction, surface complexation, and ion-exchange mechanism. The kinetic study display that the adsorption process onto used Mg-doped pyro-hydrochars is favorable and follows pseudo-second order kinetics, while the isotherm equilibriums were determined by Sips isotherm model. Tested materials can be effectively reused for at least 3 cycles, with minimal loss of efficiency. Overall, findings from this work promote Mg-doped pyro-hydrochars form different precursors as promising, sustainable, and efficient adsorbents of MB from polluted wastewaters. PB - Elsevier, Amsterdam T2 - Journal of Molecular Liquids T1 - Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism VL - 376 DO - 10.1016/j.molliq.2023.121424 UR - conv_965 ER -
@article{ author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Kalderis, Dimitrios and Koprivica, Marija and Milojković, Jelena and Radulović, Dragan", year = "2023", abstract = "In this study, Mg-based pyro-hydrochars derived from waste grape pomace (Mg-GP), corn cob (Mg-CC), and Miscanthus x giganteus (Mg-MIS) were successfully prepared applying one-step hydrothermal carbonization followed by pyrolysis. The structural characteristics and surface analysis of the prepared materials were characterized by various techniques, while its adsorption ability was examined through remediation of methylene blue (MB) under batch adsorption experiments. The obtained results revealed that pyro-hydrochars are highly effective adsorbents of MB with achieved capacities of 289.65 mg g(-1), 262.30 mg g(-1), and 232.48 mg g(-1) for Mg-GP, Mg-CC and Mg-MIS, respectively. The binding of MB to the surface on either of the tested material was achieved by a complex mechanism that unifies electro-static interaction, hydrogen bonding, pi-pi interaction, surface complexation, and ion-exchange mechanism. The kinetic study display that the adsorption process onto used Mg-doped pyro-hydrochars is favorable and follows pseudo-second order kinetics, while the isotherm equilibriums were determined by Sips isotherm model. Tested materials can be effectively reused for at least 3 cycles, with minimal loss of efficiency. Overall, findings from this work promote Mg-doped pyro-hydrochars form different precursors as promising, sustainable, and efficient adsorbents of MB from polluted wastewaters.", publisher = "Elsevier, Amsterdam", journal = "Journal of Molecular Liquids", title = "Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism", volume = "376", doi = "10.1016/j.molliq.2023.121424", url = "conv_965" }
Petrović, J., Ercegović, M., Simić, M., Kalderis, D., Koprivica, M., Milojković, J.,& Radulović, D.. (2023). Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism. in Journal of Molecular Liquids Elsevier, Amsterdam., 376. https://doi.org/10.1016/j.molliq.2023.121424 conv_965
Petrović J, Ercegović M, Simić M, Kalderis D, Koprivica M, Milojković J, Radulović D. Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism. in Journal of Molecular Liquids. 2023;376. doi:10.1016/j.molliq.2023.121424 conv_965 .
Petrović, Jelena, Ercegović, Marija, Simić, Marija, Kalderis, Dimitrios, Koprivica, Marija, Milojković, Jelena, Radulović, Dragan, "Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism" in Journal of Molecular Liquids, 376 (2023), https://doi.org/10.1016/j.molliq.2023.121424 ., conv_965 .