Single-stage production of miscanthus hydrochar at low severity conditions and application as adsorbent of copper and ammonium ions
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2021
Authors
Georgiou, EfthaliaMihajlović, Marija

Petrović, Jelena

Anastopoulos, Ioannis

Dosche, Carsten
Pashalidis, Ioannis
Kalderis, Dimitrios
Article (Published version)

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In the framework of bio-circular economy, miscanthus biomass was valorized through a single-stage, low severity hydrothermal carbonization process. The produced hydrochars were characterized using elemental and spectroscopic methodologies. It was determined that as the temperature increased so did the C content (47.9 and 68.9% for the samples prepared at 180 and 260 degrees C, respectively), whereas the O content decreased (from 44.2 to 25.5%, respectively). The adsorption behaviour of the hydrochars was investigated in the adsorption of Cu2+ and NH4+ and MIS-180 was determined as the optimum sample, achieving qmax values of 310 and 71 mg g-1, respectively. Isotherm and kinetic analysis indicated the higher number of O-containing functional groups of MIS-180 as the main reason for its higher adsorption capacities. Furthermore, Cu2+ adsorption followed the 2ndorder kinetic model, whereas NH4+ adsorption followed the 1st-order kinetic model, due to the different mechanisms involved, inne...r-sphere and outer-sphere complex formation, respectively.
Keywords:
Miscanthus / Hydrothermal carbonization / Copper / Ammonium / AdsorptionSource:
Bioresource Technology, 2021, 337Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
- German Research Foundation (DFG) [INST 184/144-1 FUGG]
- Hellenic Mediterranean University
DOI: 10.1016/j.biortech.2021.125458
ISSN: 0960-8524
PubMed: 34186330
WoS: 000677955700009
Scopus: 2-s2.0-85111046408
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Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Georgiou, Efthalia AU - Mihajlović, Marija AU - Petrović, Jelena AU - Anastopoulos, Ioannis AU - Dosche, Carsten AU - Pashalidis, Ioannis AU - Kalderis, Dimitrios PY - 2021 UR - https://ritnms.itnms.ac.rs/handle/123456789/564 AB - In the framework of bio-circular economy, miscanthus biomass was valorized through a single-stage, low severity hydrothermal carbonization process. The produced hydrochars were characterized using elemental and spectroscopic methodologies. It was determined that as the temperature increased so did the C content (47.9 and 68.9% for the samples prepared at 180 and 260 degrees C, respectively), whereas the O content decreased (from 44.2 to 25.5%, respectively). The adsorption behaviour of the hydrochars was investigated in the adsorption of Cu2+ and NH4+ and MIS-180 was determined as the optimum sample, achieving qmax values of 310 and 71 mg g-1, respectively. Isotherm and kinetic analysis indicated the higher number of O-containing functional groups of MIS-180 as the main reason for its higher adsorption capacities. Furthermore, Cu2+ adsorption followed the 2ndorder kinetic model, whereas NH4+ adsorption followed the 1st-order kinetic model, due to the different mechanisms involved, inner-sphere and outer-sphere complex formation, respectively. PB - Elsevier Sci Ltd, Oxford T2 - Bioresource Technology T1 - Single-stage production of miscanthus hydrochar at low severity conditions and application as adsorbent of copper and ammonium ions VL - 337 DO - 10.1016/j.biortech.2021.125458 UR - conv_912 ER -
@article{ author = "Georgiou, Efthalia and Mihajlović, Marija and Petrović, Jelena and Anastopoulos, Ioannis and Dosche, Carsten and Pashalidis, Ioannis and Kalderis, Dimitrios", year = "2021", abstract = "In the framework of bio-circular economy, miscanthus biomass was valorized through a single-stage, low severity hydrothermal carbonization process. The produced hydrochars were characterized using elemental and spectroscopic methodologies. It was determined that as the temperature increased so did the C content (47.9 and 68.9% for the samples prepared at 180 and 260 degrees C, respectively), whereas the O content decreased (from 44.2 to 25.5%, respectively). The adsorption behaviour of the hydrochars was investigated in the adsorption of Cu2+ and NH4+ and MIS-180 was determined as the optimum sample, achieving qmax values of 310 and 71 mg g-1, respectively. Isotherm and kinetic analysis indicated the higher number of O-containing functional groups of MIS-180 as the main reason for its higher adsorption capacities. Furthermore, Cu2+ adsorption followed the 2ndorder kinetic model, whereas NH4+ adsorption followed the 1st-order kinetic model, due to the different mechanisms involved, inner-sphere and outer-sphere complex formation, respectively.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Bioresource Technology", title = "Single-stage production of miscanthus hydrochar at low severity conditions and application as adsorbent of copper and ammonium ions", volume = "337", doi = "10.1016/j.biortech.2021.125458", url = "conv_912" }
Georgiou, E., Mihajlović, M., Petrović, J., Anastopoulos, I., Dosche, C., Pashalidis, I.,& Kalderis, D.. (2021). Single-stage production of miscanthus hydrochar at low severity conditions and application as adsorbent of copper and ammonium ions. in Bioresource Technology Elsevier Sci Ltd, Oxford., 337. https://doi.org/10.1016/j.biortech.2021.125458 conv_912
Georgiou E, Mihajlović M, Petrović J, Anastopoulos I, Dosche C, Pashalidis I, Kalderis D. Single-stage production of miscanthus hydrochar at low severity conditions and application as adsorbent of copper and ammonium ions. in Bioresource Technology. 2021;337. doi:10.1016/j.biortech.2021.125458 conv_912 .
Georgiou, Efthalia, Mihajlović, Marija, Petrović, Jelena, Anastopoulos, Ioannis, Dosche, Carsten, Pashalidis, Ioannis, Kalderis, Dimitrios, "Single-stage production of miscanthus hydrochar at low severity conditions and application as adsorbent of copper and ammonium ions" in Bioresource Technology, 337 (2021), https://doi.org/10.1016/j.biortech.2021.125458 ., conv_912 .