New perception of Zn(II) and Mn(II) removal mechanism on sustainable sunflower biochar from alkaline batteries contaminated water

Yankovych, Halyna; Novoseltseva, Viktoriia; Kovalenko, Оlena; Behunova, Dominika Marcin; Kaňuchová, Mária; Václavíková, Miroslava; Melnyk, Inna V.

doi:10.1016/j.jenvman.2021.112757

Cited by 29 publications

(9 citation statements)

References 57 publications

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“…It has been reported that Mn 2+ is difficult to chelate with cation-π of the aromatic functional groups on the surface of biochar. 45 Therefore, less amount of Mn 2+ was detected to be adsorbed on biochar through chelation with cation-π interactions in this study, as shown in Fig. 5A .…”

Section: Resultsmentioning

confidence: 58%

“…The adsorption of Mn 2+ was hardly proceeded by surface complexation, which implied that Mn 2+ was less likely to bind to the acidic oxygen-containing functional groups. 44,45…”

Section: Resultsmentioning

confidence: 99%

“…The adsorption of Mn 2+ was hardly proceeded by surface complexation, which implied that Mn 2+ was less likely to bind to the acidic oxygen-containing functional groups. 44,45 Chelation with cation-p. With regard to the chelation with cation-p, the amount was determined as shown in Fig. 5A.…”

Section: Quantication Of the Adsorption Forcesmentioning

confidence: 99%

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Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Zhao

Pan

et al. 2022

RSC Adv.

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Section: Resultsmentioning

confidence: 58%

“…The adsorption of Mn 2+ was hardly proceeded by surface complexation, which implied that Mn 2+ was less likely to bind to the acidic oxygen-containing functional groups. 44,45…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Zhao

Pan

et al. 2022

RSC Adv.

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“…The adsorption isotherm investigations were performed in the concentration range 10-1000 mg L − 1 at the optimal adsorption conditions determined by previous experiments for Cu(II) and Pb(II) ions, respectively. The adsorption isotherm data were processed by the linearised forms of equations for Langmuir and Freundlich isotherm models and the appropriate parameters were calculated [25][26][27].…”

Section: Methodsmentioning

confidence: 99%

“…This suggests that the chemisorption of Cu(II) and Pb(II) ions is the rate-determining step of the adsorption process and involves the chemical interaction such as ion exchange or chelation between Cu(II) and Pb(II) ions and polar functional groups on the adsorbent surface [35]. The better t of the pseudo-second-order model also indicates the existence of two types of active adsorption sites on the adsorbent surface [27].…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Biosorption of selected heavy metals on wild thyme to prepare antibacterial agents

Kováčová

Yankovych

Augustyniak

et al. 2023

Preprint

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The presented study proposes a new potential biosorbent- Thymus serpyllum L. (wild thyme) plant, which showed to be highly efficient in rapid adsorption of Cu(II) and Pb(II) ions. Apart from biochars, that are commonly used for adsorption, here we report the direct use of native plant. The highest adsorption capacity for Cu(II) and Pb(II) ions (qe = 12.66 and 53.13 mg g-1, respectively) was achieved after 10 and 30 minutes, respectively. The combination of characterization methods (SEM/EDX, TGA, FT-IR, XPS and ζ-potential measurements) confirmed the combined adsorption mechanism consisting of the ion exchange at the lower Cu(II) and Pb(II) concentrations and the complexation and chelation at higher concentrations. Moreover, the Cu-laden plant has been shown to be an efficient antibacterial agent against the bacteria E. coli and S. aureus. Thus, the sustainable resource can be used both to treat wastewater and be used in the fight against microbes afterwards.

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Triggering antibacterial activity of a common plant by biosorption of selected heavy metals

Kováčová,

Bodnár Yankovych,

Augustyniak

et al. 2024

J Biol Inorg Chem

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The presented study proposes an efficient utilization of a common Thymus serpyllum L. (wild thyme) plant as a highly potent biosorbent of Cu(II) and Pb(II) ions and the efficient interaction of the copper-laden plant with two opportunistic bacteria. Apart from biochars that are commonly used for adsorption, here we report the direct use of native plant, which is potentially interesting also for soil remediation. The highest adsorption capacity for Cu(II) and Pb(II) ions (qe = 12.66 and 53.13 mg g−1, respectively) was achieved after 10 and 30 min of adsorption, respectively. Moreover, the Cu-laden plant was shown to be an efficient antibacterial agent against the bacteria Escherichia coli and Staphylococcus aureus, the results being slightly better in the former case. Such an activity is enabled only via the interaction of the adsorbed ions effectively distributed within the biological matrix of the plant with bacterial cells. Thus, the sustainable resource can be used both for the treatment of wastewater and, after an effective embedment of metal ions, for the fight against microbes. Graphical abstract

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New perception of Zn(II) and Mn(II) removal mechanism on sustainable sunflower biochar from alkaline batteries contaminated water

Cited by 29 publications

References 57 publications

Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Screening the functions of modified rice straw biochar for adsorbing manganese from drinking water

Biosorption of selected heavy metals on wild thyme to prepare antibacterial agents

Triggering antibacterial activity of a common plant by biosorption of selected heavy metals

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