The synergy of mercury biosorption through Brevundimonas sp. IITISM22: Kinetics, isotherm, and thermodynamic modeling

Singh, Shalini; Kumar, Vipin; Gupta, Pratishtha; Ray, Madhurya; Kumar, Ashok

doi:10.1016/j.jhazmat.2021.125653

Cited by 40 publications

(5 citation statements)

References 70 publications

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“…The rate of adsorption capacity of the living (6.35 mg/g) and non-living biomass (7.26 mg/g) at 30 min occupied 86.00% and 86.84% and 7.27 mg/g and 8.36 mg/g towards the equilibrium adsorption capacity, respectively. Other researchers have reported similar results [ 53 , 54 ]. Just as discussing the effects of pH, dosage and initial metal concentration on the adsorption capacity, the dead biomass was significantly higher than live biomass at any time point of the same sampling time, as displayed in Table 2 .…”

Section: Resultssupporting

confidence: 83%

Adsorption of Cd (II) by a novel living and non-living Cupriavidus necator GX_5: optimization, equilibrium and kinetic studies

Xiao

Shao

et al. 2023

BMC Chemistry

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Biosorbents have been extensively studied for heavy metal adsorption due to their advantages of low cost and high efficiency. In the study, the living and non-living biomass of Cupriavidus necator GX_5 previously isolated were evaluated for their adsorption capacity and/or removal efficiency for Cd (II) through batch experiments, SEM and FT-IR investigations. The maximum removal efficiency rates for the live and dead biomass were 60.51% and 78.53%, respectively, at an optimum pH of 6, a dosage of 1 g/L and an initial Cd (II) concentration of 5 mg/L. The pseudo-second-order kinetic model was more suitable for fitting the experimental data, indicating that the rate-limiting step might be chemisorption. The Freundlich isotherm model fit better than the Langmuir isotherm model, implying that the adsorption process of both biosorbents was heterogeneous. FT-IR observation reflected that various functional groups were involved in Cd (II) adsorption: –OH, –NH, C=O, C–O and C–C groups for the living biomass and –OH, –NH, C–H, C = O, C–N and N–H groups for the dead biomass. Our results imply that non-living biosorbents have a higher capacity and stronger strength for absorbing Cd (II) than living biomass. Therefore, we suggest that dead GX_5 is a promising adsorbent and can be used in Cd (II)-contaminated environments.

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Section: Resultssupporting

confidence: 83%

Adsorption of Cd (II) by a novel living and non-living Cupriavidus necator GX_5: optimization, equilibrium and kinetic studies

Xiao

Shao

et al. 2023

BMC Chemistry

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show abstract

“…The rate of adsorption capacity of the living (6.35 mg/g) and non-living biomass (7.26 mg/g) at 30 min occupied 86.00% and 86.84% and 7.27 mg/g and 8.36 mg/g towards the equilibrium adsorption capacity, respectively. Other researchers have reported similar results [49,50]. Just as discussing the effects of pH, dosage and initial metal concentration on the adsorption capacity, the dead biomass was signi cantly higher than live biomass at any time point of the same sampling time, as displayed in Table 2.…”

Section: Effect Of Adsorption Parameters On Biosorptionsupporting

confidence: 67%

Adsorption of Cd (II) by a novel living and non-living Cupriavidus necator GX_5: optimization, equilibrium and kinetic Studies

Xiao

Shao

et al. 2023

Preprint

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Biosorbents have been extensively studied for heavy metal adsorption due to their advantages of low cost and high efficiency. In the study, the living and non-living biomass of Cupriavidus necator GX_5 previously isolated were evaluated for their adsorption capacity and/or removal efficiency for Cd (II) through batch experiments, SEM and FT-IR investigations. The maximum removal efficiency rates for the live and dead biomass were 60.51% and 78.53%, respectively, at an optimum pH of 6, a dosage of 1 g/L and an initial Cd (II) concentration of 5 mg/L. The pseudo-second-order kinetic model was more suitable for fitting the experimental data, indicating that the rate-limiting step might be chemisorption. The Freundlich isotherm model fit better than the Langmuir isotherm model, implying that the adsorption process of both biosorbents was heterogeneous. FT-IR observation reflected that various functional groups were involved in Cd (II) adsorption: -OH, -NH, C=O, C-O and C-C groups for the living biomass and -OH, -NH, C-H, C=O, C-N and N-H groups for the dead biomass. Our results imply that non-living biosorbents have a higher capacity and stronger strength for absorbing Cd (II) than living biomass. Therefore, we suggest that dead GX_5 is a promising adsorbent and can be used in Cd (II)-contaminated environments.

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“… 159 Another study showed that Brevundimonas species IITISM22 has the potential to remove Hg ions, achieving a maximum adsorption capacity of 666.6 mg g −1 at pH 6.5. 160 Additionally, yeast Yarrowia spp., 161 Sargassum glaucescens (brown algae), 162 Sargassum bevanom , 163 Chlorella vulgaris , 164 etc. show promise as effective sorbents for Hg( ii ) ions.…”

Section: Micro-organism-based Adsorbentsmentioning

confidence: 99%

Comprehensive assessment of carbon-, biomaterial- and inorganic-based adsorbents for the removal of the most hazardous heavy metal ions from wastewater

Sheraz,

Shah,

Haleem

et al. 2024

RSC Adv.

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The synergy of mercury biosorption through Brevundimonas sp. IITISM22: Kinetics, isotherm, and thermodynamic modeling

Cited by 40 publications

References 70 publications

Adsorption of Cd (II) by a novel living and non-living Cupriavidus necator GX_5: optimization, equilibrium and kinetic studies

Adsorption of Cd (II) by a novel living and non-living Cupriavidus necator GX_5: optimization, equilibrium and kinetic studies

Adsorption of Cd (II) by a novel living and non-living Cupriavidus necator GX_5: optimization, equilibrium and kinetic Studies

Comprehensive assessment of carbon-, biomaterial- and inorganic-based adsorbents for the removal of the most hazardous heavy metal ions from wastewater

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