Daptomycin adsorption on magnetic ultra-fine wood-based biochars from water: Kinetics, isotherms, and mechanism studies

Ai, Tian; Jiang, Xiaojun; Liu, Qingyu; Lv, Linlin; Wu, Haitao

doi:10.1016/j.biortech.2018.10.039

Cited by 87 publications

(17 citation statements)

References 40 publications

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“…It is worth noting that the stability of Fe 3 O 4 supporting materials was greatly affected by the pH value, and it was unstable in weakly acidic and weakly basic solutions (Ai et al., 2019). Considering that most hospital wastewaters were acidic, pH 4.0 was selected for use in the following adsorption experiment.…”

Section: Resultsmentioning

confidence: 99%

“…However, the increased pH (pH > 6.0) gradually increased electrostatic repulsion between the adsorptive anion (IBPor SMX -) and the biochar surface, which decreased adsorption efficiency. It is worth noting that the stability of Fe 3 O 4 supporting materials was greatly affected by the pH value, and it was unstable in weakly acidic and weakly basic solutions (Ai et al, 2019). Considering that most hospital wastewaters were acidic, pH 4.0 was selected for use in the following adsorption experiment.…”

Section: Effect Of Solution Phmentioning

confidence: 99%

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Methanol-modified ultra-fine magnetic orange peel powder biochar as an effective adsorbent for removal of ibuprofen and sulfamethoxazole from water

Jiang

Zhong

et al. 2020

Adsorption Science & Technology

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The efficient capture of drug metabolites from aquatic environments has been recognized as an essential task for environmental protection. A methanol-modified ultra-fine magnetic biochar (CH3OH-OP-char/Fe3O4) was prepared from orange peel powder using ball milling, and its adsorption behaviors for ibuprofen and sulfamethoxazole were evaluated. The obtained materials were characterized by laser particle size analyzer, EA, ICP-OES, VSM, BET, TG-DTG, and FTIR. Furthermore, the experiments were conducted to study the vital operating parameters such as solution pH (2.0–11.0), contact time (0.5–240 min), initial drug concentration (0.5–100 mg/L), and temperatures (15–40°C) on the removal process. The results showed that the adsorption of IBP and sulfamethoxazole on CH3OH-OP-char/Fe3O4 was highly pH-dependent. Kinetic studies indicated that physisorption was the dominant adsorption mechanism, and film diffusion played a vital role in adsorption onto CH3OH-OP-char/Fe3O4. Equilibrium data were fitted well with the Langmuir isotherm model, implying monolayer adsorption. The adsorption process was spontaneous and endothermic due to the thermodynamic calculation, and high temperatures were favorable to the adsorption process.

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Section: Resultsmentioning

confidence: 99%

Section: Effect Of Solution Phmentioning

confidence: 99%

Methanol-modified ultra-fine magnetic orange peel powder biochar as an effective adsorbent for removal of ibuprofen and sulfamethoxazole from water

Jiang

Zhong

et al. 2020

Adsorption Science & Technology

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“…As shown in Table 7, the negative ΔG° values (−14.023 to −18.875 KJ/mol) indicate that the adsorption of aniline on the biochar is spontaneous [41]. The positive values of ΔH° (2.508-3.130 kJ/mol) indicate that all adsorption processes of aniline are endothermic.…”

Section: Effects Of Ph Adsorption Temperature and Dosage Of Adsorbentmentioning

confidence: 96%

Adsorption of aniline by magnetic biochar with high magnetic separation efficiency

Gu¹,

Xue

Zhang

2021

Environmental Pollutants and Bioavailability

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The coprecipitation method was used to produce magnetic cotton straw biochar (MCS). Elemental analysis, FTIR, XRD, SEM, BET and magnetization curves were used to characterize MCS and CS. The results show that the MCS had excellent magnetic separation properties. When the pH value was higher than 5, the pH of the aniline solution had little effect on the adsorption capacity of MCS and CS. However, with increasing temperature, the adsorption capacity increased significantly. The maximum adsorption capacities of MCS and CS for aniline were 38.67 mg/g and 42.57 mg/g, respectively. The adsorption process of aniline was spontaneous, endothermic, and involved monolayer sorption and chemical adsorption. The adsorption capacity was due to the presence in magnetic biochar of phenolic hydroxyls and H-bond donors that adsorbed aniline. Therefore, the application of MCS presents good prospects for the removal of toxic and refractory aniline from water.

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“…This result indicates that the number of free sites was significantly higher than the number of adsorbed dye molecules and reveals that the adsorption between dyes and biosorbents was physisorption which leads to a slow adsorption process. Furthermore, the pseudo-first-order model shows the effect of adsorption at the solidliquid interface, indicating that the mushrooms had a certain affinity to the dye molecules (31).…”

Section: Evaluation Of Biosorption Kineticsmentioning

confidence: 99%

Biosorption studies of mushrooms for two typical dyes

Yıldırım

Acay

2020

Journal of the Turkish Chemical Society Section A: Chemistry

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This study investigated the adsorption behaviour of two cationic dyes, methylene blue (MB) and malachite green (MG) onto Pleurotus ostreatus, Armillaria tabescens, and Morchella conica mushrooms. The effects of contact time, initial dye concentration, and solution pH (3-11) were also determined. The adsorption on all mushrooms attained equilibrium within 120 min for both MB and MG. To evaluate the experimental kinetics data, the pseudo-first-order, pseudo-second-order, and intraparticle diffusion kinetics equations were utilised. The pseudo-first-order kinetic model demonstrated a good fit with all adsorption kinetics. The Langmuir and Freundlich isotherm models were used to analyse the mechanism of the adsorption isotherm. The adsorption equilibrium isotherm was in a good agreement with the Freundlich model. Thermodynamic parameters such as ΔH enthalpy variation, ΔS entropy variation, and ΔG free Gibbs energy variation were calculated at 303-323 K. The results suggested that the Pleurotus ostreatus mushroom was the most suitable adsorbent for both cationic dyes' removal.

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Daptomycin adsorption on magnetic ultra-fine wood-based biochars from water: Kinetics, isotherms, and mechanism studies

Cited by 87 publications

References 40 publications

Methanol-modified ultra-fine magnetic orange peel powder biochar as an effective adsorbent for removal of ibuprofen and sulfamethoxazole from water

Methanol-modified ultra-fine magnetic orange peel powder biochar as an effective adsorbent for removal of ibuprofen and sulfamethoxazole from water

Adsorption of aniline by magnetic biochar with high magnetic separation efficiency

Biosorption studies of mushrooms for two typical dyes

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