Enhanced adsorption of three fluoroquinolone antibiotics using polypyrrole functionalized Calotropis gigantea fiber

Duan, Wenzhen; Li, Minghan; Xiao, Weilong; Wang, Ningfen; Niu, Bihui; Zhou, Lei; Zheng, Yian

doi:10.1016/j.colsurfa.2019.04.068

Cited by 32 publications

(5 citation statements)

References 66 publications

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“…This means that surface adsorption and intraparticle diffusion occur simultaneously. This can be attributed primarily to the outer surface of the adsorbents in two stages, and then one by diffusion into the pores [64].…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Fluoroquinolones Antibiotics Adsorption Onto Polymer Coated Magnetic Nanoparticular Activated Carbon

Uğurlu

Osman

Vai̇zoğullar

et al. 2021

Int. J. Eng. Sci. Tech

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The present study investigated the adsorption of molecular fluoroquinolone (FLQ) from aqueous solution onto active carbon (AC), magnetic activated carbon (MagAC), styrene-butadiene styrene magnetic activated carbon (SBS/MagAC) and poly charbon magnetic activated carbon (PC/MagAC) as adsorbent materials. The process optimization was carried by investigating the effects of pH, temperature, solid-liquid ratio, adsorbent type and initial concentration of FLQ. The data showed that adsorption reached equilibrium in as little as one hour. The adsorption cacapcity was comparatively less at low pH values than at approximately pH 5.0. The results also showed that the polymer coated magnetic materials did not perform very well at high pH values. However, all the materials performed well at room temperature when the situation was examined in terms of kinetics. It was also observed that AC, SBS/MagAC and PC/MagAC are more effective than MagAC to remove FLQ from aqueous medium. The kinetic data support pseudo-second-order model (r2 ⩾ 0.95) but showed very poor fit for pseudo-first-order model (r2 ≤ 0.90). Intra-particle model also showed that there were two separate stages in sorption process, namely, external diffusion and the diffusion of inter-particle. Adsorption isotherms for all adsorbends were fitted to Langmuire models more effectively than Freundlich models (r2 ⩾ 0.98). Thermodynamics parameters such as; free energy (ΔG0), enthalpy (ΔH0) and entropy (ΔS0) were also calculated. In conclusion, our results revealed that FLQ can be removed more easily from the aqueous medium by using magnetic and polymeric material.

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Section: Adsorption Isothermsmentioning

confidence: 99%

Fluoroquinolones Antibiotics Adsorption Onto Polymer Coated Magnetic Nanoparticular Activated Carbon

Uğurlu

Osman

Vai̇zoğullar

et al. 2021

Int. J. Eng. Sci. Tech

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“…They reported that the modification of MWCNT by Ppy has significantly improved the maximum adsorption capacity and that the thermodynamic parameters suggested endothermic and favorable adsorption. Further, polypyrrole-based adsorbent-namely, polypyrrolefunctionalized Calotropis gigantea fibers are being successfully used for the removal of three fluoroquinolone antibiotics from wastewater, as reported by [127]. The prepared adsorbent exhibited superior adsorption capacities for the investigated antibiotics.…”

Section: Polypyrrole-based Nanocomposites As Adsorbentsmentioning

confidence: 95%

Conductive Polymers and Their Nanocomposites as Adsorbents in Environmental Applications

et al. 2021

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Proper treatment and disposal of industrial pollutants of all kinds are a global issue that presents significant techno-economical challenges. The presence of pollutants such as heavy metal ions (HMIs) and organic dyes (ODs) in wastewater is considered a significant problem owing to their carcinogenic and toxic nature. Additionally, industrial gaseous pollutants (GPs) are considered to be harmful to human health and may cause various environmental issues such as global warming, acid rain, smog and air pollution, etc. Conductive polymer-based nanomaterials have gained significant interest in recent years, compared with ceramics and metal-based nanomaterials. The objective of this review is to provide detailed insights into different conductive polymers (CPs) and their nanocomposites that are used as adsorbents for environmental remediation applications. The dominant types of CPs that are being used as adsorbent materials include polyaniline (PANI), polypyrrole (Ppy), and polythiophene (PTh). The various adsorption mechanisms proposed for the removal of ODs, HMIs, and other GPs by the different CPs are presented, together with their maximum adsorption capacities, experimental conditions, adsorption, and kinetic models reported.

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“…Due to the continuous discharge of antibiotics derived from anthropogenic (urban, industrial, and agricultural) activities, environmentally relevant concentrations of ENR in water bodies are often found; consequently, its degradation or removal by means of cost-effective and environmentally friendly methodologies is necessary. Several technologies, including ozonation [ 6 ]; reverse osmosis and nanofiltration [ 7 ]; electrochemical advanced oxidation processes, such as anodic oxidation with electrogenerated H 2 O 2 , Fenton, electro-Fenton, and photoelectro-Fenton [ 8 , 9 ]; photocatalytic degradation [ 10 ]; and adsorption [ 11 , 12 , 13 , 14 ] have been successfully used for the degradation/removal of ENR from water and wastewater. Of these methods, adsorption is widely used in industry to remove organic and inorganic pollutants.…”

Section: Introductionmentioning

confidence: 99%

Outstanding Enrofloxacin Removal Using an Unmodified Low-Cost Sorbent Prepared from the Leaves of Pyracantha koidzumii

2022

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Increasing discharges of synthetic antimicrobial agents from industrial and municipal sewage, as well as from agricultural runoffs into water bodies, is still a global challenge. Here, an unmodified low-cost sorbent was prepared in an ecofriendly manner from Pyracantha koidzumii leaves for the removal of enrofloxacin (ENR). Sorbent characterization was accomplished using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), BET surface area, zeta potential, and point of zero charge. Biosorption assays were carried out via batch mode concerning the impact of adsorbent dosage, contact time, solution pH, solution ionic strength, adsorbate concentration, and temperature. In general, ENR adsorption was significantly correlated with pH and ionic strength. At a neutral pH, the sorbent had a theoretical maximal ENR uptake of 138.89 mg/g. However, the adsorption capacity was significantly affected by the presence of high concentrations of divalent cations (Ca2+ and Mg2+). The findings from the kinetics and isotherms showed that the pseudo-second-order kinetic and Langmuir isotherm models best fit the experimental data. Electrostatic interactions, hydrogen bonding, and π-π stacking were the most important mechanisms of adsorption of ENR onto the P. koidzumii sorbent. Overall, this study suggests the promising application of this agricultural residue for the efficient removal of ENR from water.

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Enhanced adsorption of three fluoroquinolone antibiotics using polypyrrole functionalized Calotropis gigantea fiber

Cited by 32 publications

References 66 publications

Fluoroquinolones Antibiotics Adsorption Onto Polymer Coated Magnetic Nanoparticular Activated Carbon

Fluoroquinolones Antibiotics Adsorption Onto Polymer Coated Magnetic Nanoparticular Activated Carbon

Conductive Polymers and Their Nanocomposites as Adsorbents in Environmental Applications

Outstanding Enrofloxacin Removal Using an Unmodified Low-Cost Sorbent Prepared from the Leaves of Pyracantha koidzumii

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