Removal of lead from aqueous solution using electrospun nanofibers: preparation, characterization, adsorption isotherm, and kinetic study

Turan, Kübra; Kalfa, Orhan Murat

doi:10.1039/d2ay00691j

Cited by 5 publications

(3 citation statements)

References 51 publications

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“…The Cr(VI) was chosen as a heavy metal ion model to characterize the heavy metal ions’ adsorption performance. As reported in the literature [ 40 , 41 ], the adsorption of heavy metal ions in water is highly dependent on the pH. The EVOH/PANI composite NFAs were immersed in Cr(VI) solutions with various pH values ranging from 1 to 6.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of EVOH/PANI Composite Nanofibrous Aerogels for the Removal of Dyes and Heavy Metal Ions

Jun-shan

Song

2023

Materials

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Water pollution caused by the leakage and discharge of pollutants, such as dyes and heavy metal ions, can cause serious damage to the environment and human health. Therefore, it is important to design and develop adsorbent materials that are efficient and multifunctional for the removal of these pollutants. In this work, poly(vinyl alcohol-co-ethylene) (EVOH)/polyaniline (PANI) composite nanofibrous aerogels (NFAs) were fabricated via solution oxidation and blending. The aerogels were characterized by a scanning electron microscope, Fourier transform infrared spectrometry, a contact angle measuring instrument and a universal testing machine. The influences of the introduction of PANI nanorods on the structural properties of aerogels were investigated, and the adsorption performance of aerogels was also studied. The results showed that the introduction of PANI nanorods filled the fibrous network structure, reduced porosity, increased surface hydrophilicity and improved compressive strength. Furthermore, EVOH/PANI composite NFAs possess good adsorption performances for dyes and heavy metal ions: The adsorption capacities of methyl orange and chromium ions (VI) are 73.22 mg/g and 115.54 mg/g, respectively. Overall, the research suggests that EVOH/PANI NFAs have great potential as efficient and multifunctional adsorbent materials for the removal of pollutants from water.

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Section: Resultsmentioning

confidence: 99%

Fabrication of EVOH/PANI Composite Nanofibrous Aerogels for the Removal of Dyes and Heavy Metal Ions

Jun-shan

Song

2023

Materials

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“…† Table 1 shows that the PSO model has a higher determination coefficients (R 2 ) compared to the PFO model 14 and the theoretical adsorption capacity obtained by the PSO model was closer to the actual adsorption capacity, indicating that the adsorption of SCTPs on HPD-500 resin was more consistent with the PSO model. 11,14,47 The data were tted using the IPD kinetic equation and the relevant tting parameters are listed in Table 2. As shown in Fig.…”

Section: Determination Of Total Polyphenol Contentmentioning

confidence: 99%

Precise evaluation of batch adsorption kinetics of plant total polyphenols based on a flow-injection online spectrophotometric method

Guo,

Muhammad,

Aimaiti

et al. 2024

Anal. Methods

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“…Polymeric fibers have also been utilized to remove lead mainly because they have a larger surface area and greater mechanical stability than other polymeric configurations. Thus, polymeric fibers manufactured by electrospinning made from unmodified polyvinyl alcohol (PVA) and modified with a biomaterial ( Malva sylestris seeds) have reached a lead adsorption capacity of 444.2 mg g −1 and 588.2 mg g −1 , respectively [ 14 ]. Additionally, fibers with an average diameter of 458 nm made of polyacrylonitrile modified with magnetite allowed the extraction of lead from aqueous solutions [ 15 ] with a maximum capacity of 156 mg g −1 .…”

Section: Introductionmentioning

confidence: 99%

Modified Polysulfone Nanofibers for the Extraction and Preconcentration of Lead from Aqueous Solutions

et al. 2023

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Since lead is a highly toxic metal, it is necessary to detect its presence in different samples; unfortunately, analysis can be complicated if the samples contain concentrations below the detection limit of conventional analytical techniques. Solid phase extraction is a technique that allows the carrying out of a pre-concentration process and thus makes it easy to quantify analytes. This work studied the efficiency of sorption and preconcentration of lead utilizing polysulfone (PSf) fibers grafted with acrylic acid (AA). The best conditions for Pb(II) extraction were: pH 5, 0.1 mol L−1 of ionic strength, and 40 mg of sorbent (70% of removal). The sorbed Pb(II) was pre-concentrated by using an HNO3 solution and quantified using flame atomic absorption spectrometry. The described procedure was used to obtain a correlation curve between initial concentrations and those obtained after the preconcentration process. This curve and the developed methodology were applied to the determination of Pb(II) concentration in a water sample contained in a handmade glazed clay vessel. With the implementation of the developed method, it was possible to pre-concentrate and determine a leached Pb(II) concentration of 258 µg L−1.

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Removal of lead from aqueous solution using electrospun nanofibers: preparation, characterization, adsorption isotherm, and kinetic study

Abstract: Lead is one of the most hazardous toxic heavy metal ions from industrial wastewater. The removal of Pb(II) from an aqueous environment is an extremely essential topic due to acquiring...

Cited by 5 publications

References 51 publications

Fabrication of EVOH/PANI Composite Nanofibrous Aerogels for the Removal of Dyes and Heavy Metal Ions

Fabrication of EVOH/PANI Composite Nanofibrous Aerogels for the Removal of Dyes and Heavy Metal Ions

Precise evaluation of batch adsorption kinetics of plant total polyphenols based on a flow-injection online spectrophotometric method

Modified Polysulfone Nanofibers for the Extraction and Preconcentration of Lead from Aqueous Solutions

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