Macrocyclic pyridone pentamer‐modified polystyrene nanofiber for selective metal ion removal from aqueous solution

Abstract

Macrocyclic pyridone pentamer‐functionalized nanofiber was fabricated through electrospinning for selective heavy metal cation removal from aqueous solution. Parameters influencing the adsorption process, including contact time, initial metal cation concentration, and solution pH, were evaluated, and the optimized adsorption condition was figured out accordingly. The adsorption study demonstrated that the process followed the pseudosecond‐order kinetic models and Langmuir isothermal model. The selectivity of the nanofiber toward metal cations was studied, and it was found that it showed a high adsorption affinity toward Pb2+ over other metal cations such as Cu2+, Ca2+, Co2+, Zn2+, and Ni2+. The nanofiber could be easily regenerated by deadsorption with ethylenediaminetetraacetic acid solution. The above results indicate the potential application of the nanofiber in the metal cation separation field.

Review of the Recent Advances in Electrospun Nanofibers Applications in Water Purification

“…In the last decade, many researchers have focused their work on removing the inorganic pollutants from wastewater using nanofibers fabricated via the electrospinning technique, as shown in Table 2 [7][8][9]. As such, multifunctional electrospun nanofibers have been fabricated and widely utilized in the last few years to remove various types of inorganic pollutants, such as lanthanides and actinides [7,93,94], Pb 2+ (with other metals ions) [95][96][97][98][99][100][101][102][110][111][112][113][114][115]118,119,121], Cu 2+ [8,9,[102][103][104][105]117,120], Cd 2+ [106-108], Ni 2+ [109], Cd 2+ , Zn 2+ [116], Ca 2+ , Mg 2+ [122], heavy metals [123,124], Cr 6+ [125][126][127][128][129][130][131][134][135]…”

“…Additionally, a polycaprolactone nanofibrous material was made by the electrospinning approach, followed by functionalization with clay minerals and zeolite nanoparticles, and this was applied in the removal of Pb 2+ from an aqueous solution [97]. The removal of Pb 2+ , along with other metal cations such as Cu 2+ , Ca 2+ , Co 2+ , Zn 2+ , and Ni 2+ , was investigated using a macrocyclic pyridone pentamer-modified nanofiber prepared via electrospinning [98]. The regeneration of the fabricated nanofibers was carried out successfully using an ethylenediaminetetraacetic acid solution [98].…”

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

“…For these reasons, it can be easily used for the adsorption of heavy metal ions from wastewater. 22,25,29,[37][38][39][40] Today, polymer science and technology are focused on composites made from renewable resources. Biocomposites produced from renewable resources have gained importance as they are environmentally friendly materials due to their biodegradable nature.…”

“…For these reasons, it can be easily used for the adsorption of heavy metal ions from wastewater. 22,25,29,37–40…”

Selective metal ion transport through polymer inclusion membrane containing surfactin as carrier reagents

“…As far as we know, SF‐facilitated metal cation transport is rarely reported. With our continuous interest in selective metal cation recognition and removal, the SF‐facilitated metal cation transport across PIMs was studied in this article.…”