Solvent impregnated resin a potential alternative material for separation dyes, metal and phenolic compounds: A review

Tamang, Aditya Moktan; Singh, Nitesh; Chandraker, Sandip Kumar; Ghosh, Mithun Kumar

doi:10.1016/j.crgsc.2021.100232

Cited by 16 publications

(6 citation statements)

References 47 publications

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“…Therefore, an alternative approach was sought. Solvent-impregnated resins (SIRs), wherein an extractant is immobilized onto a polymeric support via hydrophobic interactions, can provide an effective means of avoiding third phase formation, and have seen applications in both sensing and separations. − We thus physically immobilized receptors cis - 2 and trans - 2 onto macroporous poly(styrene) resin Amberlite XAD4 (denoted as PS hereafter) via solvent impregnation . When 15 mg of PS was exposed to 3 mg of receptors in 5 vol % (v/v) of acetonitrile ACN/H 2 O at 60 °C for 1 h, the resins underwent a color change from opaque to amber (Figure inset).…”

Section: Resultsmentioning

confidence: 99%

Direct Extraction of Sodium Hydroxide by Calix[4]pyrrole-Based Ion-Pair Receptors

et al. 2023

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Described in this work are calix [4]pyrrole-based ionpair receptors, cis/trans-1 and cis/trans-2, designed for the extraction of sodium hydroxide. An X-ray diffraction analysis of a single crystal of the cis-1•NaOH isomer isolated from a mixture of cis/trans-1 revealed a unique dimeric supramolecular structure. An average dimer in toluene-d 8 solution was inferred on the basis of diffusion-ordered spectroscopy (DOSY). Support for the proposed stoichiometry came from density functional theory (DFT) calculations. The structural stability of the dimeric cis-1•NaOH complex in toluene solution was further confirmed by ab initio molecular dynamics (AIMD) simulation with explicit representation of solvent. Under conditions of liquid−liquid extraction (LLE), purified receptors cis-and trans-2 were both found to remove NaOH from a pH 11.01 aqueous source phase into toluene with extraction efficiencies (E%) of 50−60% when used equimolar to NaOH. However, in all cases, precipitation was observed. Complexities associated with precipitation could be avoided by immobilization of the receptors onto a chemically inert poly(styrene) resin by means of solvent impregnation. The use of solvent-impregnated resins (SIRs) eliminated precipitation in solution while retaining the extraction efficiency toward NaOH. This allowed both the pH and salinity of the alkaline source phase to be lowered.

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Section: Resultsmentioning

confidence: 99%

Direct Extraction of Sodium Hydroxide by Calix[4]pyrrole-Based Ion-Pair Receptors

et al. 2023

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“…The phytogenic CuNPs effectively degraded Congo red dye within 2 h with a pseudo-first-order kinetics. The phytogenic nanoparticles with catalytic activity can be further coupled with solvent impregnated resin (SIR) for their potential application like removal and sensing of refractory pollutants such as dye, metal ions and phenolic compounds from industrial effluents ( Tamang et al, 2022 ). Additionally, these nanoparticles can be functionalized with bioactive principles, drugs, targeting ligands and/or contrast agents for extending their applications as antimicrobial, anticancer, antioxidant, tissue engineering and theranostic agents ( Chandraker et al, 2021b ; Ghosh et al, 2022b ).…”

Section: Resultsmentioning

confidence: 99%

Leucophyllum frutescens mediated synthesis of silver and gold nanoparticles for catalytic dye degradation

et al. 2022

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The application of nanotechnology is gaining worldwide attention due to attractive physico-chemical and opto-electronic properties of nanoparticles that can be also employed for catalytic dye degradation. This study reports a phytogenic approach for fabrication of silver (AgNPs) and gold nanoparticles (AuNPs) using Leucophyllum frutescens (Berl.) I. M. Johnst (Scrophulariaceae) leaf extract (LFLE). Development of intense dark brown and purple color indicated the synthesis of AgNPs and AuNPs, respectively. Further characterization using UV-visible spectroscopy revealed sharp peak at 460 nm and 540 nm for AgNPs and AuNPs, respectively that were associated to their surface plasmon resonance. High resolution transmission electron microscope (HRTEM) revealed the spherical shape of the AgNPs, whereas anisotropic AuNPs were spherical, triangular and blunt ended hexagons. The majority of the spherical AgNPs and AuNPs were ∼50 ± 15 nm and ∼22 ± 20 nm, respectively. Various reaction parameters such as, metal salt concentration, temperature and concentration of the leaf extract were optimized. Maximum synthesis of AgNPs was obtained when 5 mM for AgNO3 reacted with 10% LFLE for 48 h at 50°C. Likewise, AuNPs synthesis was highest when 2 mM HAuCl4 reacted with 10% LFLE for 5 h at 30°C. Energy dispersive spectroscopy (EDS) showed phase purity of both the nanoparticles and confirmed elemental silver and gold in AgNPs and AuNPs, respectively. The average hydrodynamic particles size of AgNPs was 34.8 nm while AuNPs was 140.8 nm as revealed using dynamic light scattering (DLS) that might be due to agglomeration of smaller nanoparticles into larger clusters. ZETA potential of AgNPs and AuNPs were 0.67 mV and 5.70 mV, respectively. X-ray diffraction (XRD) analysis confirmed the crystallinity of the nanoparticles. Fourier transform infrared spectroscopy (FTIR) confirmed that various functional groups from the phytochemicals present in LFLE played a significant role in reduction and stabilization during the biogenic synthesis of the nanoparticles. The bioreduced AgNPs and AuNPs catalytically degraded Rhodamine B dye (RhB) in presence of UV-light with degradation rate constants of 0.0231 s−1 and 0.00831 s−1, respectively. RhB degradation followed a first order rate kinetics with 23.1 % and 31.7% degradation by AgNPs and AuNPs, respectively.

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“…The impregnated resin samples with the two impregnation methods were weighed to determine the total weight of the impregnated resin with the solvent, where results of this weight in grams were represented against the percent of initial tributyl phosphate (TBP) concentration in figures (1,2) for the wet and dry impregnation respectively.…”

Section: Solvent Concentration Effectmentioning

confidence: 99%

TBP-Impregnated Siplite LX-16 Polymeric Resin for Thorium Extraction from Nitrate Medium, Part A: Preparation and Extraction Performance

Elbatrek

2023

Arab Journal of Nuclear Sciences and Applications

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Impregnation of tri butyl phosphate (TBP) solvent into polymeric resin, commercially known as Siplite LX-16, using the two commonly used dry and wet methods were applied. The suitable conditions for wet impregnation were 70% solvent concentration in kerosene with solvent/resin (S/R) ratio of 6.0 and left 24 hours for impregnation at room temperature before separation and washing with hot water then drying overnight at a temperature of 50 o C, where at these conditions the resin impregnated with 1.99 g TBP/g resin. In case of dry impregnation requires solvent concentration was 55% in acetone at S/R ratio of 5.0 and shaking for 4.0 h then left in the air till complete volatilization of acetone and finally drying overnight at a temperature of 50 o C, where at these conditions one resin impregnated with 2.057 g TBP. Results of testing performance of the prepared TBP impregnated Siplite LX-16 resin against thorium extraction from nitrate medium reveal that extraction efficiency of 70.7% was achieved after 30 min. which can be enough to attain equilibrium. Thorium extraction from the nitrate medium requires high free acidity rather than nitrate from salts (salting out agent addition), however, for economical consideration and reagent saving, it can practically conduct the extraction at free normality of 3.0 N at which 62% extraction efficiency could be achieved at the condition of initial thorium concentration of 2.0 g/l, aqueous/resin "A/R" ratio of 25 and the phases contacted for 30 min. The calculated theoretical saturation capacity for the prepared TBP impregnated Siplite LX-16 resin was 292.7 mg Th / g impregnated resin which is considered high capacity, so it was recommended to use solutions containing high levels of thorium concentrations reached to several grams per liter to decrease the treated volumes at shorter time as well as verify almost complete saturation.

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Solvent impregnated resin a potential alternative material for separation dyes, metal and phenolic compounds: A review

Cited by 16 publications

References 47 publications

Direct Extraction of Sodium Hydroxide by Calix[4]pyrrole-Based Ion-Pair Receptors

Direct Extraction of Sodium Hydroxide by Calix[4]pyrrole-Based Ion-Pair Receptors

Leucophyllum frutescens mediated synthesis of silver and gold nanoparticles for catalytic dye degradation

TBP-Impregnated Siplite LX-16 Polymeric Resin for Thorium Extraction from Nitrate Medium, Part A: Preparation and Extraction Performance

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