Transport of phenol through polymer inclusion membrane with N,N-di(1-methylheptyl) acetamide as carriers from aqueous solution

Meng, Xiaorong; Gao, Chenguang; Wang, Lei; Wang, Xudong; Tang, Weiting; Chen, He’nan

doi:10.1016/j.memsci.2015.06.037

Cited by 40 publications

(8 citation statements)

References 24 publications

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“…The hydrophilic–lipophilic balance of membrane is a preferred situation for metal separation processes in the PIM‐based process . However, the disordering of the balance in the direction of raising or diminishing causes to the decrease of transport efficiency . Micromorphological structure formations on the feed phase‐IPM interface intervals can be explained by the formation and accumulation of the RTILsHCrO 4 adduct via ion exchange mechanism and deformation of the membrane surface depending on chemical potential difference based pressure variations between aqueous phases.…”

Section: Resultsmentioning

confidence: 99%

The comprehensive investigation of the room temperature ionic liquid additives in PVC based polymer inclusion membrane for Cr(VI) transport

Turgut

Eyüpoğlu

Kumbasar

2018

Vinyl Additive Technology

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This study is to perform the comprehensive investigation of PVC based ionic plasticized membrane (IPM) production by using room temperature ionic liquid (RTIL)‐based additives and the membrane application of selective Cr(VI) removal. Some significant parameters related to membrane structures that are membrane thickness, plasticizer rate, and type, RTILs rate, and type, the average molecular weight of PVC were studied to define the excellent polymeric membrane film composition. After that, the PVC based polymeric film used in the Cr(VI) transport and initial mass transfer coefficient (Jo) were about 3.57 × 10−7 mol s−1 m−2 by decyl substituted RTIL as an additive. Also, optimized membrane transport process has been considered as selective enough for Cr(VI) in the presence of the other heavy metal ions. Surface characterizations of the membranes have been performed to clarify the structural and the morphological assessment of IPMs at initial and end of Cr(VI) transport by SEM‐EDX, AFM, contact angle measurement and found a good relationship between the molecular structure of RTIL additive and membrane morphology. As we know that lots of researchers are still trying to find environmentally friendly, inexpensive and straightforward processes to remove toxic substances from industrial effluents or natural sources. At that point, our results can open a gate for cheap, novel and environmentally friendly Cr(VI) removal by PVC based membrane. J. VINYL ADDIT. TECHNOL., 25:E107–E119, 2019. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

The comprehensive investigation of the room temperature ionic liquid additives in PVC based polymer inclusion membrane for Cr(VI) transport

Turgut

Eyüpoğlu

Kumbasar

2018

Vinyl Additive Technology

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“…Such type of models are however beyond the scope of this manuscript. The problems mentioned above with model fitting using the equation proposed by Danesi [1,2] can be solved by the application of the model presented by Equations (8) and (9). Examples of the model fit to the experimental data are shown in Figure 7.…”

Section: Number Of Experimental Points In Regression Analysismentioning

confidence: 99%

“…Moreover, the performed statistical tests (runs test and Shapiro-Wilk test) confirmed that the runs are random and residuals are normally distributed. Figure 8 shows the correlation between the permeability coefficient values calculated from Equation (3) as well as Equations (8) and (9) in which all of the experimental data were taken into account. The results indicated that most of the permeation coefficient values calculated from Equation (3) are underestimated.…”

Section: Number Of Experimental Points In Regression Analysismentioning

confidence: 99%

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Some Critical Remarks about Mathematical Model Used for the Description of Transport Kinetics in Polymer Inclusion Membrane Systems

Szczepański

2020

Membranes

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Two kinetic models which are applied for the description of metal ion transport in polymer inclusion membrane (PIM) systems are presented and compared. The models were fitted to the real experimental data of Zn(II), Cd(II), Cu(II), and Pb(II) simultaneous transport through PIM with di-(2-ethylhexyl)phosphoric acid (D2EHPA) as a carrier, o-nitrophenyl octyl ether (NPOE) as a plasticizer, and cellulose triacetate (CTA) as a polymer matrix. The selected membrane was composed of 43 wt. % D2EHPA, 19 wt. % NPOE, and 38 wt. % CTA. The results indicated that the calculated initial fluxes (from 2 × 10−11 up to 9 × 10−10 mol/cm2s) are similar to the values observed by other authors in systems operating under similar conditions. It was found that one of the most frequently applied models based on an equation similar to the first-order chemical reaction equation leads to abnormal distribution of residuals. It was also found that application of this model causes some problems with curve fitting and leads to the underestimation of permeability coefficients and initial maximum fluxes. Therefore, a new model has been proposed to describe the transport kinetics in PIM systems. This new model, based on an equation similar to the first-order chemical reaction equation with equilibrium, was successfully applied. The fit of this model to the experimental data is much better and makes it possible to determine more precisely the initial maximum flux as the parameter describing the transport efficiency.

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“…The PIMs applied in these studies are relatively stable and provide the potential for a safe method for the removal of phenol from dilute aqueous solutions. The polymer inclusion membrane containing polyvinyl chloride (PVC) as the polymer matrix and N, N-di(1-methylheptyl) acetamide (N503) as a specific carrier was prepared by solvent evaporation and investigated in the facilitated transport of phenol from dilute aqueous solutions (Meng et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Removal of phenol from aqueous solution using polymer inclusion membrane based on mixture of CTA and CA

et al. 2018

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Nowadays, there are increasingly stringent regulations requiring more and more treatment of industrial effluents to generate product waters which could be easily reused or disposed of to the environment without any harmful effects. In the present work, the removal of phenol from aqueous solution across polymer inclusion membrane (PIM), based on mixture of cellulose triacetate and cellulose acetate as support (75/25%), calix[4]resorcinarene derivative as a carrier and 2-nitrophenyl octyl ether (2-NPOE) as plasticizer was investigated. The experimental part of this investigation involved the influence of carrier nature, plasticizer concentration, pH phases, and phenol initial concentration on the removal efficiency of phenol from synthetic wastewater. A PIM containing 0.1 g (of mixture polymer), (0.15 g/g mixture of polymer) of carrier and (0.03 ml/g mixture of polymer) of 2-NPOE provided the highest percentage of phenol removal efficiency over a 6-day transport; the removal was found to be about 95%, indeed the removal was found to be highly dependent of pH phases. The feed solution in these transport experiments was at pH 2, while the stripping solution contained 0.20 M NaOH. This study claims that the PIM with a mixture of cellulose derivatives can be used effectively to remove phenols from wastewaters.

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Transport of phenol through polymer inclusion membrane with N,N-di(1-methylheptyl) acetamide as carriers from aqueous solution

Cited by 40 publications

References 24 publications

The comprehensive investigation of the room temperature ionic liquid additives in PVC based polymer inclusion membrane for Cr(VI) transport

The comprehensive investigation of the room temperature ionic liquid additives in PVC based polymer inclusion membrane for Cr(VI) transport

Some Critical Remarks about Mathematical Model Used for the Description of Transport Kinetics in Polymer Inclusion Membrane Systems

Removal of phenol from aqueous solution using polymer inclusion membrane based on mixture of CTA and CA

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