Studies on rhodamine B dye transport through a supported liquid membrane from basic aqueous solutions using phenol as a membrane phase

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 78799-78806 ◽  
Author(s):  
S. Elumalai ◽  
G. Muthuraman
Keyword(s):  
Aqueous Solutions ◽  
Rhodamine B ◽  
Liquid Membrane ◽  
Supported Liquid Membrane ◽  
Membrane Phase ◽  
Experimental Conditions ◽  
Dye Transport ◽  
Rhodamine B Dye

The aim of this work is to investigate the transport of rhodamine B across a supported liquid membrane under various experimental conditions.

scholarly journals Pertraction of Co(II) through Novel Ultrasound Prepared Supported Liquid Membranes Containing D2EHPA. Optimization and Transport Parameters

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 436
Author(s):  
Gerardo León ◽  
Asunción María Hidalgo ◽  
Beatriz Miguel ◽  
María Amelia Guzmán
Keyword(s):  
Boundary Layer ◽  
Sulfuric Acid ◽  
Carrier Concentration ◽  
Liquid Membrane ◽  
Supported Liquid Membrane ◽  
Liquid Membranes ◽  
Membrane Phase ◽  
Experimental Conditions ◽  
Supported Liquid Membranes ◽  
Aqueous Feed

Pertraction of Co(II) through novel supported liquid membranes prepared by ultrasound, using bis-2-ethylhexyl phosphoric acid as carrier, sulfuric acid as stripping agent and a counter-transport mechanism, is studied in this paper. Supported liquid membrane characterization through scanning electron microscopy, energy-dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy shows the impregnation of the microporous polymer support by the membrane phase by the action of ultrasound. The effect on the initial flux of Co(II) of different experimental conditions is analyzed to optimize the transport process. At these optimal experimental conditions (feed phase pH 6, 0.5 M sulfuric acid in product phase, carrier concentration 0.65 M in membrane phase and stirring speed of 300 rpm in both phases) supported liquid membrane shows great stability. From the relation between the inverse of Co(II) initial permeability and the inverse of the square of carrier concentration in the membrane phase, in the optimized experimental conditions, the transport resistance due to diffusion through both the aqueous feed boundary layer (3.7576 × 104 s·m−1) and the membrane phase (1.1434 × 1010 s·m−1), the thickness of the aqueous feed boundary layer (4.0206 × 10−6 m) and the diffusion coefficient of the Co(II)-carrier in the bulk membrane (4.0490 × 10−14 m2·s−1), have been determined.

Possibilities of chromium (III) separation from acid solution using the double-carrier supported liquid membrane (DCSLM)

2017 ◽  
Vol 75 (10) ◽  
pp. 2358-2368 ◽  
Author(s):  
Jakub Rajewski ◽  
Paulina Rajewska
Keyword(s):  
Aqueous Solutions ◽  
Liquid Membrane ◽  
Phosphinic Acid ◽  
Membrane System ◽  
Feed Solution ◽  
Supported Liquid Membrane ◽  
Acid Solutions ◽  
Membrane Phase ◽  
High Exhaustion ◽  
Effective Carrier

This paper describes the problem of recovery and reusing chromium from aqueous solutions. The authors studied a novel double-carrier supported liquid membrane system (DCSLM) with di(2-ethylhexyl) phosphoric acid (D2EHPA) and bis(2,4,4-trimethyl) phosphinic acid (Cyanex272) as a carrier of Cr(III) ions as a method to separate chromium (III) from acid solutions. As a result, they confirmed that the presence of two carriers in the DCSLM with the most effective carrier concentration ratios, leads to approximately three times shorter pertraction, compared to a process conducted with the D2EHPA only. It was found that synergistic effect is independent of the initial concentration of chromium in the feed solution. Higher initial concentrations of Cr(III) ≥ 0.01 mol dm−3 cause high ‘exhaustion’ of active carrier molecules at the interface. Moreover, the authors observed the increase in viscosity in the membrane phase and process inhibition. It was found that efficiency of separation of chromium ions from aqueous solutions using a liquid membrane depends on the transport rate for these ions in the membrane (ions pertraction). Therefore, it was concluded that the pertraction stage of the Cr(III) ions limits the efficiency of the whole separation process.

Dysprosium pertraction through facilitated supported liquid membrane using D2EHPA as carrier

2015 ◽  
Vol 69 (2) ◽  
Author(s):  
Parisa Zaheri ◽  
Hossein Abolghasemi ◽  
Toraj Mohammadi ◽  
Mohammad Ghannadi Maraghe
Keyword(s):  
Taguchi Method ◽  
Phosphoric Acid ◽  
Liquid Membrane ◽  
Solution Concentration ◽  
Supported Liquid Membrane ◽  
Membrane Phase ◽  
Feed Concentration ◽  
Experimental Conditions ◽  
Hno3 Solution ◽  
Feed Phase

AbstractThe pertraction of dysprosium (Dy) through a supported liquid membrane (SLM) system consisting of PTFE (polytetrafluoroethylene) support, D2EHPA (di-2-ethylhexyl phosphoric acid) dissolved in kerosene as membrane solution, and HNO3 solution as stripping solution, was studied. The experiments were designed by the Taguchi method in order to investigate the effects of initial Dy concentration, feed phase pH, different stripping solution concentration, and D2EHPA concentration in the membrane phase on Dy pertraction. Optimal experimental conditions for Dy pertraction were obtained using an analysis of variance (ANOVA) (feed concentration: 130 mg L

scholarly journals PENAMBAHAN ASAM OLEAT TERHADAP Sistem transpor Cu(II) dengan zat pembawa oksin melalui teknik membran cair fasa ruah

2015 ◽  
Vol 2 (1) ◽  
pp. 45
Author(s):  
Olly Norita Tetra ◽  
Zaharasmi ◽  
Refinel
Keyword(s):  
Aqueous Solutions ◽  
Liquid Membrane ◽  
Bulk Liquid ◽  
Optimum Conditions ◽  
Membrane Phase ◽  
Bulk Liquid Membrane ◽  
Phase 0 ◽  
Interface System ◽  
Source Phase ◽  
Feed Phase

 ABSTRACT The removal of Cu(II) from aqueous solutions had been employed throught bulk liquid membrane techniques with arrange the optimization conditions of transport Cu(II) interface system. The optimum conditions of transport were found to be 3.1510-4 M of Cu(II) at pH 3  in the source phase,  17.510-4 M oxine dissolved into chloroform as membrane phase, 0,15 M H2SO4 as acceptor in  receiving phase, stirring rate was 340 rpm and  it was found that the transport of Cu(II) to receiving phase reached 97.41% during 6 hours. The effect of addition  oleat acid 1.57  10-3 M as surfactant  in membrane phase resulted a rapidly time of  transport Cu(II) to be 3 hours, wherein Cu(II) transported  into  the receive phase reached 97.83%  and remained  in feed phase 0%. Keywords: bulk liquid membrane, oxine, oleat acid, Cu(II) )transport

scholarly journals Extraction of lutetium(III) from aqueous solutions by employing a single fibre-supported liquid membrane

2010 ◽  
Vol 33 (13) ◽  
pp. 2002-2009 ◽  
Author(s):  
Tatjana M. Trtić-Petrović ◽  
Ksenija R. Kumrić ◽  
Jelena S. Đorđević ◽  
Goran T. Vladisavljević
Keyword(s):  
Aqueous Solutions ◽  
Liquid Membrane ◽  
Single Fibre ◽  
Supported Liquid Membrane

Pertraction of methylene blue using a mixture of D2EHPA/M2EHPA and sesame oil as a liquid membrane

2013 ◽  
Vol 67 (7) ◽  
Author(s):  
Pezhman Kazemi ◽  
Mohammad Peydayesh ◽  
Alireza Bandegi ◽  
Toraj Mohammadi ◽  
Omid Bakhtiari
Keyword(s):  
Methylene Blue ◽  
Phosphoric Acid ◽  
Liquid Membrane ◽  
Membrane Surface ◽  
Sesame Oil ◽  
Acetic Acid Concentration ◽  
Membrane Phase ◽  
Experimental Conditions ◽  
Feed Phase ◽  
Kinetics Of

AbstractAn experimental study on the pertraction of methylene blue (MB) through a supported liquid membrane (SLM) using a mixture of mono-(2-etylhexyl) ester of phosphoric acid (M2EHPA) and bis-(2-etylhexyl) ester of phosphoric acid (D2EHPA) and sesame oil as the liquid membrane (LM) was performed. Parameters affecting the pertraction of MB such as initial MB concentration, carrier concentration, feed phase pH, and stripping phase concentration were analyzed. Optimal experimental conditions for MB pertraction (permeability of 5.63 × 10−6) were obtained after a 7 h separation with the MB concentration in the feed phase of 80 mg L−1, D2EHPA/M2EHPA concentration in membrane phase of 40 vol. %, feed pH of 6, and acetic acid concentration in the stripping phase of 0.4 mol L−1. Kinetics of transport and stability of the SLM system were also studied and the mass transfer coefficient for this system was evaluated. Scanning electron microscopy (SEM) was used to morphologically characterize the membrane surface.

STUDIES OF SOLVENT EXTRACTION AND SUPPORTED LIQUID MEMBRANE WITH REACTIVE DYES FROM AQUEOUS SOLUTIONS USING ALIQUOT 336 AS CARRIER

2015 ◽  
Vol 1 (01) ◽  
pp. 54-60
Author(s):  
G Muthuraman
Keyword(s):  
Solvent Extraction ◽  
Liquid Membrane ◽  
Reactive Dyes ◽  
Extraction Process ◽  
Liquid Extraction ◽  
Supported Liquid Membrane ◽  
Liquid Liquid Extraction ◽  
Dye Transport ◽  
Stage Process ◽  
The Stability

The liquid-liquid extraction (LLE) and supported liquid membrane (SLM) studies of reactive dyes namely Gold Yellow (GYHE-R) and Reactive Green HE 4BD (RGHE-4BD) from aqueous solution using Aliquot 336 as the carrier has been investigated. Polytetrafluoroethylene (PTFE) membrane with 0.5 μm pore size has been used after impregnated with Aliquot 336 in dichloromethane. In liquid liquid extraction the following parameters had been optimized; pH of feed, diluent, carrier , strip and dye concentration and the same parameters have been applied to supported liquid membrane (SLM) study to transport dye from aqueous solution.The main advantages SLM study is; the extraction and stripping as single stage process and low consumption of carrier in the membrane phase compared to the solvent extraction process. The other parameters such as transport time, stirring speed and mechanism of dye transport has also studied by SLM. The percentage of transport of dye and flux rate increases with increasing time. The stability of membrane is satisfactory over 5 days.

Statistical optimization for adsorption of Rhodamine B dye from aqueous solutions

2019 ◽  
Vol 281 ◽  
pp. 48-58 ◽  
Author(s):  
Adeleke Abdulrahman Oyekanmi ◽  
Akil Ahmad ◽  
Kaizar Hossain ◽  
Mohd Rafatullah
Keyword(s):  
Aqueous Solutions ◽  
Rhodamine B ◽  
Statistical Optimization ◽  
Rhodamine B Dye

Removal of Rhodamine B dye from aqueous solutions using photo-Fenton processes and novel Ni-Cu@MWCNTs photocatalyst

2020 ◽  
Vol 312 ◽  
pp. 113399 ◽  
Author(s):  
Muhammad Tariq ◽  
Mamriz Muhammad ◽  
Jehangeer Khan ◽  
Abdul Raziq ◽  
Mohammad Kashif Uddin ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Rhodamine B ◽  
Rhodamine B Dye
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