Influence of ion interaction on lead removal by a polyamide nanofiltration membrane

Mehdipour, Saber; Vatanpour, Vahid; Kariminia, Hamid‐Reza

doi:10.1016/j.desal.2015.01.030

Cited by 139 publications

(57 citation statements)

References 45 publications

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“…Among these pollutants are heavy metals which can be toxic and / or carcinogenic and which are harmful to humans and other living species (Renge et al, 2012). The heavy metals of most concern from various industries include lead (Pb), zinc (Zn), copper (Cu), arsenic (As), cadmium (Cd), chromium (Cr), nickel (Ni) and mercury (Hg) (Mehdipour et al, 2015). They originate from sources such as metal complex dyes, pesticides, fertilizers, fixing agents (which are added to dyes to improve dye adsorption onto the fibers), mordents, pigments and bleaching agents (Rao et al, 2010).…”

mentioning

confidence: 99%

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Bahobil¹,

Bayoumi²,

Atta³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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mentioning

confidence: 99%

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Bahobil¹,

Bayoumi²,

Atta³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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“…As shown, the obtained rejection showed that the coating layer was not induced any defect in the NF PA layer. The NF membrane rejection was controlled by the pore size and surface charge . The coating of the PEGDA layer probably reduced the pore size and increased the selective layer thickness.…”

Section: Resultsmentioning

confidence: 99%

“…The NF membrane rejection was controlled by the pore size and surface charge. 40 The coating of the PEGDA layer probably reduced the pore size and increased the selective layer thickness. However, this change was not significant, and it did not induce membrane rejection.…”

Section: Effect Of Sio 2 Nanoparticles In Pegdamentioning

confidence: 99%

Synergistic effect of silica nanoparticles in the matrix of a poly(ethylene glycol) diacrylate coating layer for the surface modification of polyamide nanofiltration membranes

Vatanpour

Kavian

2016

J of Applied Polymer Sci

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In this study, a commercial polyamide nanofiltration membrane was modified by a combination of poly(ethylene glycol) diacrylate (PEGDA) in situ polymerization and silica (SiO2) nanoparticles. The PEGDA layer was polymerized on the surface of the membranes alone or mixed with SiO2 nanoparticle. The surface modification influence on the water flux, salt rejection, and antifouling behavior was investigated. The effects of the nanoparticles and PEGDAylation on the membrane properties were characterized by Fourier transform infrared spectroscopy, contact angle measurement, and scanning electron microscopy analyses. The membranes that were in contact with 30 wt % PEGDA and then treated with ultraviolet light for 5 min had a better water flux than the unmodified membrane. The fouling resistance of the membranes to a foulant solution containing bovine serum albumin, humic acid, and sodium sulfate were studied, and the results show that the membrane with 30 wt % PEGDA had better antifouling properties. After the weight percentage of PEGDA for the prepolymerization solution was optimized (30 wt % was the best), the SiO2 nanoparticle concentration in the prepolymerization matrix was optimized. The presence of SiO2 nanoparticles in the PEGDA layer increased the membrane flux. The maximum water flux and good antifouling properties were obtained for 0.5 wt % SiO2 nanoparticles in a 30 wt % PEGDA layer. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43793.

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“…To date, researchers have been exploring the most effective and economic methods to deal with heavy metals [4][5][6] in wastewater. These methods such as ion-exchange [7], precipitation [8], adsorption [9][10][11][12][13][14][15][16], membrane processes [17], and electro-dialysis [18] have been employed. However, not all of them are proper and ideal ways for the practical application.…”

Section: Introductionmentioning

confidence: 99%

Efficient Pb²⁺ adsorption of biomorphic porous ZnO derived from legume straw

Qiao

Wang

et al. 2019

Env Prog and Sustain Energy

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Using legume straw as template, biomorphic porous ZnO (named ZnO‐B) was synthesized by impregnation and calcination methods. Different characterizations were used to analyze the as‐prepared samples, such as Thermal Gravimetric and Differential Thermal (TG‐DTA), powder X‐ray Diffraction (XRD), Fourier Transform Infrared Spectrometer (FTIR), Scanning Electron Microscope (SEM), Energy dispersive X‐ray spectroscopy (EDX), and Transmission Electronic Microscope (TEM) methods. The adsorption properties of as‐synthesized samples for Pb2+ were studied. As a result, a baculiform structure with porous surface is formed by well‐crystallized ZnO grain self‐assembly on legume straw. The Brunauer–Emmett–Teller (BET) specific surface areas of ZnO‐B is larger than that of ZnO synthesized without template (expressed as ZnO‐A). The zeta potential isoelectric point of ZnO‐B is pHpzc = 5.31. The ZnO‐B showed the most outstanding performance adsorption properties for Pb2+ than ZnO‐A and ZnO‐C (commercial ZnO), removal efficiency was >97.65% and adsorption capacity was 78.73 mg/g. The adsorption equilibrium can be achieved within 20 min. Decrease of temperature would benefit the adsorption. The adsorption process followed the Pseudo‐second model, and the adsorption isotherm model accorded with the Freundlich isothermal model. The E values in Dubinin–Radushkevich (D–R) isotherm model indicated that the adsorption is chemisorption. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

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Influence of ion interaction on lead removal by a polyamide nanofiltration membrane

Cited by 139 publications

References 45 publications

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Synergistic effect of silica nanoparticles in the matrix of a poly(ethylene glycol) diacrylate coating layer for the surface modification of polyamide nanofiltration membranes

Efficient Pb²⁺ adsorption of biomorphic porous ZnO derived from legume straw

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Influence of ion interaction on lead removal by a polyamide nanofiltration membrane

Cited by 139 publications

References 45 publications

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

Synergistic effect of silica nanoparticles in the matrix of a poly(ethylene glycol) diacrylate coating layer for the surface modification of polyamide nanofiltration membranes

Efficient Pb2+ adsorption of biomorphic porous ZnO derived from legume straw

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Product

Resources

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Efficient Pb²⁺ adsorption of biomorphic porous ZnO derived from legume straw