Nano-ZnO embedded mixed matrix polyethersulfone (PES) membrane: Influence of nanofiller shape on characterization and fouling resistance

Rajabi, Hamid; Ghaemi, Negin; Madaeni, S.S.; Daraei, Parisa; Astinchap, Bandar; Zinadini, Sirus; Razavizadeh, Sayed Hossein

doi:10.1016/j.apsusc.2015.04.214

Cited by 154 publications

(65 citation statements)

References 59 publications

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“…Furthermore, in Figure (b) of ZrO 2 ePES MMMs, two new peaks at diffraction angles of 28.1° and 31.42° could be clearly seen and these correspond to characteristic monoclinic ZrO 2 . In the case of ZnOePES MMMs, four specific ZnO peaks were noticed at diffraction angles of 31.68°, 34.38°, 36.18° and 56.54° . The above membrane characterization studies reveal that the prepared nano metal oxides are dispersed perfectly in the PES matrix.…”

Section: Resultsmentioning

confidence: 71%

Concentration of whey protein from cheese whey effluent using ultrafiltration by combination of hydrophilic metal oxides and hydrophobic polymer

Yogarathinam

Arthanareeswaran

Ismail

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND In this study, hydrophilic metal oxides such as TiO2, ZrO2 and ZnO were used as modifier for the preparation of polyethersulfone (PES) mixed matrix membranes (MMMs) for the filtration of cheese whey effluent. Nano metal oxide loading concentration was varied from 0.5 to 2.5 wt%. RESULTS Characterization of metal oxide studies show that the particles are hydrophilic and nanoscaled. ZnO nanoparticles are in the form of nanocluster and of size 14.28–20.10 nm. Physio‐chemical characterization of PES MMMs indicated that the nano metal oxides dispersed well in the PES matrix. Contact angle decreased up to 59.88° for 1.5 wt% TiO2 embedded PES (TiO2ePES) MMMs. Also, 1.5 wt% TiO2ePES MMMs gives a higher water permeability of 4.62 × 10–7 m s–1 kPa–1. Among membranes, 1.5 wt% TiO2ePES, 2.0 wt% ZrO2ePES and 1.5 wt% ZnOePES MMMs showed better flux, lower percentage fouling and better rejection for individual whey proteins. CONCLUSION The whey protein from cheese whey effluent was concentrated up to maximum of 43.9 mg L–1 using 2.0 wt% ZrO2ePES MMMs. It was found that 1.5 wt% TiO2ePES MMMs gives a higher average flux of 25.09 L m–2 h–1 and a lower flux reduction percentage of 39%. © 2018 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 71%

Concentration of whey protein from cheese whey effluent using ultrafiltration by combination of hydrophilic metal oxides and hydrophobic polymer

Yogarathinam

Arthanareeswaran

Ismail

et al. 2018

J of Chemical Tech & Biotech

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“…Mansourizadeh et al prepared PES/cellulose acetate (CA) membrane by NIPS to enhance hydrophilicity and membrane structure for oil‐water separation, the results showed that both the water productivity and the structure improved. Rajabi et al embedded two different kinds of nano‐ZnO (nanoparticle and nanorod) in PES membrane matrix to investigate the effects of a nano‐filler shape on the mixed matrix membrane characteristics and the antifouling capability. The resulted membranes showed higher water flux.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of PES/CA microporous membranes via reverse thermally induced phase separation process

Liu

Wei

et al. 2017

Polymer Engineering & Sci

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The blend polyethersulfone (PES)/cellulose acetate (CA) flat‐sheet microporous membranes were prepared by reverse thermally induced phase separation (RTIPS) process. The effects of CA content and coagulation bath temperature on membrane structures and properties were investigated in terms of membrane morphology, water contact angle, permeation performance, and mechanical properties. The cloud point results indicated that the cloud point decreased with the increasing content of CA. When the coagulation bath temperature was lower than the cloud point, the membrane formation process underwent nonsolvent induced phase separation (NIPS) process and dense skin layer and finger‐like structure were formed in membranes. These membranes had lower pure water flux and poor mechanical properties. But when the coagulation bath temperature was higher than the cloud point, the membrane formation process underwent RTIPS process. The porous top surface as well as porous cross‐section of the membranes were formed. Therefore, high pure water flux and good mechanical properties were obtained. The contact angles results indicated that the hydrophilicity of the prepared membranes improved obviously with the addition of CA. When the content of CA was 0.5 wt% and the membrane formation temperature was 323K, the PES/CA microporous membrane which was prepared via the RTIPS process displayed a optimal permeability of the pure water flux of 816 L m−2 h−1 and the BSA rejection rate of 49.5%, which showed an increase of 48.9% and 23.6% than that of pure PES membrane, respectively. Moreover, the mechanical strengths of the membranes obtained by RTIPS process were better than those membranes prepared by NIPS process. POLYM. ENG. SCI., 58:180–191, 2018. © 2017 Society of Plastics Engineers

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“…It was noticeable that upon the addition of the ZnO nanoparticles into the PES, there was a good distribution of ZnO nanoparticles inside the PES matrix but agglomeration occurred when the ZnO loading was increased above 17 wt%. This could be attributed to the viscosity of the polymer solution that intensified with an increase in ZnO loading, thus causing a reduction in the dispersion of the ZnO nanoparticles which in turn led to the development of large, aggregated ZnO particles inside the polymer matrix [23,24]. The EDX spectrums of the PES/ZnO film photocatalysts ( Figure 2b,d,f,h), revealed the presence of immobilized ZnO with increased ZnO loading in the films.…”

Section: Surface Morphological and Structural Analysismentioning

confidence: 99%

“…This could be due to the occurrence of agglomerated and bulky ZnO particles that might have damaged the polymer network structure and by limiting its movements, thus initiating the formation of a film with least porosity. The existence of excess ZnO particles in the matrix could also lead to a decrease in the porosity of the film [24,27]. Figure 4 displays the three dimensional atomic force microscopy (AFM) photographs of the pristine PES and PZ-17 films based on a sample size area of 2 µm × 2 µm.…”

Section: Surface Morphological and Structural Analysismentioning

confidence: 99%

Photoactive Hybrid Film Photocatalyst of Polyethersulfone-ZnO for the Degradation of Methyl Orange Dye: Kinetic Study and Operational Parameters

et al. 2017

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Abstract:A facile and effective technique to immobilize photocatalyst nanoparticles by incorporating zinc oxide (ZnO) into polyethersulfone polymeric films by means of a phase inversion technique is reported. The degradation study of methyl orange (MO) dye was performed using a series of ZnO-embedded polymer hybrid systems. The photoactivity of the films increased in parallel with increased ZnO loading up to 17 wt%. The photodegradation process followed a pseudo first-order kinetics with an achievement of almost 100% MO removal in original conditions. The PZ-17 film demonstrated an excellent and comparable degradation performance up to five cycles, signifying the reliability of the film photocatalyst against ultraviolet irradiation and degradation.

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Nano-ZnO embedded mixed matrix polyethersulfone (PES) membrane: Influence of nanofiller shape on characterization and fouling resistance

Cited by 154 publications

References 59 publications

Concentration of whey protein from cheese whey effluent using ultrafiltration by combination of hydrophilic metal oxides and hydrophobic polymer

Concentration of whey protein from cheese whey effluent using ultrafiltration by combination of hydrophilic metal oxides and hydrophobic polymer

Preparation and characterization of PES/CA microporous membranes via reverse thermally induced phase separation process

Photoactive Hybrid Film Photocatalyst of Polyethersulfone-ZnO for the Degradation of Methyl Orange Dye: Kinetic Study and Operational Parameters

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