Fabrication of new composite membrane filled with UiO-66 nanoparticles and its application to nanofiltration

Trinh, Dai Xuan; Tran, Thuy Phuong Nhat

doi:10.1016/j.seppur.2017.01.004

Cited by 39 publications

(24 citation statements)

References 48 publications

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“…Nevertheless, the decrease in rejection across these membranes points toward the concentration polarization phenomenon since increment in CMS loadings more than 1 wt.% caused pore blockage, resulting in accumulation of rejected solute, less permeate flux, and decreased rejection. Such behavior of decreased rejection with higher loadings in the membrane matrix has been previously reported in the literature (Ansari et al, 2015; Trinh et al, 2017). Hosseini et al (2016) stated that 5% decrease in rejection of Na 2 SO 4 occurred as loading of filler was increased from 0.5 to 1 wt.% in PES polymer matrix.…”

Section: Resultssupporting

confidence: 82%

“…However, increased CMS loading resulted in increased viscosity of the solution, which slowed down the solvent–nonsolvent exchange during the phase inversion, hence changing the membrane morphology to compact structure. Several researchers have observed the same results (Ansari, Moghadassi, & Hosseini, 2015; Baghbanzadeh, Rana, Matsuura, & Lan, 2015; Ghaemi et al, 2015; Rajabi et al, 2015; Trinh, Tran, & Taniike, 2017).…”

Section: Resultsmentioning

confidence: 62%

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Synthesis, characterization, and performance analysis of carbon molecular sieve‐embedded polyethersulfone mixed‐matrix membranes for the removal of dissolved ions

Qadir

Nasir

Mukhtar

et al. 2020

Water Environment Research

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The asymmetric polyethersulfone (PES‐15 wt.%) mixed‐matrix membranes were prepared by incorporation of carbon molecular sieve (CMS) with varying concentrations (1, 3, and 5 wt.%). Physicochemical characterization of synthesized membranes was carried out using field emission scanning electron microscope, atomic force microscopy, contact angle, thermogravimetric analysis, zeta potential analyzer, porosity, and mean pore sizes. Performance analysis of synthesized mixed‐matrix membranes was carried out by varying the operating parameters such as pressure (2–10 bar), feed concentration (100–1,000 mg/L), and cations type (Na+, Ca2+, Mg2+, and Sn2+). Effect of operating parameters and CMS concentration was investigated on pure water flux (PWF), permeate flux, and rejection of membranes. It was found that mixed‐matrix membrane containing 15 wt.% PES with 1 wt.% CMS displayed the superior physicochemical characteristics in terms of hydrophilicity (37.9°), surface charge (−13.8 mV), mean pore diameter (6.04 nm), and thermal properties (Tg = 218.5°C), and overall performance. E5C1 membrane showed 1.5 times higher PWF (75.5 L m−2 hr−1) and incremented in rejection for all salts than the nascent membrane. Practitioner points Carbon molecular sieve‐embedded mixed‐matrix membranes were synthesized by phase inversion method. The resultant membranes experienced improved hydrophilicity, roughness, surface charge, porosity, and mean pore diameter with 1 wt.% CMS loading. The pure water flux was improved from 55.77 to 75.05 L m−2 hr−1 when 1 wt.% CMS was added in pure PES. The observed rejection of a mixed‐matrix membrane with 1 wt.% CMS was the maximum for all salts.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 62%

Synthesis, characterization, and performance analysis of carbon molecular sieve‐embedded polyethersulfone mixed‐matrix membranes for the removal of dissolved ions

Qadir

Nasir

Mukhtar

et al. 2020

Water Environment Research

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“…In our recent publication, a novel strategy was proposed to form an MOF-based composite membrane for nanofiltration [27], in which a suspension of UiO-66 nanoparticles as one of the most stable frameworks in water [28,29,30] was deposited onto a regenerated cellulose (RC) support via suction filtration. The nanoparticles were filled in the pore network or loaded on the external surface of the support membrane to form a selective layer.…”

Section: Introductionmentioning

confidence: 99%

Design of a Semi-Continuous Selective Layer Based on Deposition of UiO-66 Nanoparticles for Nanofiltration

et al. 2018

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Deposition of UiO-66 metal–organic framework nanoparticles onto a porous polymer support is a promising approach to designing highly-permeable, size-selective, flexible, and stable membranes for water filtration. In this article, a series of UiO-66 nanoparticles having different particle sizes were synthesized and employed to prepare UiO-66-deposited composite membranes. It was found that the size of the UiO-66 nanoparticles had great influences on the performance of the composite membranes for the filtration of a methylene blue aqueous solution. The deposition of smaller nanoparticles afforded a selective layer having a greater external surface area and narrower interparticle voids. These features made the deposition of smaller nanoparticles more advantageous in terms of the flux and rejection, while the deposition of greater nanoparticles afforded a selective layer more tolerant for fouling. Bimodal composite membranes were prepared by depositing mixed UiO-66 nanoparticles of smaller and bigger sizes. These membranes successfully combined the advantages of nanoparticles of a distinct size.

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“…The level of organic pollutants in the environment has been increasing rapidly due to urbanization and industrialization, therefore posing health risks to all living things. [1][2][3] As the removal of organic pollutants from the environment has become a strenuous task, various conventional methods, such as flocculation, adsorption, biological process, and membrane technology, have been employed. [4][5][6][7][8] Despite the fact that every process has its pros and cons, the membrane separation technique has garnered considerable interest in wastewater purification due to its simple operation process, less energy consumption, cost-effectiveness, and stable product quality.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic removal of organic pollutants and self‐cleaning performance of PES membrane incorporated sulfonated graphene oxide/ZnO nanocomposite

Boopathy

Arthanareeswaran

Ashok

2020

J of Chemical Tech & Biotech

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BACKGROUND: Membrane technology is highly applicable to water purification due to its simple operation process. During the treatment of organic wastewater, the organic compounds are deposited on the membrane surface, which leads to membrane fouling. To alleviate this problem, the membrane separation process could be combined with eco-friendly photocatalytic technology. In this regard, facile synthesized nanomaterials, such as sulfonated graphene oxide (SGO), zinc oxide (ZnO), and SGO/ZnO (SGZ) are incorporated in a polyethersulfone (PES) membrane matrix used for antifouling analysis and degradation of organic pollutants in the presence of UV light irradiation. RESULTS: X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM) analysis shows that ZnO is bound strongly within the SGO-ZnO nanocomposite. The optical property was also altered for hybrid SGO-ZnO nanocomposite as compared to the ZnO photocatalyst. The physicochemical characterization of PES-SGO, PES-ZnO, and PES-SGZ nanocomposite membranes was studied. Hydrophilicity and water flux are improved with the addition of nanomaterials. Among the membranes, PES-SGZ nanocomposite membranes exhibit maximum water flux and lower contact angle value of 152 L m −2 h −1 and 51.9°, respectively. The photocatalytic activity of the membrane was assessed by organic pollutants under the UV light. The PES-SGZ nanocomposite membrane revealed higher photocatalytic efficiency for crystal violet at 92.3% and ciprofloxacin at 95.1%. CONCLUSION: The modified PES membranes enhanced antifouling and hydrophilic properties. Specifically, the PES-SGZ nanocomposite membrane proved to be a superior material for the effective photodegradation of organic pollutants and it achieved a higher water flux. To conclude, the prepared photocatalytic membrane could have vast potential in the treatment of toxic organic industrial effluents.

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Fabrication of new composite membrane filled with UiO-66 nanoparticles and its application to nanofiltration

Cited by 39 publications

References 48 publications

Synthesis, characterization, and performance analysis of carbon molecular sieve‐embedded polyethersulfone mixed‐matrix membranes for the removal of dissolved ions

Synthesis, characterization, and performance analysis of carbon molecular sieve‐embedded polyethersulfone mixed‐matrix membranes for the removal of dissolved ions

Design of a Semi-Continuous Selective Layer Based on Deposition of UiO-66 Nanoparticles for Nanofiltration

Photocatalytic removal of organic pollutants and self‐cleaning performance of PES membrane incorporated sulfonated graphene oxide/ZnO nanocomposite

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