Boron removal from geothermal water by nanofiber-based membrane distillation membranes with significantly improved surface hydrophobicity

Ozbey‐Unal, Bahar; Gezmis-Yavuz, Elifnur; Eryıldız, Bahriye; Köseoğlu-İmer, Derya Y.; Keskinler, Bülent; Koyuncu, İsmail

doi:10.1016/j.jece.2020.104113

Cited by 42 publications

(22 citation statements)

References 50 publications

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“…In recent years, the superhydrophobic membrane has become a research hotspot in the field of MD, superhydrophobic surface can effectively promote water vapor into membrane pore. [30] Figure 7e shows the CA values of different PVDF ENMs in our study, we can found that the CA values between 125 o and 135 o , similar to the commercial membranes (130 o ). It indicated that PVDF ENMs have a good hydrophobicity and can be applied to MD.…”

Section: Characteristic Of Enmssupporting

confidence: 72%

“…The result showed that the optimized PVDF membrane improve the permeate flux to 27.7 kg m −2 h −1 . [30] Koh and Li has successfully fabricated omniphobic polyamide 6 nanofiber membrane, which can maintain the initial water flux for up to 200 h and ethylene glycol rejection about 100% at 60°C. [31] ZnO nanowires@PVDF nanofiber membrane with superhydrophobicity for enhanced anti-scaling and anti-wetting properties was fabricated by Pan et.…”

Section: Introductionmentioning

confidence: 99%

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ThePreparation of Electrospun PVDF/TBAC Multimorphology Nanofiber Membrane and Its Application in Direct Contact Membrane Distillation

Liu

Zhou

Shen

et al. 2021

Macromol. Rapid Commun.

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Microporous membrane with a hydrophobic surface, high porosity, and narrow pore size distribution is the ideal membrane distillation (MD) membrane. The electrospun membranes for MD are a new type and effective way to seawater desalination. Herein, a novel polyvinylidene fluoride (PVDF)/tetrabutylammonium chloride (TBAC) electrospun nanofiber membrane (ENMs) fabricated apply to for direct contact membrane distillation (DCMD). Combine with the spinning condition, the characteristic and content of TBAC significant effect on the multimorphology structure of nanofiber. Therefore, the porous structure and morphology of PVDF/TBAC ENMs can be well-designed by optimizing relative humidity and TBAC concentration in spinning process, three different structure nanofiber membranes are obtained. Lab-scale setup is used to test membrane separation performance. The result indicates that the ultrafine ENMs with 0.025 mol L −1 TBAC presented a steady water flux of about 20.6 L m −2 h −1 and a high-efficiency salt rejection rate of over 99%. PVDF/TBAC ENMs are expected to provide a solution for development of efficient water treatment membrane.

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Section: Characteristic Of Enmssupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

ThePreparation of Electrospun PVDF/TBAC Multimorphology Nanofiber Membrane and Its Application in Direct Contact Membrane Distillation

Liu

Zhou

Shen

et al. 2021

Macromol. Rapid Commun.

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“…Electrospinning parameters, including polymer solution properties, can be changed and controlled in order to obtain different nanofiber morphologies. Electrospun nanofibers are excellent candidates for use as membranes in water and wastewater treatment, including dye degradation [129][130][131][132], heavy metal ion adsorption [133][134][135], oily water separation [136,137], and microbial disinfection [130,138,139]. There are many types of materials, and these are briefly presented in Figure 3.…”

Section: Methodsmentioning

confidence: 99%

Multifunctional Membranes—A Versatile Approach for Emerging Pollutants Removal

et al. 2022

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This paper presents a comprehensive literature review surveying the most important polymer materials used for electrospinning processes and applied as membranes for the removal of emerging pollutants. Two types of processes integrate these membrane types: separation processes, where electrospun polymers act as a support for thin film composites (TFC), and adsorption as single or coupled processes (photo-catalysis, advanced oxidation, electrochemical), where a functionalization step is essential for the electrospun polymer to improve its properties. Emerging pollutants (EPs) released in the environment can be efficiently removed from water systems using electrospun membranes. The relevant results regarding removal efficiency, adsorption capacity, and the size and porosity of the membranes and fibers used for different EPs are described in detail.

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“…As a result of the excellent abilities that the PAN-ZnO NFM holds, it is fully capable to be used in dye removal from wastewater [144]. Ozbey-Unal, et al [145] synthesized hydrophobic nanofiber membranes to remove salt and boron from geothermal water using air gap membrane distillation (AGMD). The results of the study showed that the permeate flux and the mechanical strength of the membrane were improved.…”

Section: Applications Of Nanofiber Membranes In Water Treatmentmentioning

confidence: 99%

“…The results of the study showed that the permeate flux and the mechanical strength of the membrane were improved. Hence, the membrane was capable of removing salt and boron from geothermal water [145]. Wang, et al [146] synthesized a multifunctional polyvinylidene fluoride-co-hexafluoropropyle (PVDF-HFP)/catecholpolyethyleneimine (CA-PEI)/Ag/3-glycidyloxy propyltrimethoxysilane (KH560) tubular nanofiber membrane (TNM) for oil/water separation and dye degradation.…”

Section: Applications Of Nanofiber Membranes In Water Treatmentmentioning

confidence: 99%

Recent Progress on Nanomaterial-Based Membranes for Water Treatment

et al. 2021

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Nanomaterials have emerged as the new future generation materials for high-performance water treatment membranes with potential for solving the worldwide water pollution issue. The incorporation of nanomaterials in membranes increases water permeability, mechanical strength, separation efficiency, and reduces fouling of the membrane. Thus, the nanomaterials pave a new pathway for ultra-fast and extremely selective water purification membranes. Membrane enhancements after the inclusion of many nanomaterials, including nanoparticles (NPs), two-dimensional (2-D) layer materials, nanofibers, nanosheets, and other nanocomposite structural materials, are discussed in this review. Furthermore, the applications of these membranes with nanomaterials in water treatment applications, that are vast in number, are highlighted. The goal is to demonstrate the significance of nanomaterials in the membrane industry for water treatment applications. It was found that nanomaterials and nanotechnology offer great potential for the advancement of sustainable water and wastewater treatment.

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Boron removal from geothermal water by nanofiber-based membrane distillation membranes with significantly improved surface hydrophobicity

Cited by 42 publications

References 50 publications

ThePreparation of Electrospun PVDF/TBAC Multimorphology Nanofiber Membrane and Its Application in Direct Contact Membrane Distillation

ThePreparation of Electrospun PVDF/TBAC Multimorphology Nanofiber Membrane and Its Application in Direct Contact Membrane Distillation

Multifunctional Membranes—A Versatile Approach for Emerging Pollutants Removal

Recent Progress on Nanomaterial-Based Membranes for Water Treatment

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