Supported MFI zeolite membranes by cross flow filtration for water treatment

Garofalo, A.; Donato, Laura; Drioli, Enrico; Criscuoli, A.; Carnevale, M.C.; Alharbi, Omar; Aljlil, Saad A.; Algieri, Catia

doi:10.1016/j.seppur.2014.09.028

Cited by 38 publications

(21 citation statements)

References 53 publications

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“…The maximum CEC of NaP zeolite ensures the presence of maximum Al +3 site available for Al‐arsenite formation. Recently, zeolite membranes are used for the purpose of water purification for various environmental applications . Pure alumino‐silicate zeolites are hydrophilic in nature and hence the strong hydrophilicity as well as high CEC (available Al +3 site) makes the process of As(III) removal from water highly suitable.…”

Section: Introductionmentioning

confidence: 99%

Performance of zeolite powder and tubular membrane having different Si/Al ratio for removing As(III) in aqueous phase

Roy

Pal

Sensharma

et al. 2017

Int J Applied Ceramic Tech

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Three different types of zeolite having pore sizes in the range 0.26‐0.74 nm, (NaP, NaA, and NaY) powders and membranes are synthesized with different Si:Al ratio on low cost clay alumina tubular support. The results of the permeation and separation studies showed that the NaP zeolite powder and membrane removes maximum As(III) from the water solution (more than 80%) compared to other zeolites. The removal of As(III) to achieve drinking water standard, by zeolite membrane, in a single step process does not seem to have been reported before the present investigation. These are the novelty achieved.

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Section: Introductionmentioning

confidence: 99%

Performance of zeolite powder and tubular membrane having different Si/Al ratio for removing As(III) in aqueous phase

Roy

Pal

Sensharma

et al. 2017

Int J Applied Ceramic Tech

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“…As silicalite-1 is an all-silica zeolite, the Al must come from the α-Al 2 O 3 support. Considering that silicalite-1 membrane is a widely used pure-silica zeolite membrane for organics removal from water [51], metallic elements leaching from a support can lower the hydrophobicity of the membrane in a devastating way [51,52] unless an additional intermediate protective layer is applied [53,54]. In this aspect, using HNM supports shows superiority to the commonly used α-Al 2 O 3 supports.…”

Section: Resultsmentioning

confidence: 99%

Halloysite nanotube-based electrospun ceramic nanofibre mat: a novel support for zeolite membranes

et al. 2016

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Some key parameters of supports such as porosity, pore shape and size are of great importance for fabrication and performance of zeolite membranes. In this study, we fabricated millimetre-thick, self-standing electrospun ceramic nanofibre mats and employed them as a novel support for zeolite membranes. The nanofibre mats were prepared by electrospinning a halloysite nanotubes/polyvinyl pyrrolidone composite followed by a programmed sintering process. The interwoven nanofibre mats possess up to 80% porosity, narrow pore size distribution, low pore tortuosity and highly interconnected pore structure. Compared with the commercial α-Al2O3 supports prepared by powder compaction and sintering, the halloysite nanotube-based mats (HNMs) show higher flux, better adsorption of zeolite seeds, adhesion of zeolite membranes and lower Al leaching. Four types of zeolite membranes supported on HNMs have been successfully synthesized with either in situ crystallization or a secondary growth method, demonstrating good universality of HNMs for supporting zeolite membranes.

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“…Recent publications have tended to focus on producing novel ceramic materials specifically to MD, rather than on commercial ceramic membranes. Some examples include kaolin [Al 2 Si 2 O 5 (OH) 4 ], silicon nitride with SiNCO nanoparticles (NPs), bi‐layered yttria‐stabilized zirconia (YSZ), β‐Sialon coated with polydimethylsiloxane (PDMS), alumina and clay (kaolin), alumina support and zeolite mordenite framework inverted (MFI), mud of hydrocyclone laundries of phosphates/zirconia, Tunisian clay, green silica‐based ceramic membrane derived from rice husk ash waste, and silicon dioxide‐coated silicon oxynitride . Each publication reported in detail the fabrication of the membrane.…”

Section: Overview Of Ceramic Membranes Applied To MDmentioning

confidence: 99%

“…The creation of a rough surface, that is, generation of heterogeneity on the surface, is possible to form highly hydrophobic surfaces due to the generation of pillars and the presence of air pockets on the surface . Two studies reported the use of a framework of MFI zeolites as hydrophobic surface modification . One recent study reported the creation of roughness by depositing zinc oxide NPs on omniphobic alumina membranes, which enhanced wetting resistance along with grafting .…”

Section: Overview Of Ceramic Membranes Applied To MDmentioning

confidence: 99%

“…Hubadillah et al and Kujawa et al proved that ceramic‐based MD can be applied to high concentrated solutions without affecting its performance because of lower fouling effect . On the other hand, many authors observed that when increasing the solute concentration at the feed side results in a decrease in permeate flux . This phenomenon is explained by Raoult's law, which states that higher solute concentrations lead to decrease in water vapor pressure.…”

Section: Overview Of Ceramic Membranes Applied To MDmentioning

confidence: 99%

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Ceramic membranes applied to membrane distillation: A comprehensive review

Ramlow

Ferreira

Marangoni

et al. 2019

Int J Applied Ceramic Tech

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Membrane distillation (MD) has been increasingly studied in the past decade for its potential as a separation process of nonvolatile components. The present study demonstrates a comprehensive overview of the current progress and challenges in the application of ceramic membranes to MD based on the available state of the art.There are already published review papers about MD, but the present study focuses on ceramic membranes, which are still the few used in MD when compared to polymeric membranes. Significant issues such as membrane material, module, characteristics, and hydrophobic modification are discussed. The main operating conditions and their effects on the separation process are given. Current applications of ceramic membranes in MD are also presented. Likewise, challenges and future perspectives associated with MD performance using ceramic membranes are highlighted.A review focused on ceramic membranes applied specifically to MD will contribute for future research in order that this process achieves successful implementation in industry. K E Y W O R D Sapplications, grafting, permeability, properties, surface modification 2162 | RAMLOW et AL.

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Supported MFI zeolite membranes by cross flow filtration for water treatment

Cited by 38 publications

References 53 publications

Performance of zeolite powder and tubular membrane having different Si/Al ratio for removing As(III) in aqueous phase

Performance of zeolite powder and tubular membrane having different Si/Al ratio for removing As(III) in aqueous phase

Halloysite nanotube-based electrospun ceramic nanofibre mat: a novel support for zeolite membranes

Ceramic membranes applied to membrane distillation: A comprehensive review

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