Thin film composite membranes on ceramic for pervaporation dehydration of isopropanol

Shi, Gui Min; Chung, Tai‐Shung

doi:10.1016/j.memsci.2013.07.049

Cited by 64 publications

(27 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of aluminum acetylacetonate, ordered nanocrystals are formed, which cover the entire substrate surface. These morphological differences are attributed to the different activity of the two aluminum sources [29,43]. Since aluminum nitrate has a larger solubility in the reaction solvent of water, more free Al ions are available in the solution.…”

Section: Growth Of Mof On Alumina Membranesmentioning

confidence: 99%

“…Once hydrophobic membranes with an ultrathin top MOF layer are obtained, the resultant membranes may possess the intrinsic advantages of the alumina support, such as high temperature and pressure resistance, high water permeability [29] and a hydrophobic surface formed by MOF functionalization. Thus, thoroughly investigations are carried out in this work to evaluate if these membranes are suitable for seawater desalination by means of vacuum membrane distillation (VMD) [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Metal–Organic Framework-Functionalized Alumina Membranes for Vacuum Membrane Distillation

Zuo

Chung

2016

Water

Self Cite

View full text Add to dashboard Cite

Nature-mimetic hydrophobic membranes with high wetting resistance have been designed for seawater desalination via vacuum membrane distillation (VMD) in this study. This is achieved through molecular engineering of metal-organic framework (MOF)-functionalized alumina surfaces. A two-step synthetic strategy was invented to design the hydrophobic membranes: (1) to intergrow MOF crystals on the alumina tube substrate and (2) to introduce perfluoro molecules onto the MOF functionalized membrane surface. With the first step, the surface morphology, especially the hierarchical roughness, can be controlled by tuning the MOF crystal structure. After the second step, the perfluoro molecules function as an ultrathin layer of hydrophobic floss, which lowers the surface energy. Therefore, the resultant membranes do not only possess the intrinsic advantages of alumina supports such as high stability and high water permeability, but also have a hydrophobic surface formed by MOF functionalization. The membrane prepared under an optimum condition achieved a good VMD flux of 32.3 L/m 2 -h at 60 • C. This study may open up a totally new approach for design of next-generation high performance membrane distillation membranes for seawater desalination.

show abstract

Section: Growth Of Mof On Alumina Membranesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metal–Organic Framework-Functionalized Alumina Membranes for Vacuum Membrane Distillation

Zuo

Chung

2016

Water

Self Cite

View full text Add to dashboard Cite

show abstract

“…Interfacial polymerizations with and without TEA additive (i.e., a reaction accelerator) and surfactant (i.e., a wetting agent) have been reported for pervaporation dehydration of alcohols [25,26]. Accordingly, three different amine solutions were conducted on SbHF substrates to compare their effects on the polyamide selective layer for pervaporation dehydration of IPA.…”

Section: Interfacial Polymerization Conditionsmentioning

confidence: 99%

“…Compared to the TFC hollow fiber, it has about fourfold separation factor without significantly compromising the flux. This is likely due to the fact that the HPEI coated substrate has a hydrophilic smooth surface with smaller pores [24,25]. As a consequence, not only does the modified substrate facilitate the absorbance of MPD for interfacial polymerization but also promote the formation of a less defective polyamide layer.…”

Section: Effect Of Hpei or Pdms Coatingmentioning

confidence: 99%

“…Polymeric pervaporation HF membranes including single-layer asymmetric HFs and dual-layer composite HFs are usually fabricated by means of spinning via a non-solvent induced phase inversion process [13][14][15][16][17][18][19][20][21]. Since heat treatment, silicone coating and chemical crosslinking are often needed to improve the separation efficiency which incur extra costs and the dual-layer spinning technique is complicated, the thin-film composite hollow fiber (TFC HF) membrane fabricated via interfacial polymerization has drawn attention in recent years for pervaporation due to its excellent separation performance and ease of fabrication [22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thin-film composite tri-bore hollow fiber (TFC TbHF) membranes for isopropanol dehydration by pervaporation

Hua

Ong

Wang

et al. 2014

Journal of Membrane Science

Self Cite

View full text Add to dashboard Cite

Pervaporation

Pangarkar

Ray²

2020

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

Pervaporation is a process that employs dense membrane to separates liquid mixtures. Various types of membranes: polymeric, ceramic, or composite can be used. In recent years there has been significant academic as well as industrial advancement in this attractive membrane process. Novel types of membranes have been reported. These include nanocomposite including nano‐sized metal, metal oxide, and graphene/graphene oxide incorporated ceramic/polymer membranes, polyamine‐based thin film composite membranes (earlier commercialized for reverse osmosis membranes), copolymer/interpenetrating network types membranes, template type membranes, polyelectrolyte complex, gold and silver nanoparticle‐based membranes for plasmon PV, and so on. In the application area, besides the well‐known alcohol dehydration PV has been investigated for recovery of aroma and flavor in the food and beverage industries, desulfurization of gasoline, intensification of chemical reactions, and so on. Further, PV is being extensively used as a low‐temperature environment friendly “green technology” for safe removal of volatile organic compounds using highly selective organophilic membranes. The advent of metal–organic framework membranes has resulted in significantly higher selectivities as compared to conventional membranes. PV is also being investigated for desalination with hydrophilic membranes. This article provides a state of the art discussion on PV that includes basic principles, types of membranes/modules, and important industrial applications.

show abstract

Thin film composite membranes on ceramic for pervaporation dehydration of isopropanol

Cited by 64 publications

References 47 publications

Metal–Organic Framework-Functionalized Alumina Membranes for Vacuum Membrane Distillation

Metal–Organic Framework-Functionalized Alumina Membranes for Vacuum Membrane Distillation

Thin-film composite tri-bore hollow fiber (TFC TbHF) membranes for isopropanol dehydration by pervaporation

Pervaporation

Contact Info

Product

Resources

About