Interlayer-free P123 carbonised template silica membranes for desalination with reduced salt concentration polarisation

Elma, Muthia; Wang, David; Yacou, Christelle; Costa, João C. Diniz da

doi:10.1016/j.memsci.2014.10.026

Cited by 95 publications

(73 citation statements)

References 31 publications

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“…Applications such as alumina membranes for juice processing [1], protein separation [2], and oil/water emulsion separation [3], titania membranes for wastewater processing [4], zirconia membranes for processing vegetable oil [5] and food [6], zeolites for the dehydration of organic solvents [7], cobalt silica membranes for ammonia separation from waste waters [8] and carbonized templated silica membranes for desalination [9] are some of many examples. Inorganic membranes have a very wide range of pore sizes from microfiltration to ultrafiltration to nanofiltration and even down to the sub-nanometer range depending on the materials of choice and synthesis conditions.…”

Section: Introductionmentioning

confidence: 99%

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Jalil

Wang²,

Yacou

et al. 2017

Journal of Membrane Science

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This work shows the preparation and separation performance assessment of carbon membranes derived from phenolic resin by a vacuum-assisted method and carbonisation in an inert atmosphere.The vacuum time played an important role in tailoring the structure of the membranes. For instance, pore volumes and surface areas increased from 0.81 and 834 to 2.2 cm 3 g -1 and 1910 m 2 g -1 , respectively, as the vacuum time exposure increased from 0 to 1200 s. The significant structural changes correlated very well with water permeation, as fluxes increased by 91% as the vacuum time increased from 0 to 1200s, reaching up to 169 kg m -2 h -1 at 5 bar. Molecular weight cut-off tests showed no rejection for the smaller glucose and sucrose molecules, though this increased to ~ 80% and full rejection for 36kD and 400kD polyvinyl pyrrolidine. Interestingly, FTIR spectra showed that the peaks of C-H stretching vibration (2800-3200 cm -1 ) and C-O stretching (1030 cm -1 ) became more pronounced as a function of increasing vacuum time, strongly suggesting that the use of vacuum further assisted in the polycondensation of phenolic oligomers. Based on these outcomes, a cluster to cluster model is proposed, whereby vacuum application promoted crosslinking reactions of the phenolic resin, creating microporous regions within the clusters, and mesoporous regions between the clusters. 2 Graphical AbstractKeywords: carbon membranes; vacuum-assisted method; water; molecular weight cut-off.

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Section: Introductionmentioning

confidence: 99%

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Jalil

Wang²,

Yacou

et al. 2017

Journal of Membrane Science

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“…Recently, Chua and co-workers reported the preparation of ordered mesoporous silica membranes delivering reasonable water fluxes and high salt rejection [12]. A more recent work from Diniz da Costa's group [14] has shown that interlayer free carbonised template silica membranes formed mesoporous carbon moieties within the silica matrix, thus conferring improved water fluxes of up to [17,18] and ultrafiltration [19] processes only.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous TiO 2 based membranes for water desalination and brine processing

Yacou¹,

Smart²,

Costa³

2015

Separation and Purification Technology

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“…Carbonized template silica membranes were manufactured and examined for water desalination [98]. The membranes were synthesized by a two-step base catalyzed sol-gel process using tetraethylorthosilicate (TEOS) as the silica precursor and triblock copolymer Pluronics P123 as the templating agent.…”

Section: Carbon Molecular Sieve Membrane For Water Separationmentioning

confidence: 99%

Recent Advances on Carbon Molecular Sieve Membranes (CMSMs) and Reactors

Tanco

Tanaka

2016

Processes

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Carbon molecular sieve membranes (CMSMs) are an important alternative for gas separation because of their ease of manufacture, high selectivity due to molecular sieve separation, and high permeance. The integration of separation by membranes and reaction in only one unit lead to a high degree of process integration/intensification, with associated benefits of increased energy, production efficiencies and reduced reactor or catalyst volume. This review focuses on recent advances in carbon molecular sieve membranes and their applications in membrane reactors.

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Interlayer-free P123 carbonised template silica membranes for desalination with reduced salt concentration polarisation

Cited by 95 publications

References 31 publications

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Mesoporous TiO 2 based membranes for water desalination and brine processing

Recent Advances on Carbon Molecular Sieve Membranes (CMSMs) and Reactors

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