Preparation of modified MFI-type/PDMS composite membranes for the separation of dichlorobenzene isomers<i>via</i>pervaporation

He, Qiuping; Wang, Ying-Ying; Wang, Pengfei; Dou, Xiaoming

doi:10.1039/d2ra01950g

Cited by 3 publications

(1 citation statement)

References 49 publications

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“…1,9 Investigations to facilitate the separation of DCB mixtures using metal organic frameworks (MOFs), membranes, zeolites and liquid and gas chromatography (employing suitable stationary phases) have been reported in detail in the recent literature. [10][11][12][13][14] Unfortunately, these purification and separation procedures consume significant time and energy and are, oftentimes, extremely costly to perform. Therefore, an alternative approach for these separations is particularly appealing.…”

Section: Introductionmentioning

confidence: 99%

Host compounds based on the rigid 9,10-dihydro-9,10-ethanoanthracene framework: selectivity behaviour in mixed isomeric dichlorobenzenes

Barton,

Caira,

Senekal

et al. 2024

CrystEngComm

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The behaviour of host compounds dimethyl trans-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboxylate (H1), trans-α,α,α′,α′-tetraphenyl-9,10-dihydro-9,10-ethanoanthracene-11,12-dimethanol (H2) and trans-α,α,α′,α′-tetra(p-chlorophenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dimethanol (H3), based on the rigid 9,10-dihydro-9,10-ethanoanthracene framework, was investigated in the presence of singular dichlorobenzene (o-DCB, m-DCB and...

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Section: Introductionmentioning

confidence: 99%

Host compounds based on the rigid 9,10-dihydro-9,10-ethanoanthracene framework: selectivity behaviour in mixed isomeric dichlorobenzenes

Barton,

Caira,

Senekal

et al. 2024

CrystEngComm

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Preparation of Covalent Organic Framework/PDMS Mixed Matrix Membranes for Efficient Ethanol Recovery via Pervaporation

Wu,

Tian,

et al. 2024

Ind. Eng. Chem. Res.

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Bioethanol, as a renewable energy source, is receiving continuous attention for efficient recovery in aqueous solution. In this work, high-permeable ethanol mix matrix membranes (MMMs) were prepared by incorporating covalent organic framework-300 (COF-300) into polydimethylsiloxane (PDMS) by solution blending. The morphology, functional groups, surface roughness, contact angle, and swelling degree of MMMs before and after COF-300 loading were characterized and analyzed. The encouraging finding is that the incorporation of porous COF-300 particles results in a significant enhancement of the hydrophobicity and ethanol affinity, which in turn increases the total flux and separation factor. The pervaporation results showed that the total flux reached 1515.28 g•m −2 •h −1 and the separation factor reached 8.7 at a 3 wt % COF loading. Compared with pure PDMS, the total flux and separation factor of MMMs increased by 71.4 and 7.8%, respectively. Primarily based on the unique pore structure characteristics of COF-300, it can provide ultrafast channels for ethanol molecules. At the same time, COF-300 itself is a porous hydrophobicity particle with good ethanol affinity, which will promote the diffusion of ethanol molecules, further promote membrane swelling, and thus increase the separation factor and flux. Moreover, the MMMs in this work exhibited satisfactory stability during 6 months of continuous operation. Therefore, COF-300 is expected to be an ideal filler material to improve the separation performance of permeable ethanol membranes.

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Mechanical characterization and structural analysis of elastodontic appliances under intraoral and artificial aging conditions

Cui,

Huang,

et al. 2024

BMC Oral Health

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Preparation of modified MFI-type/PDMS composite membranes for the separation of dichlorobenzene isomersviapervaporation

Abstract: Modified MFI-type/PDMS composite membranes are used to separate dichlorobenzene isomer via pervaporation for the first time, which is synthesized by incorporating modified silicalite-1 zeolites into the PDMS matrix and casting on PVDF supports.

Cited by 3 publications

References 49 publications

Host compounds based on the rigid 9,10-dihydro-9,10-ethanoanthracene framework: selectivity behaviour in mixed isomeric dichlorobenzenes

Host compounds based on the rigid 9,10-dihydro-9,10-ethanoanthracene framework: selectivity behaviour in mixed isomeric dichlorobenzenes

Preparation of Covalent Organic Framework/PDMS Mixed Matrix Membranes for Efficient Ethanol Recovery via Pervaporation

Mechanical characterization and structural analysis of elastodontic appliances under intraoral and artificial aging conditions

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