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Table 3 Synthesized microporous silica for mixed matrix membranes (MMMs)

From: Silica applied as mixed matrix membrane inorganic filler for gas separation: a review

Silica precursor

Chemical reagent

Surface area (m2 g− 1)

Pore size (nm)

Particle size (nm)

Incorporated polymer

Ref

Tetramethyl orthosilicate

Dimethylacetamide

–

–

–

PA

[27]

Tetraethyl orthosilicate

Hydrochloric acid, ethanol

–

–

–

PBI

[17]

–

–

–

PSf/PI

[16]

577.29

2.2

2

PPO

[49]

   

PU

[50, 51]

2,2,4-Trimethyl pentane

–

–

9.4

FPI

[52]

Ammonium hydroxide, ethanol

–

–

45

6FDA-6FpDA-DABA

[26]

118.2

 

180

SPEEK

[38]

  1. PA polyamide, PBI polybenzimidazole, PSf polysulfone, PI polyimide, PPO polyphenylene oxide, PU polyurethane, 6FDA-6FpDA-DABA (4,4-hexafluoroisopropylidene diphthalic anhydride) – (4,4-hexafluoroisopropylidene dianiline) – (3,5-diaminobenzoic acid), SPEEK sulfonated polyether ether ketone, (−) not mentioned
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Sustainable Environment Research

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