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Thiophene-based porous organic networks for volatile iodine capture and effectively detection of mercury ion.

ABSTRACT: A series of conjugated microporous polymers containing thiophene-moieties (SCMP-COOH@1-3) was obtained by a homo-coupling polymerization reaction. Then the SCMP-COOH@1-3 were directly pyrolyzed without any templates to synthesize the porous carbon networks, named as SCMP-600@1, 2 and 3. SCMP-600@1-3 possess moderate BET surface area of 362-642 m² g^-1, have a permanent porous structure and plenty of sulfur and oxygen units in the skeletons as effective sorption sites, and display a high absorption performance for iodine vapour with an uptake up to 204 wt.%. In addition, SCMP-COOH@1-3 polymers can be used to effectively detect mercury ion from ethanol-water solution. Interestingly, under the same concentration of Hg²⁺ conditions, the detection ability of mercury ion of porous materials increased with the increase of the pore volumes and the specific surface.

SUBMITTER: Liu M

PROVIDER: S-EPMC6145875 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Thiophene-based porous organic networks for volatile iodine capture and effectively detection of mercury ion.

Liu Minghan M Yao Chan C Liu Chunbo C Xu Yanhong Y

Scientific reports 20180919 1

A series of conjugated microporous polymers containing thiophene-moieties (SCMP-COOH@1-3) was obtained by a homo-coupling polymerization reaction. Then the SCMP-COOH@1-3 were directly pyrolyzed without any templates to synthesize the porous carbon networks, named as SCMP-600@1, 2 and 3. SCMP-600@1-3 possess moderate BET surface area of 362-642 m<sup>2</sup> g<sup>-1</sup>, have a permanent porous structure and plenty of sulfur and oxygen units in the skeletons as effective sorption sites, and di ...[more]

PMID: 30232393

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