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Fabrication of Carbon-Like, ?-Conjugated Organic Layer on a Nano-Porous Silica Surface.

ABSTRACT: This paper presents a new type of black organic material-porous silica composite providing an extremely highly selective adsorption surface. This black composite was prepared by lamination on nano-sized pores with a carbon-like, ?-extended structure, which can be converted via the on-site polymerization of 1,5-dihydroxynaphthalene with a triazinane derivative and a thermally induced condensation reaction with denitrification. This bottom-up fabrication method on porous materials had the great advantage of maintaining the pore characteristics of a raw porous material, but also the resultant black surface exhibited an extremely high molecular-shape selectivity; for example, that for trans- and cis-stilbenes reached 14.0 with the black layer-laminated porous silica, whereas it was below 1.2 with simple hydrophobized silica.

SUBMITTER: Noguchi H

PROVIDER: S-EPMC7558701 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface.

Noguchi Hiroki H Sultana Marzia M Hano Nanami N Kuwahara Yutaka Y Takafuji Makoto M Nagaoka Shoji S Qiu Hongdeng H Ihara Hirotaka H

Nanomaterials (Basel, Switzerland) 20200920 9

This paper presents a new type of black organic material-porous silica composite providing an extremely highly selective adsorption surface. This black composite was prepared by lamination on nano-sized pores with a carbon-like, π-extended structure, which can be converted via the on-site polymerization of 1,5-dihydroxynaphthalene with a triazinane derivative and a thermally induced condensation reaction with denitrification. This bottom-up fabrication method on porous materials had the great ad ...[more]

PMID: 32962263

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