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- Title
Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface.
- Authors
Noguchi, Hiroki; Sultana, Marzia; Hano, Nanami; Kuwahara, Yutaka; Takafuji, Makoto; Nagaoka, Shoji; Qiu, Hongdeng; Ihara, Hirotaka
- 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, 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 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.
- Subjects
POROUS silica; POROUS materials; SILICA; CONDENSATION reactions; RAW materials; CONJUGATED polymers
- Publication
Nanomaterials (2079-4991), 2020, Vol 10, Issue 9, p1882
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano10091882