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

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 polymeriza...

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Main Authors: Hiroki Noguchi, Marzia Sultana, Nanami Hano, Yutaka Kuwahara, Makoto Takafuji, Shoji Nagaoka, Hongdeng Qiu, Hirotaka Ihara
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/10/9/1882
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author Hiroki Noguchi
Marzia Sultana
Nanami Hano
Yutaka Kuwahara
Makoto Takafuji
Shoji Nagaoka
Hongdeng Qiu
Hirotaka Ihara
author_facet Hiroki Noguchi
Marzia Sultana
Nanami Hano
Yutaka Kuwahara
Makoto Takafuji
Shoji Nagaoka
Hongdeng Qiu
Hirotaka Ihara
author_sort Hiroki Noguchi
collection DOAJ
description 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 <i>trans</i>- and <i>cis-</i>stilbenes reached 14.0 with the black layer-laminated porous silica, whereas it was below 1.2 with simple hydrophobized silica.
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spelling doaj.art-0f7f99cf1d0e4e4aa09b49b37cce5aad2023-11-20T14:24:43ZengMDPI AGNanomaterials2079-49912020-09-01109188210.3390/nano10091882Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica SurfaceHiroki Noguchi0Marzia Sultana1Nanami Hano2Yutaka Kuwahara3Makoto Takafuji4Shoji Nagaoka5Hongdeng Qiu6Hirotaka Ihara7Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanDepartment of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanDepartment of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanDepartment of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanDepartment of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanDepartment of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanLanzhou Institute of Chemical Physics, Chinese Academy of Science, 18, Tianshui Middle Road, Lanzhou 730000, ChinaDepartment of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanThis 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 <i>trans</i>- and <i>cis-</i>stilbenes reached 14.0 with the black layer-laminated porous silica, whereas it was below 1.2 with simple hydrophobized silica.https://www.mdpi.com/2079-4991/10/9/1882amorphous carbonblack materialsorganic-inorganic hybrid materialsπ–π interactionadsorbentgeometrical selectivity
spellingShingle Hiroki Noguchi
Marzia Sultana
Nanami Hano
Yutaka Kuwahara
Makoto Takafuji
Shoji Nagaoka
Hongdeng Qiu
Hirotaka Ihara
Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface
Nanomaterials
amorphous carbon
black materials
organic-inorganic hybrid materials
π–π interaction
adsorbent
geometrical selectivity
title Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface
title_full Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface
title_fullStr Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface
title_full_unstemmed Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface
title_short Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface
title_sort fabrication of carbon like π conjugated organic layer on a nano porous silica surface
topic amorphous carbon
black materials
organic-inorganic hybrid materials
π–π interaction
adsorbent
geometrical selectivity
url https://www.mdpi.com/2079-4991/10/9/1882
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