Synthesis of VOC-sensing Dyes for Fabrication of Cotton-based Chromogenic Sensors

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2022-09-05 DOI:10.1007/s10570-022-04775-4

Junheon Lee, Namju Park, Taekyeong Kim

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引用次数: 1

Abstract

Three vapochromic dyes named DiMo, MoMe, DiMe with different substituents were synthesized and investigated on their color change properties after exposure to 32 organic solvents after dyeing on cotton fabrics. The cotton-based sensor exhibited strong sensing properties to polar solvents rather than non-polar solvents. Especially, N,N-dimethylformamide detection was the best showing a color difference of 12.8 for DiMo, 21.4 for MoMe, and 25.8 for DiMe under 300 ppm exposure. Even at as low concentration as 10 ppm of N,N-dimethylformamide, the color change values were reached 7.3, 10.6, and 13.6 within an hour. The maximum absorption wavelength of the cotton-based sensor was shifted from 580 to 560, 570 to 560, and 560 to 540 nm, respectively, by the N,N-dimethylformamide exposure. The sensing mechanism was considered to depend on solvatochromism, aggregational properties of the dyes and adsorption amount of volatile organic compounds on textile substrates on which the dyes were applied. Finally, the reusability of the cotton-based sensor was tested for 10 cycles.

Graphical abstract

Abstract Image

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用于棉基显色传感器的voc感测染料的合成

合成了具有不同取代基的三种气相变色染料DiMo、MoMe、DiMe，并研究了它们在棉织物上染色后暴露于32种有机溶剂后的变色性能。棉基传感器对极性溶剂的传感性能优于非极性溶剂。其中，N,N-二甲基甲酰胺检测效果最好，在300 ppm暴露条件下，DiMo的色差为12.8,MoMe为21.4,DiMe为25.8。即使在低至10ppm的N,N-二甲基甲酰胺浓度下，1小时内颜色变化值分别达到7.3、10.6和13.6。在N,N-二甲基甲酰胺的作用下，棉基传感器的最大吸收波长分别从580 ~ 560nm、570 ~ 560nm和560 ~ 540nm变化。其传感机理主要取决于染料的溶剂变色性、染料的聚集性以及染料在织物上对挥发性有机物的吸附量。最后，对棉基传感器的可重复使用性进行了10次循环测试。图形抽象

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.