Tapered Optical Fiber Detector for a Red Dye Concentration Measurement,Recent Patents on Nanotechnology

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Tapered Optical Fiber Detector for a Red Dye Concentration Measurement
Recent Patents on Nanotechnology ( IF 2.0 ) Pub Date : 2021-02-28 , DOI: 10.2174/1872210514666200626165916
Aleksandr A Polokhin ₁ , Oxana V Kharissova ₁ , Leticia M Torres-Martínez ₂ , Alexander Y Gerasimenko ₃ , Romeo Selvas ₁ , Jiechao Jiang ₄ , Boris I Kharisov ₅

Affiliation

Background: In this work, a detector based on optical fiber covered with Multi-Wall Carbon Nanotubes (MWCNTs) was used for sensing and removal of Alizarin from wastewaters. Alizarin is a strong anionic red dye that is part of the anthraquinone dye group. As a rule, this dye is used in the textile industry as a coloring agent. Experiments showed a good efficiency of wastewater treatment. This development could resolve the problem of water contamination with Alizarin red dye.

Methods: We used a single-mode fiber SMF-28e with a core diameter of 8.2 μm and a cladding diameter of 125 μm as a base for the tapered optical fiber detector. An MWCNTs array was synthesized on the tapered optical fiber detector surface by spray pyrolysis Chemical Vapor Deposition (CVD) method at 800oC for 20 min inside a tubular furnace, using ferrocene solution in toluene as a catalyst precursor. The formed structure was applied for Alizarin detection in water.

中文翻译：

锥形光纤检测器，用于红染料浓度测量

背景：在这项工作中，基于覆盖有多壁碳纳米管（MWCNT）的光纤的检测器用于感测和去除废水中的茜素。茜素是一种强阴离子型红色染料，是蒽醌染料组的一部分。通常，这种染料在纺织工业中用作着色剂。实验表明废水处理效率很高。这种发展可以解决茜素红染料对水的污染问题。

方法：我们使用纤芯直径为8.2μm，包层直径为125μm的单模光纤SMF-28e作为锥形光纤检测器的基础。在管式炉内，采用二甲苯中的二茂铁溶液作为催化剂前体，通过在800oC下通过喷雾热解化学气相沉积（CVD）方法在锥形光纤检测器表面上合成MWCNTs阵列，时间为20分钟。形成的结构用于水中茜素的检测。

更新日期：2021-05-04

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