Photochemical reflective optical fiber sensor for selective detection of phenol in aqueous solutions

被引：9

作者：

Wang, Zhengkun ^{[1
]}

Zhong, Nianbing ^{[1
]}

Chen, Ming ^{[1
]}

Chang, Haixing ^{[2
]}

Zhong, Dengjie ^{[2
]}

Wu, Yongwu ^{[1
]}

Liu, Huimin ^{[1
]}

Xin, Xin ^{[1
]}

Zhao, Mingfu ^{[1
]}

Tang, Bing ^{[1
]}

Song, Tao ^{[1
]}

Shi, Shenghui ^{[1
]}

机构：

[1] Chongqing Univ Technol, Chongqing Energy Internet Engn Ctr, Chongqing Key Lab Fiber Opt Sensor & Photodetecto, Chongqing Key Lab Modern Photoelect Detect Techno, Chongqing 400054, Peoples R China

[2] Chongqing Univ Technol, Sch Chem & Chem Engn, Chongqing 400054, Peoples R China

来源：

APPLIED OPTICS | 2019年 / 58卷 / 08期

基金：

中国国家自然科学基金;

关键词：

PHOTOCATALYTIC ACTIVITY; SENSITIVITY; SURFACE; TEMPERATURE; ADSORPTION; BIOSENSOR; MEMBRANE; LACCASE; SYSTEM;

D O I：

10.1364/AO.58.002091

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A photochemical fiber-optic sensor was developed by integrating a plastic optical fiber (POF), polymer membrane, gold mirror, and TiO2-based composite, and was shown to sensitively and selectively detect phenol in aqueous solution. The sensing element consisted of a thinned POF and visible-light-driven SiO2/N-doped TiO2 coating. The gold mirror was used to develop a reflective POF probe. The polymer membrane with high phenol permselectivity was employed to form a micro-channel between the membrane and probe. Our findings highlight the sensor's capability of phenol detection in aqueous solutions with high sensitivity of 0.294 x 10(-3) (mg.L-1)(-1), pH immunity ranging from 2.0 to 14.0, and high selectivity with a limit of detection of 30 mu g.L-1. (C) 2019 Optical Society of America

引用

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页码：2091 / 2099

页数：9

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