ROOM-TEMPERATURE PPB-LEVEL ANILINE VAPOR SENSOR FUNCTIONALIZED WITH UIO-66-SO3H

IF 0.5 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Quimica Nova Pub Date : 2023-02-01 DOI:10.21577/0100-4042.20170958

Jun Cai, Luyu Wang, Yunling Wu

引用次数: 1

Abstract

Aniline vapor must be immediately detected at low concentrations since it is a hazardous gaseous chemical. Here, ppb level aniline vapor is detected using the metal-organic framework of UIO-66-SO3H. Utilizing a quartz crystal microbalance (QCM) sensing platform, the aniline adsorption-induced mass change of UIO-66-SO3H is converted to a signal of frequency shift. The sensor can detect a concentration of 20 ppb of aniline vapor and has good sensitivity for this purpose. Additionally, the sensor’s repeatability and stability are satisfactory. Notably, the sensor’s selectivity is prominent. Its response to aniline is much higher than that of ten interfering gases and BTEX vapor. And even in conditions with varying levels of humidity, this sensor maintains response stability.

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以uio-66-so3h功能化的室温ppb级苯胺蒸汽传感器

苯胺蒸汽必须在低浓度下立即检测到，因为它是一种危险的气体化学物质。在这里，使用UIO-66-SO3H的金属有机框架检测ppb级苯胺蒸汽。利用石英晶体微天平(QCM)传感平台，将苯胺吸附引起的uuo -66- so3h质量变化转化为频移信号。该传感器可检测浓度为20 ppb的苯胺蒸气，并具有良好的灵敏度。此外，该传感器的重复性和稳定性令人满意。值得注意的是，传感器的选择性是突出的。它对苯胺的响应远高于其他干扰气体和BTEX蒸气。即使在不同湿度的条件下，该传感器也能保持响应稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Quimica Nova 化学-化学综合

CiteScore

1.60

自引率

12.50%

发文量

审稿时长

2-4 weeks

期刊介绍： Química Nova publishes in portuguese, spanish and english, original research articles, revisions, technical notes and articles about education in chemistry. All the manuscripts submitted to QN are evaluated by, at least, two reviewers (from Brazil and abroad) of recognized expertise in the field of chemistry involved in the manuscript. The Editorial Council can be eventually asked to review manuscripts. Editors are responsible for the final edition of QN.