水热合成 WO₃·0.33H₂O 纳米棒束作为高灵敏度环己烯传感器

Hydrothermal Synthesis of WO₃·0.33H₂O Nanorod Bundles as a Highly Sensitive Cyclohexene Sensor.

机构信息

Ministry Key Laboratory of Oil and Gas Fine Chemicals, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.

The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.

出版信息

Sensors (Basel). 2019 Mar 12;19(5):1257. doi: 10.3390/s19051257.

DOI:10.3390/s19051257

PMID:30871099

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6427590/

Abstract

In this paper, WO₃·0.33H₂O nanorods were prepared through a simple hydrothermal method using p-aminobenzoic acid (PABA) as an auxiliary reagent. X-ray diffraction (XRD) and transmission electron microscopy (TEM) images showed that the products with PABA addition were orthorhombic WO₃·0.33H₂O, which were mainly composed of nanorods with different crystal planes. The sensing performance of WO₃·0.33H₂O nanorod bundles prepared by the addition of PABA (100 ppm cyclohexene, Ra/Rg = 50.6) was found to be better than the WO₃ synthesized without PABA (100 ppm cyclohexene, Ra/Rg = 1.3) for the detection of cyclohexene. The new synthesis route and sensing characteristics of as-synthesized WO₃·0.33H₂O nanorods revealed a promising candidate for the preparation of the cost-effective gas sensors.

摘要

本文采用简单的水热法，以对氨基苯甲酸（PABA）作为辅助试剂，制备了 WO₃·0.33H₂O 纳米棒。X 射线衍射（XRD）和透射电子显微镜（TEM）图像表明，添加 PABA 的产物为正交 WO₃·0.33H₂O，主要由不同晶面的纳米棒组成。添加 PABA（100 ppm 环己烯，Ra/Rg = 50.6）制备的 WO₃·0.33H₂O 纳米棒束的传感性能优于未添加 PABA（100 ppm 环己烯，Ra/Rg = 1.3）的 WO₃ 对环己烯的检测。所合成的 WO₃·0.33H₂O 纳米棒的新合成路线和传感特性为制备具有成本效益的气体传感器提供了有前途的候选材料。