Ag nanoparticles-functionalized dumbbell-shaped In2O3 derived from MIL-68(In) with excellent sensitivity to formaldehyde

被引：48

作者：

Sun, Jing ^{[1
]}

Song, Peng ^{[1
]}

Zhang, Shuai ^{[1
]}

Sima, Zenghui ^{[1
]}

Lu, ZhiChen ^{[1
]}

Wang, Qi ^{[1
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 888卷 / 888期

基金：

中国国家自然科学基金;

关键词：

Formaldehyde; Dumbbell-shaped indium oxide; MIL-68 (In); Ag nanoparticles; Gas sensors; GAS-SENSING PROPERTIES; SENSOR; SNO2; PERFORMANCE; NANOSPHERES; NANOFIBERS; NANORODS; SPHERES;

D O I：

10.1016/j.jallcom.2021.161509

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Formaldehyde, as a pollutant gas produced by indoor home decoration, threatens human health to Tablea large extent, so it is necessary to detect formaldehyde gas at low concentrations. The dumbbell-shaped indium oxide (In2O3) prepared with MIL-68(In) as the precursor was modified by Ag nanoparticles, and a series of characterization and analysis were performed on it. Field-emission scanning electronic microscope (FESEM) and transmission electron microscope (TEM) results showed that the Ag nanoparticles are successfully grown on the surface of In2O3. X-ray photoelectron spectroscopy (XPS) analysis confirmed the presence of Ag nanoparticles. The gas-sensing results showed that to 20 ppm formaldehyde, In2O3/Ag showed the highest response (29.9) at 160 degrees C, and the sensor showed high and rapid response-recovery, good reproducibility, and remarkable stability. This work proves that loading Ag is a feasible method to improve the performance of In2O3 based gas sensor. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：11

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