Konjac glucomannan template based synthesis of porous ZnO nanostructures for enhanced ethanolamine gas detection

IF 2 3区化学 Q4 CHEMISTRY, PHYSICAL

Chemical Physics Pub Date : 2024-12-27 DOI:10.1016/j.chemphys.2024.112596

Bowei Liu, Jijun Ding, Haixia Chen, Haiwei Fu

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引用次数: 0

Abstract

Green and renewable konjac glucomannan (KGM) biomass material is acted as a template, porous KGM-ZnO nanostructures is synthesized combined with high-temperature calcination of zinc-based metal–organic frameworks (ZIF-8) and self-sacrificial template method. KGM-ZnO sensor has a response value of 313.49 to 100 ppm ethanolamine gas (EA) at 300 ℃ with a response/recovery time of 16 s/ 2 s. At the same time, it demonstrates excellent repeatability within five cycles and long-term stability for one month test. Furthermore, the response value of 2.26 for 1 ppm EA gas serves to illustrate the low detection threshold of the KGM-ZnO sensor. Excellent gas sensing performance is attributed to KGM-ZnO unique porous structure with high specific surface area, structural diversity and abundance of active sites, enhancing EA gas adsorption. It is significant to design gas-sensitive materials that are green, renewable, low-cost, and highly sensitive for exploring the green synthesis of organics and large-scale production applications.

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来源期刊

Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

4.30%

发文量

278

审稿时长

39 days

期刊介绍： Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.