期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 20, 页码 23084-23093出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c03498
关键词
acetone gas-sensing; oxygen plasma; gas-sensing mechanism; specific surface area; response sensitivity
资金
- National Natural Science Foundation of China [61501081, 61574025, 11474045, 61501271]
- Natural Science Foundation of Liaoning Province [2015020096]
- Natural Science Foundation of Shandong Province [ZR2019BA010]
- Project of Introduction and Cultivation for Young Innovative Talents in Colleges and Universities of Shandong Province
- High Performance Computing Center of Qufu Normal University
In this Article, ZnO nanofibers were prepared by electrospinning. The as-prepared ZnO electrospun fibers were treated with plasma. The morphology, structure, and element content of the ZnO nanofibers greatly changed after treatment with different plasmas. The test results indicated that the acetone-sensing performance was remarkably improved for oxygen-plasma-assisted ZnO nanofibers. Furthermore, the density function theory (DFT) calculation results revealed that the acetone adsorption energy of ZnO nanofibers treated with oxygen plasma was 2 times greater than that of untreated ZnO nanofibers, and the electrons transferred between ZnO nanofibers and acetone molecules produced a more remarkable change in electronic structure for the oxygen-plasma-treated ZnO nanofibers. Our work demonstrates that the oxygen plasma treatment method can help improve the acetone-sensing performance of ZnO nanofibers.
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