Ozone generation enhanced by silica catalyst in packed-bed DBD reactor

Xin ZENG (曾鑫); Yafang ZHANG (章亚芳); Liangyin GUO (郭良银); Wenquan GU (古文泉); Ping YUAN (袁萍); Linsheng WEI (魏林生)

doi:10.1088/2058-6272/ac0244

Plasma Science and Technology > 2021 > 23(8): 85501-085501. > DOI: 10.1088/2058-6272/ac0244

Xin ZENG (曾鑫), Yafang ZHANG (章亚芳), Liangyin GUO (郭良银), Wenquan GU (古文泉), Ping YUAN (袁萍), Linsheng WEI (魏林生). Ozone generation enhanced by silica catalyst in packed-bed DBD reactor[J]. Plasma Science and Technology, 2021, 23(8): 85501-085501. DOI: 10.1088/2058-6272/ac0244

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Ozone generation enhanced by silica catalyst in packed-bed DBD reactor

School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, People's Republic of China

Funds: This work is supported by National Natural Science Foundation of China (No. 51867018), Jiangxi Province's Major Subject Academic and Technical Leader Training Program-Leading Talent Project (No. 20204BCJ22016), and the Innovation Fund Designed for Graduate Students of Jiangxi Province, China (No. YC2020-S118).

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Received Date: March 24, 2021
Revised Date: May 12, 2021
Accepted Date: May 16, 2021

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Abstract

Abstract

In this paper, three dielectric barrier discharge (DBD) configurations, which were plain DBD with no packing, DBD with packed pure quartz fibers and DBD with packed loaded quartz fibers, were employed to investigate the effect and catalytic mechanism of catalyst materials in a packed-bed ozone generator. From the experimental results, it was clear that the DBD configuration with packed pure fibers and packed loaded fibers promotes ozone generation. For the packed-bed reactor, ozone concentration and ozone yield were enhanced by an increase of electric field in the discharge gap with the packed-bed effect. Meanwhile, the enhancement of ozone concentration and yield for the DBD reactor packed by loaded fibers with silica nanoparticles was due to the catalysis of silica nanoparticles on the fiber surface. The adsorption of silica nanoparticles on the fiber surface can prolong the retention time of active species and enhance surface reactions.
- DBD,
- ozone generation,
- packed-bed reactor,
- silica catalysis,
- surface reaction

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Ozone generation enhanced by silica catalyst in packed-bed DBD reactor