Photo-reduction of NO by g-C3N4@foamed ceramic

doi:10.1016/j.cjche.2020.02.020

Abstract

Abstract: G-C₃N₄ was supported on the surface of foamed ceramic, and the g-C₃N₄@foamed ceramic was packed in the photocatalytic reactor in a layered manner. Effects of urea and H₂O₂ concentration on NO conversion were investigated. Pulse experiments were carried out to investigate the change of NO conversion with time under different concentrations of H₂O₂. The contribution of each route that NO converted and the selectivities of products were calculated. Results showed that the photo-reduction of NO accounted for 2%, and the photo-oxidation of NO accounted for 14%, and the rest was absorbed by the humidifier. Products include ammonia (NH+ 4-N), nitrogen (N₂), nitrite (NO-2-N) and nitrate (NO-3-N), of which N₂ accounted for 9%.

Key words: deNO_X, Photocatalysis, g-C₃N₄@foamed ceramic, Photo-reduction

摘要： G-C₃N₄ was supported on the surface of foamed ceramic, and the g-C₃N₄@foamed ceramic was packed in the photocatalytic reactor in a layered manner. Effects of urea and H₂O₂ concentration on NO conversion were investigated. Pulse experiments were carried out to investigate the change of NO conversion with time under different concentrations of H₂O₂. The contribution of each route that NO converted and the selectivities of products were calculated. Results showed that the photo-reduction of NO accounted for 2%, and the photo-oxidation of NO accounted for 14%, and the rest was absorbed by the humidifier. Products include ammonia (NH+ 4-N), nitrogen (N₂), nitrite (NO-2-N) and nitrate (NO-3-N), of which N₂ accounted for 9%.

关键词: deNO_X, Photocatalysis, g-C₃N₄@foamed ceramic, Photo-reduction

Rui Zheng, Chunhu Li, Chengzhen Zhang, Wentai Wang, Liang Wang, Lijuan Feng, Junjie Bian. Photo-reduction of NO by g-C₃N₄@foamed ceramic[J]. Chinese Journal of Chemical Engineering, 2020, 28(7): 1840-1846.

Rui Zheng, Chunhu Li, Chengzhen Zhang, Wentai Wang, Liang Wang, Lijuan Feng, Junjie Bian. Photo-reduction of NO by g-C₃N₄@foamed ceramic[J]. 中国化学工程学报, 2020, 28(7): 1840-1846.

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Photo-reduction of NO by g-C₃N₄@foamed ceramic

Photo-reduction of NO by g-C₃N₄@foamed ceramic

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