Perovskite LaFeO₃-SrTiO₃ composite for synergistically enhanced NO removal under visible light excitation

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• 作者：Qian Zhang^a ; ^b ; Yu Huang^a ; ^b ; ^{huangyu@ieecas.cn} ; Shiqi Peng^a ; Yufei Zhang^a ; Zhenxing Shen^c ; Jun-ji Cao^a ; ^b ; ^{cao@loess.llqg.ac.cn} ; Wingkei Ho^d ; Shun Cheng Lee^e ; David Y.H. Pui^f
• 关键词：Photocatalysis ; NOx removal ; Perovskite nanomaterials ; SrTiO3 ; LaFeO3
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：5 May 2017
• 年：2017
• 卷：204
• 期：Complete
• 页码：346-357
• 全文大小：4118 K
• 卷排序：204

文摘

Perovskite LaFeO3/SrTiO3 nanocomposites are prepared via a solution based strategy. The composites show enhanced photocatalytic activity for NO than bare counterparts. The improved activity is due to lattice-matched interface and built-in electric field. TPD analysis confirms the chemisorption of the composites for NO at room temperature. The direct hole transfer and O2− mediated pathway for NO oxidation is proposed.