Simultaneous oxidation of NO and acetaldehyde over bare and Fe-modified TiO2 under visible light irradiation

被引：7

作者：

Zhao, Shufang ^{[1
]}

Choe, Huicheol ^{[1
]}

Saqlain, Shahid ^{[2
]}

Hwang, Chan-Cuk ^{[4
]}

Liu, Zhongyi ^{[3
]}

Choi, Yebin ^{[1
]}

Peng, Zhikun ^{[3
]}

Kim, Young Dok ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 16419, South Korea

[2] Korea Inst Sci & Technol, Extreme Mat Res Ctr, Seoul 02792, South Korea

[3] Zhengzhou Univ, Henan Inst Adv Technol, Coll Chem, Green Catalysis Ctr, Zhengzhou 450001, Peoples R China

[4] POSTECH, Pohang Accelerator Lab, Pohang 37673, South Korea

来源：

APPLIED SURFACE SCIENCE | 2023年 / 627卷

基金：

新加坡国家研究基金会;

关键词：

Simultaneous oxidation of NO and; acetaldehyde; Visible light -driven photocatalysis; TRPL; Operando DRIFTS; Fe modifiedTiO2 particles; VOLATILE ORGANIC-COMPOUNDS; NITROGEN-OXIDES; PHOTOCATALYSIS; CHEMISTRY; VOCS;

D O I：

10.1016/j.apsusc.2023.157308

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photocatalytic behavior of bare and Fe-modified TiO2 (0.4 wt% and 1 wt% of Fe loading, respectively) in the rutile phase was studied for the oxidation of NO and acetaldehyde under visible light irradiation. 0.4 wt% FeTiO2 photocatalysts showed the highest activity towards oxidation of NO and acetaldehyde when pollutants were used individually. Boosted activity of 0.4 wt% Fe-TiO2 can be attributed to abundant Fe-oxide-TiO2 interface acting as active sites during reaction process. Moreover, when NO and acetaldehyde were used simultaneously, complex and mutual influential photocatalytic activity was evident, depending on reactants concentrations and photocatalysts structures. Bare TiO2 showed high selectivity towards NO oxidation. Such complexity in mutual interactions between different pollutants on the photocatalyst surface is a crucial factor, which should be considered in real-world application of photocatalysts.

引用

页数：15

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