Carbon Nanotube-Threaded Mesocrystalline CeO2 for Enhanced Photocatalytic NO Removal

被引：19

作者：

Xiao, Shuning ^{[1
]}

Zhang, Ningyu ^{[1
]}

Tao, Ying ^{[2
]}

Song, Xueling ^{[1
]}

Li, Guisheng ^{[1
]}

Li, Hexing ^{[2
]}

Zhang, Dieqing ^{[2
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Mat & Chem, Shanghai 200093, Peoples R China

[2] Shanghai Normal Univ, Coll Chem & Mat Sci, Key Lab Resource Chem, Minist Educ, Shanghai 200234, Peoples R China

来源：

ACS APPLIED NANO MATERIALS | 2022年 / 5卷 / 03期

基金：

中国国家自然科学基金;

关键词：

microwave synthesis; carbon nanotubes; CeO2; mesocrystals; photocatalysis; NO oxidation; PERFORMANCE; EFFICIENT; OXIDE; HETEROJUNCTIONS; PURIFICATION; MECHANISMS; COMPOSITE; NANORODS;

D O I：

10.1021/acsanm.1c04210

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The synthesis of photocatalysts with rapid photogenerated electron transfer, strong reactant adsorption, and activation is urgent to promote photocatalytic NO oxidation. Herein, we construct a series of carbon nanotube (CNT)-threaded CeO2 mesocrystalline photocatalysts applying the microwave thermal method. The noncontinuous CNT-threaded structure provides two interfacial charge transport pathways for the efficient separation of photogenerated carriers. The introduction of CNTs induces mesocrystalline CeO2 with surface Ce3+ and oxygen vacancies, which is in favor of adsorption and activation for reactants, further facilitating a deep oxidation pathway for NO removal. The optimal photocatalyst exhibits a remarkable conversion ratio for NO oxidation and NO3- selectivity in a recyclable way.

引用

页码：3581 / 3590

页数：10

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