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
收藏
页码：3581 / 3590
页数：10
相关论文
共 45 条
[31]   Gas-Phase Photoelectrocatalysis for Breaking Down Nitric Oxide [J].
Xiao, Shuning ;
Wan, Zhe ;
Zhou, Jiachen ;
Li, Han ;
Zhang, Huiqiang ;
Su, Chenliang ;
Chen, Wei ;
Li, Guisheng ;
Zhang, Dieqing ;
Li, Hexing .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2019, 53 (12) :7145-7154
[32]   A chloroplast structured photocatalyst enabled by microwave synthesis [J].
Xiao, Shuning ;
Zhang, Dieqing ;
Pan, Donglai ;
Zhu, Wei ;
Liu, Peijue ;
Cai, Yong ;
Li, Guisheng ;
Li, Hexing .
NATURE COMMUNICATIONS, 2019, 10 (1)
[33]   Bimetal MOF derived mesocrystal ZnCo2O4 on rGO with High performance in visible-light photocatalytic NO oxidization [J].
Xiao, Shuning ;
Pan, Donglai ;
Liang, Rui ;
Dai, Wenrui ;
Zhang, Qitao ;
Zhang, Guoqiang ;
Su, Chenliang ;
Li, Hexing ;
Chen, Wei .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 236 :304-313
[34]   Ceria and ceria-based nanostructured materials for photoenergy applications [J].
Xie, Shilei ;
Wang, Zilong ;
Cheng, Faliang ;
Zhang, Peng ;
Mai, Wenjie ;
Tong, Yexiang .
NANO ENERGY, 2017, 34 :313-337
[35]   Efficient Removal of Formaldehyde by Nanosized Gold on Well-Defined CeO2 Nanorods at Room Temperature [J].
Xu, Quanlong ;
Lei, Wanying ;
Li, Xinyang ;
Qi, Xiaoying ;
Yu, Jiaguo ;
Liu, Gang ;
Wang, Jinlong ;
Zhang, Pengyi .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2014, 48 (16) :9702-9708
[36]   3D-Printed Grids with Polymeric Photocatalytic System as Flexible Air Filter [J].
Xu, Xi ;
Xiao, Shuning ;
Willy, Habimana Jean ;
Xiong, Ting ;
Borayek, Ramadan ;
Chen, Wei ;
Zhang, Dieqing ;
Ding, Jun .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2020, 262
[37]   Roles of photo-generated holes and oxygen vacancies in enhancing photocatalytic performance over CeO2 prepared by molten salt method [J].
Yang, Chen ;
Yang, Jian ;
Duan, Xu ;
Hu, Guang ;
Liu, Qingcai ;
Ren, Shan ;
Li, Jiangling ;
Kong, Ming .
ADVANCED POWDER TECHNOLOGY, 2020, 31 (09) :4072-4081
[38]   Reduction of Charge Recombination by an Amorphous Titanium Oxide Interlayer in Layered Graphene/Quantum Dots Photochemical Cells [J].
Yang, HongBin ;
Guo, ChunXian ;
Guai, Guan Hong ;
Song, QuanLiang ;
Jiang, San Ping ;
Li, Chang Ming .
ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (06) :1940-1945
[39]   One-step low-temperature synthesis of OD CeO2 quantum dots/2D BiOX (X = Cl, Br) nanoplates heterojunctions for highly boosting photo-oxidation and reduction ability [J].
Yang, Jian ;
Liang, Yujun ;
Li, Kai ;
Yang, Gui ;
Yin, Shu .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2019, 250 :17-30
[40]   Efficient NH3-SCR removal of NOx with highly ordered mesoporous WO3(χ)-CeO2 at low temperatures [J].
Zhan, Sihui ;
Zhang, He ;
Zhang, Yu ;
Shi, Qiang ;
Li, Yi ;
Li, XiuJun .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2017, 203 :199-209
12345