In situ formation of defect-engineered N-doped TiO2 porous mesocrystals for enhanced photodegradation and PEC performance

被引：28

作者：

Kang, Xiaolan ^{[1
]}

Song, Xue-Zhi ^{[1
]}

Liu, Sihang ^{[1
]}

Pei, Mingzhu ^{[1
]}

Wen, Wen ^{[1
]}

Tan, Zhenquan ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Petr & Chem Engn, Panjin 124221, Peoples R China

来源：

NANOSCALE ADVANCES | 2019年 / 1卷 / 04期

基金：

中国国家自然科学基金;

关键词：

EXPOSED; 001; FACETS; VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE; ANATASE TIO2; BLACK TIO2; WATER; NANOSHEETS; OXIDATION; NITROGEN;

D O I：

10.1039/c8na00193f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

N-Doped oxygen defective N/TiO2 x mesocrystal nanocubes were successfully prepared by a facile strategy in our system. Crystal topotactic transformation from NH4TiOF3 mesocrystals facilitated the formation of a porous structure of TiO2. Meanwhile, the introduction of N dopants and oxygen vacancies ( OVs) was also achieved during this process. The as-prepared products exhibit much higher photoelectrochemical ( PEC) and photocatalytic degradation performance under visible light illumination. It is suggested that the promising catalytic properties result from the synergistic effect of doping, OVs and the amazing porous mesocrystal structure of N/TiO2 x.

引用

页码：1372 / 1379

页数：8

共 46 条

[1] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].

Asahi, R ;

Morikawa, T ;

Ohwaki, T ;

Aoki, K ;

Taga, Y .

SCIENCE, 2001, 293 (5528) :269-271

[2] Nitrogen-Doped Titanium Dioxide as Visible-Light-Sensitive Photocatalyst: Designs, Developments, and Prospects [J].

Asahi, Ryoji ;

Morikawa, Takeshi ;

Irie, Hiroshi ;

Ohwaki, Takeshi .

CHEMICAL REVIEWS, 2014, 114 (19) :9824-9852

[3] Modification of N-doped TiO2 photocatalysts using noble metals (Pt, Pd) - a combined XPS and DFT study [J].

Batalovic, K. ;

Bundaleski, N. ;

Radakovic, J. ;

Abazovic, N. ;

Mitric, M. ;

Silva, R. A. ;

Savic, M. ;

Belosevic-Cavor, J. ;

Rakocevic, Z. ;

Rangel, C. M. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2017, 19 (10) :7062-7071

[4] Ni-Nanocluster Modified Black TiO2 with Dual Active Sites for Selective Photocatalytic CO2 Reduction [J].

Billo, Tadesse ;

Fu, Fang-Yu ;

Raghunath, Putikam ;

Shown, Indrajit ;

Chen, Wei-Fu ;

Lien, Hsiang-Ting ;

Shen, Tzu-Hsien ;

Lee, Jyh-Fu ;

Chan, Ting-Shan ;

Huang, Kuo-You ;

Wu, Chih-I ;

Lin, M. C. ;

Hwang, Jih-Shang ;

Lee, Chih-Hao ;

Chen, Li-Chyong ;

Chen, Kuei-Hsien .

SMALL, 2018, 14 (02)

[5] TiO2 mesocrystals: Synthesis, formation mechanisms and applications [J].

Cai JinGuang ;

Qi LiMin .

SCIENCE CHINA-CHEMISTRY, 2012, 55 (11) :2318-2326

[6] Synthesis of black TiO2 with efficient visible-light photocatalytic activity by ultraviolet light irradiation and low temperature annealing [J].

Chen, Shihao ;

Wang, Yinhai ;

Li, Jun ;

Hu, Zhengfa ;

Zhao, Hui ;

Xie, Wei ;

Wei, Zhigang .

MATERIALS RESEARCH BULLETIN, 2018, 98 :280-287

[7] Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals [J].

Chen, Xiaobo ;

Liu, Lei ;

Yu, Peter Y. ;

Mao, Samuel S. .

SCIENCE, 2011, 331 (6018) :746-750

[8] Mesocrystals:: Inorganic superstructures made by highly parallel crystallization and controlled alignment [J].

Cölfen, H ;

Antonietti, M .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (35) :5576-5591

[9] Crystal Defect Engineering of Aurivillius Bi2MoO6 by Ce Doping for Increased Reactive Species Production in Photocatalysis [J].

Dai, Zan ;

Qin, Fan ;

Zhao, Huiping ;

Ding, Jie ;

Liu, Yunling ;

Chen, Rong .

ACS CATALYSIS, 2016, 6 (05) :3180-3192

[10] An effective method for the preparation of high temperature stable anatase TiO2 photocatalysts [J].

Fagan, Rachel ;

Synnott, Damian W. ;

McCormack, Declan E. ;

Pillai, Suresh C. .

APPLIED SURFACE SCIENCE, 2016, 371 :447-452

← 1 2 3 4 5 →