Oxygen Vacancy-Dependent Photocatalytic Activity of Well-Defined Bi2Sn2O7-x Hollow Nanocubes on NOx Removal

2021 ◽  
Author(s):  
Yanfeng Lu ◽  
Meijuan Chen ◽  
Tingting Huang ◽  
Yu Huang ◽  
Junji Cao ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancy ◽  
Oxygen Vacancies ◽  
Nox Removal ◽  
No Removal

Intricate engineering of oxygen vacancies (OVs) to trap kinetically diffusible rarefied NO gas and to enhance the population of long-lived electrons remains a great challenge for NO removal in outdoor...

In situ synthesis of Cl-doped Bi2O2CO3 and its enhancement of photocatalytic activity by inducing generation of oxygen vacancies

2020 ◽  
Vol 7 (16) ◽  
pp. 2969-2978
Author(s):  
Jie-hao Li ◽  
Jie Ren ◽  
Ying Liu ◽  
Hui-ying Mu ◽  
Rui-hong Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ionic Liquids ◽  
Oxygen Vacancy ◽  
Oxygen Vacancies ◽  
In Situ Synthesis ◽  
Photocatalytic Mechanism

Cl-Doped Bi2O2CO3 is prepared using ionic liquids as dopants and the oxygen-vacancy-induced photocatalytic mechanism is revealed.

scholarly journals Enhancing Photocatalytic Activity of NO Removal through an In Situ Control of Oxygen Vacancies in Growth of TiO 2

2019 ◽  
Vol 6 (19) ◽  
pp. 1901032 ◽  
Author(s):  
Xiaoling Shen ◽  
Guohui Dong ◽  
Lan Wang ◽  
Liqun Ye ◽  
Jianwu Sun
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancies ◽  
No Removal ◽  
In Situ Control

scholarly journals Enhancing Photocatalytic Activity of NO Removal through an In Situ Control of Oxygen Vacancies in Growth of TiO 2

2019 ◽  
Vol 6 (23) ◽  
pp. 1901614 ◽  
Author(s):  
Xiaoling Shen ◽  
Guohui Dong ◽  
Lan Wang ◽  
Liqun Ye ◽  
Jianwu Sun
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancies ◽  
No Removal ◽  
In Situ Control

scholarly journals Facile Strategy for Synthesizing Non-Stoichiometric Monoclinic Structured Tungsten Trioxide (WO3−x) with Plasma Resonance Absorption and Enhanced Photocatalytic Activity

Nanomaterials ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 553 ◽  
Author(s):  
Shihao Chen ◽  
Yang Xiao ◽  
Wei Xie ◽  
Yinhai Wang ◽  
Zhengfa Hu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancy ◽  
Metal Oxides ◽  
Tungsten Trioxide ◽  
Oxygen Vacancies ◽  
Near Infrared ◽  
Treatment Method ◽  
Hydrogen Treatment ◽  
Vacancy Defects ◽  
And Control

Oxygen vacancy defects play an important role in improving the light-capturing and photocatalytic activity of tungsten trioxide (WO3). However, the hydrogen treatment method that is commonly used to introduce oxygen vacancies is expensive and dangerous. Therefore, the introduction and control of oxygen vacancy defects in WO3 remains a challenge. Here, we demonstrated that oxygen vacancies could be successfully introduced into WO3−x while using a facile method through low temperature annealing in alcohol. The obtained WO3−x samples with optimal oxygen vacancies showed strong absorption of light, extending from the ultraviolet to the visible and near-infrared regions, and exhibits strong plasmon resonance from 400–1200 nm peaking at approximately 800 nm. When compared to pristine WO3, the photocatalytic activity of WO3−x was greatly improved in the ultraviolet and visible regions. This study provides a simple and efficient method to generate oxygen vacancies in WO3 for photocatalysis, which may be applied in the photoelectrochemical, electrochromic, and photochromic fields. Because oxygen vacancy is a common characteristic of metal oxides, the findings that are presented herein may be extended to other metal oxides.

La-Doped ZnWO4 nanorods with enhanced photocatalytic activity for NO removal: effects of La doping and oxygen vacancies

2020 ◽  
Vol 7 (2) ◽  
pp. 356-368 ◽  
Author(s):  
Junli Nie ◽  
Qadeer-Ul Hassan ◽  
Yuefa Jia ◽  
Jianzhi Gao ◽  
Jianhong Peng ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Method ◽  
Oxygen Vacancies ◽  
Light Irradiation ◽  
Solar Light ◽  
No Removal ◽  
La Doping ◽  
Simulated Solar Light ◽  
Solar Light Irradiation ◽  
La Doped

La3+-Doped ZnWO4 nanorods were prepared via a hydrothermal method for the photocatalytic NO removal under simulated solar light irradiation.

Enhanced photocatalytic activity of perovskite NaNbO3 by oxygen vacancy engineering

2019 ◽  
Vol 21 (22) ◽  
pp. 11697-11704 ◽  
Author(s):  
Bian Yang ◽  
Jihong Bian ◽  
Lei Wang ◽  
Jianwei Wang ◽  
Yaping Du ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancy

Oxygen vacancy engineering can improve the photocatalytic activity of perovskite NaNbO3.

Chemoselective Hydrogenation of Cinnamaldehyde over Tailored Oxygen Vacancy Rich Pd@ZrO2 Catalyst

2021 ◽  
Author(s):  
Komal N. Patil ◽  
Divya Prasad ◽  
Jayesh T. Bhanushali ◽  
Bhalchandra Kakade ◽  
Arvind H. Jadhav ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Selective Hydrogenation ◽  
Oxygen Vacancies ◽  
Synthesis Method ◽  
Chemoselective Hydrogenation ◽  
Zro2 Catalyst ◽  
Industrial Relevance

Selective hydrogenation of cinnamaldehyde to hydrocinnamaldehyde is captivating due to its industrial relevance. Herein, two-step synthesis method was adopted to develop oxygen vacancies in Pd@ZrO2 catalysts. The oxygen vacancies were...

A hierarchical oxygen vacancy-rich WO3 with “nanowire-array-on-nanosheet-array” structure for highly efficient oxygen evolution reaction

2019 ◽  
Vol 7 (12) ◽  
pp. 6730-6739 ◽  
Author(s):  
Jinxiang Diao ◽  
Wenyu Yuan ◽  
Yu Qiu ◽  
Laifei Cheng ◽  
Xiaohui Guo
Keyword(s):  
Oxygen Vacancy ◽  
Oxygen Evolution Reaction ◽  
Oxygen Vacancies ◽  
State Of The Art ◽  
Nanowire Array ◽  
Nanowire Arrays ◽  
Nanosheet Array ◽  
Nanosheet Arrays ◽  
Array Structure ◽  
First Time

Hierarchical vertical WO3 nanowire arrays on vertical WO3 nanosheet arrays with rich oxygen vacancies were synthesized via a simple and facile method, and the outstanding OER performance which is superior to that of most reported state-of-the-art catalysts was reported for the first time.

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