scholarly journals Nanoscale Colocalization of Fluorogenic Probes Reveals the Role of Oxygen Vacancies in the Photocatalytic Activity of Tungsten Oxide Nanowires

ACS Catalysis ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 2088-2099 ◽  
Author(s):  
Meikun Shen ◽  
Tianben Ding ◽  
Steven T. Hartman ◽  
Fudong Wang ◽  
Christina Krucylak ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Tungsten Oxide ◽  
Oxygen Vacancies ◽  
Oxide Nanowires ◽  
Fluorogenic Probes

Role of oxygen vacancies in visible emission and transport properties of indium oxide nanowires

2011 ◽  
Vol 27 (1) ◽  
pp. 015015 ◽  
Author(s):  
Pradeep Gali ◽  
Fang-Ling Kuo ◽  
Nigel Shepherd ◽  
U Philipose
Keyword(s):  
Transport Properties ◽  
Indium Oxide ◽  
Oxygen Vacancies ◽  
Visible Emission ◽  
Oxide Nanowires

Optical and photocatalytic properties of a ZnO@C core/shell sphere with rich oxygen vacancies

CrystEngComm ◽  
2020 ◽  
Vol 22 (31) ◽  
pp. 5245-5254 ◽  
Author(s):  
Qian Zhang ◽  
Xiaoru Zhao ◽  
Libing Duan ◽  
Hao Shen ◽  
Ruidi Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancies ◽  
Hydrothermal Reaction ◽  
Photocatalytic Properties ◽  
Core Shell ◽  
Novel Method ◽  
Carbon Core

We develop a novel method to prepare an oxygen-deficient ZnO@C core/shell based on a traditional hydrothermal reaction, and investigate the role of the carbon core and oxygen vacancies in the photocatalytic activity and photoluminescence processes.

On the Role of Oxygen Vacancies in the Determination of the Gas-Sensing Properties of Tin-Oxide Nanowires

2006 ◽  
Vol 915 ◽  
Author(s):  
Roberto Mosca ◽  
Mingzheng Zha ◽  
Davide Calestani ◽  
Laura Lazzarini ◽  
Giancarlo Salviati ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Oxide Nanowires ◽  
Sensing Properties ◽  
Sno2 Nanowires ◽  
Gas Sensing Properties ◽  
First Results ◽  
Depth Study

AbstractSnO2 nanowires have been recently employed in the “gas-sensors” field and excellent results of conductometric and optical tests on SnO2 nanowires-based gas sensors have been reported.However, the mechanism that controls the gas-sensing effect in metal oxides nanowires is not fully understood yet. Here the authors present the first results of an in-depth study about the influence of post growth treatments on the physical and gas sensing properties of SnO2 nanowires.In particular, SnO2 nanowires grown by a vapour transport technique were annealed in a oxygen-rich atmosphere and then characterized by different techniques to assess the influence of the treatment on the nanowires properties.The annealing in oxygen atmosphere is shown to strongly affect the PL and CL spectra, the electrical resistivity as well as the gas sensing properties of the nanowires. The obtained results are consistent with a reduction of the oxygen vacancies concentration induced by the O2 treatment and seem to confirm the role of these defects in affecting the gas response of SnO2 nanowires-based sensors.

Molybdenum‐tungsten Oxide Nanowires Rich in Oxygen Vacancies as An Advanced Electrocatalyst for Hydrogen Evolution

2020 ◽  
Vol 15 (19) ◽  
pp. 2984-2991
Author(s):  
Xinxin Tang ◽  
Jianglin Liu ◽  
Ke Zhan ◽  
Hao Sun ◽  
Bin Zhao ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Hydrogen Evolution ◽  
Oxygen Vacancies ◽  
Oxide Nanowires

Multiscale probing of the influence of the defect-induced variation of oxygen vacancies on the photocatalytic activity of doped ZnO nanoparticles

2020 ◽  
Vol 8 (47) ◽  
pp. 25345-25354
Author(s):  
Young-Hoon Kim ◽  
Sunyang Kim ◽  
Ki-jeong Kim ◽  
Chaeyoung Kim ◽  
Jae Hyuck Jang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Significant Role ◽  
Zno Nanoparticles ◽  
Oxygen Vacancies ◽  
Local Charge ◽  
Doped Zno ◽  
Induced Variation ◽  
Charge States

Oxygen vacancies on the photocatalytic activity can alter the local charge states of neighboring cations. This work highlights multimodal and multiscale spectroscopic probing of the significant role of charge mismatch by the doped cation.

Pd-Doping-Induced Oxygen Vacancies in One-Dimensional Tungsten Oxide Nanowires for Enhanced Acetone Gas Sensing

2021 ◽  
Author(s):  
Ping Li ◽  
Ziwei Zhang ◽  
Zhihua Zhuang ◽  
Jinhan Guo ◽  
Zhongying Fang ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Oxide Nanowires ◽  
One Dimensional ◽  
Pd Doping

Ultrathin tungsten oxide nanowires: oleylamine assisted nonhydrolytic growth, oxygen vacancies and good photocatalytic properties

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 77423-77428 ◽  
Author(s):  
Fenglin Liu ◽  
Xianjie Chen ◽  
Qinghua Xia ◽  
Lihong Tian ◽  
Xiaobo Chen
Keyword(s):  
Tungsten Oxide ◽  
Oxygen Vacancies ◽  
Photocatalytic Properties ◽  
Oxide Nanowires

Ultrathin tungsten oxide nanowires with the diameter of around 1.1 nm have been fabricated through controlling the amount of oleylamine in a ​nonhydrolytic process.

The role of Sn in enhancing the visible-light photocatalytic activity of hollow hierarchical microspheres of the Bi/BiOBr heterojunction

2015 ◽  
Vol 17 (12) ◽  
pp. 8078-8086 ◽  
Author(s):  
Xingmiao Zhang ◽  
Guangbin Ji ◽  
Yousong Liu ◽  
Xuguang Zhou ◽  
Yan Zhu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Synergistic Effect ◽  
Charge Separation ◽  
Oxygen Vacancies ◽  
Separation Efficiency ◽  
Hierarchical Microspheres ◽  
Charge Separation Efficiency ◽  
Effect Of Oxygen ◽  
Visible Light Photocatalytic

The synergistic effect of oxygen vacancies and the Bi/BiOBr heterojunction broadens the light absorption range and promotes the charge separation efficiency.

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