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.

Sunlight-driven enhanced photocatalytic activity of bandgap narrowing Sn-doped ZnO nanoparticles

2021 ◽  
Author(s):  
Nachimuthu Venkatesh ◽  
Santhan Aravindan ◽  
Karuppathevan Ramki ◽  
Govindhasamy Murugadoss ◽  
Rangasamy Thangamuthu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Zno Nanoparticles ◽  
Bandgap Narrowing ◽  
Doped Zno

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.

scholarly journals Visible-light photocatalysis on C-doped ZnO derived from polymer-assisted pyrolysis

RSC Advances ◽  
2015 ◽  
Vol 5 (35) ◽  
pp. 27690-27698 ◽  
Author(s):  
Ahmad S. Alshammari ◽  
Lina Chi ◽  
Xiaoping Chen ◽  
Abdulaziz Bagabas ◽  
Denis Kramer ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Absorption ◽  
Oxygen Vacancies ◽  
Charge Carriers ◽  
Visible Light Photocatalysis ◽  
Visible Light Absorption ◽  
C Doping ◽  
Doped Zno

Heavy C-doping can effectively enhance visible-light absorption yet exhibited lower visible-light-responsive photocatalytic activity due to significant recombination of photogenerated charge carriers caused by C-dopant and oxygen vacancies.

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