Steering photo-excitons towards active sites: Intensified substrates affinity and spatial charge separation for photocatalytic molecular oxygen activation and pollutant removal

2020 ◽  
pp. 127334
Author(s):  
Hanbo Yu ◽  
Jinhui Huang ◽  
Longbo Jiang ◽  
Xingzhong Yuan ◽  
Kaixin Yi ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Charge Separation ◽  
Active Sites ◽  
Oxygen Activation ◽  
Pollutant Removal ◽  
Spatial Charge

Efficient spatial charge separation in unique 2D tandem heterojunction CdxZn1−xIn2S4–CdS–MoS2 rendering highly-promoted visible-light-induced H2 generation

2021 ◽  
Vol 9 (1) ◽  
pp. 482-491
Author(s):  
Jiakun Wu ◽  
Bowen Sun ◽  
Hui Wang ◽  
Yanyan Li ◽  
Ying Zuo ◽  
...  
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
Effective Charge ◽  
Active Sites ◽  
H2 Generation ◽  
Highly Efficient ◽  
Spatial Charge

Unique 2D heterostructures CdxZn1−xIn2S4–CdS–MoS2 with effective charge separation, excellent light-harvest, and abundant active sites are highly-efficient for photocatalytic H2 evolution.

Macroscopic Polarization Enhancement Promoting Photo- and Piezoelectric-Induced Charge Separation and Molecular Oxygen Activation

2017 ◽  
Vol 56 (39) ◽  
pp. 11860-11864 ◽  
Author(s):  
Hongwei Huang ◽  
Shuchen Tu ◽  
Chao Zeng ◽  
Tierui Zhang ◽  
Ali H. Reshak ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Charge Separation ◽  
Oxygen Activation ◽  
Induced Charge ◽  
Macroscopic Polarization

Sustainable molecular oxygen activation with oxygen vacancies on the {001} facets of BiOCl nanosheets under solar light

Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14168-14173 ◽  
Author(s):  
Hao Li ◽  
Jingu Shi ◽  
Kun Zhao ◽  
Lizhi Zhang
Keyword(s):  
Molecular Oxygen ◽  
Oxygen Vacancies ◽  
Organic Pollutant ◽  
Oxygen Activation ◽  
Pollutant Removal ◽  
Solar Light

Oxygen vacancies on the {001} facets of BiOCl can sustainably activate molecular oxygen for organic pollutant removal under solar light.

scholarly journals Adjacent single-atom irons boosting molecular oxygen activation on MnO2

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Huayu Gu ◽  
Xiao Liu ◽  
Xiufan Liu ◽  
Cancan Ling ◽  
Kai Wei ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Transition Metal Oxides ◽  
Active Sites ◽  
Oxygen Activation ◽  
Single Atom ◽  
Intermediate Species ◽  
Surface Oxygen Vacancy ◽  
Activation Mechanisms ◽  
Active Intermediate ◽  
Fe Sites

AbstractEfficient molecular oxygen activation is crucial for catalytic oxidation reaction, but highly depends on the construction of active sites. In this study, we demonstrate that dual adjacent Fe atoms anchored on MnO2 can assemble into a diatomic site, also called as MnO2-hosted Fe dimer, which activates molecular oxygen to form an active intermediate species Fe(O = O)Fe for highly efficient CO oxidation. These adjacent single-atom Fe sites exhibit a stronger O2 activation performance than the conventional surface oxygen vacancy activation sites. This work sheds light on molecular oxygen activation mechanisms of transition metal oxides and provides an efficient pathway to activate molecular oxygen by constructing new active sites through single atom technology.

Macroscopic Polarization Enhancement Promoting Photo- and Piezoelectric-Induced Charge Separation and Molecular Oxygen Activation

2017 ◽  
Vol 129 (39) ◽  
pp. 12022-12026 ◽  
Author(s):  
Hongwei Huang ◽  
Shuchen Tu ◽  
Chao Zeng ◽  
Tierui Zhang ◽  
Ali H. Reshak ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Charge Separation ◽  
Oxygen Activation ◽  
Induced Charge ◽  
Macroscopic Polarization

Giant Electron–Hole Interactions in Confined Layered Structures for Molecular Oxygen Activation

2017 ◽  
Vol 139 (13) ◽  
pp. 4737-4742 ◽  
Author(s):  
Hui Wang ◽  
Shichuan Chen ◽  
Dingyu Yong ◽  
Xiaodong Zhang ◽  
Shuang Li ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Oxygen Activation ◽  
Layered Structures ◽  
Electron Hole
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