Boosting Visible‐Light Photocatalytic Performance for CO 2 Reduction via Hydroxylated Graphene Quantum Dots Sensitized MIL‐101(Fe)

2020 ◽  
Vol 7 (17) ◽  
pp. 2000468
Author(s):  
Ning Liu ◽  
Mengqi Tang ◽  
Jinxing Wu ◽  
Liang Tang ◽  
Wenyuan Huang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Graphene Quantum Dots ◽  
Visible Light Photocatalytic

Quantum dots in photocatalytic applications: efficiently enhancing visible light photocatalytic activity by integrating CdO quantum dots as sensitizers

2017 ◽  
Vol 19 (36) ◽  
pp. 24915-24927 ◽  
Author(s):  
A. H. Reshak
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Optical Band Gap ◽  
Visible Light Active ◽  
Photocatalytic Applications ◽  
Visible Light Photocatalytic

The amalgamation of a wide optical band gap photocatalyst with visible-light-active CdO quantum dots (QDs) as sensitizers is one of the most efficient ways to improve photocatalytic performance under visible light irradiation.

scholarly journals Visible-Light Driven TiO2 Photocatalyst Coated with Graphene Quantum Dots of Tunable Nitrogen Doping

Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 344 ◽  
Author(s):  
Xiong Sun ◽  
Hui-Jun Li ◽  
Nanquan Ou ◽  
Bowen Lyu ◽  
Bojie Gui ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Absorption ◽  
Photocatalytic Performance ◽  
Light Emission ◽  
Graphene Quantum Dots ◽  
Visible Light Absorption ◽  
Visible Light Driven ◽  
Nitrogen Doped Graphene

Nitrogen doped graphene quantum dots (NGQDs) were successfully prepared via a hydrothermal method using citric acid and urea as the carbon and nitrogen precursors, respectively. Due to different post-treatment processes, the obtained NGQDs with different surface modifications exhibited blue light emission, while their visible-light absorption was obviously different. To further understand the roles of nitrogen dopants and N-containing surface groups of NGQDs in the photocatalytic performance, their corresponding composites with TiO2 were utilized to degrade RhB solutions under visible-light irradiation. A series of characterization and photocatalytic performance tests were carried out, which demonstrated that NGQDs play a significant role in enhancing visible-light driven photocatalytic activity and the carrier separation process. The enhanced photocatalytic activity of the NGQDs/TiO2 composites can possibly be attributed to an enhanced visible light absorption ability, and an improved separation and transfer rate of photogenerated carriers.

Engineering the Z-system hybrids of 0D/2D F-TiO2 quantum dots/g-C3N4 heterostructure through chemical bonds with enhanced visible-light photocatalytic performance

2021 ◽  
Author(s):  
Jian Wang ◽  
wei lin ◽  
Hao Hu ◽  
Chunxia Liu ◽  
Qiong Cai ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Charge Transfer ◽  
Visible Light ◽  
Effective Charge ◽  
Photocatalytic Performance ◽  
Chemical Bonds ◽  
Promising Strategy ◽  
Interfacial Charge ◽  
Visible Light Photocatalytic ◽  
Effective Charge Transfer

Constructing a direct Z-Scheme system for the photocatalysts is a promising strategy to enhance photocatalytic redox performance owing to its effective charge transfer; however, building a reasonable interfacial charge transfer...

Carbon quantum dots decorated Bi4O5I2 with greatly improved visible-light photocatalytic performance

2021 ◽  
Vol 230 ◽  
pp. 411-418
Author(s):  
Xu Yan ◽  
Long Pan ◽  
Yanli Mao ◽  
Haiyan Kang ◽  
Zhongxian Song ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Carbon Quantum Dots ◽  
Visible Light Photocatalytic
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