Incorporating Heteroatoms into Fluorene-type Conjugated Polymers for Enhanced Photocatalytic Hydrogen Production

2019 ◽  
Author(s):  
Yang Bai ◽  
Duncan J. Woods ◽  
Liam Wilbraham ◽  
Catherine Aitchison ◽  
Martijn Zwijnenburg ◽  
...  
Keyword(s):  
Particle Size ◽  
Hydrogen Production ◽  
Conjugated Polymers ◽  
Light Absorption ◽  
Driving Force ◽  
Photocatalytic Performance ◽  
Photocatalytic Hydrogen Production ◽  
Hole Scavenger ◽  
Thermodynamic Driving Force

The photocatalytic performance of fluorene-type polymer photocatalysts for hydrogen production from water in the presence of a sacrificial hole scavenger is significantly improved by the incorporation of heteroatoms into the bridge-head. This improvement can be explained by a combination of factors, such as changes in thermodynamic driving-force, particle size, dispersibility under photocatalytic conditions, and light absorption.

scholarly journals Incorporating Heteroatoms into Fluorene-type Conjugated Polymers for Enhanced Photocatalytic Hydrogen Production

2019 ◽  
Author(s):  
Yang Bai ◽  
Duncan J. Woods ◽  
Liam Wilbraham ◽  
Catherine Aitchison ◽  
Martijn Zwijnenburg ◽  
...  
Keyword(s):  
Particle Size ◽  
Hydrogen Production ◽  
Conjugated Polymers ◽  
Light Absorption ◽  
Driving Force ◽  
Photocatalytic Performance ◽  
Photocatalytic Hydrogen Production ◽  
Hole Scavenger ◽  
Thermodynamic Driving Force

The photocatalytic performance of fluorene-type polymer photocatalysts for hydrogen production from water in the presence of a sacrificial hole scavenger is significantly improved by the incorporation of heteroatoms into the bridge-head. This improvement can be explained by a combination of factors, such as changes in thermodynamic driving-force, particle size, dispersibility under photocatalytic conditions, and light absorption.

scholarly journals Incorporating Heteroatoms into Fluorene-type Conjugated Polymers for Enhanced Photocatalytic Hydrogen Production

2019 ◽  
Author(s):  
Yang Bai ◽  
Duncan J. Woods ◽  
Liam Wilbraham ◽  
Catherine Aitchison ◽  
Martijn Zwijnenburg ◽  
...  
Keyword(s):  
Particle Size ◽  
Hydrogen Production ◽  
Conjugated Polymers ◽  
Light Absorption ◽  
Driving Force ◽  
Photocatalytic Performance ◽  
Photocatalytic Hydrogen Production ◽  
Hole Scavenger ◽  
Thermodynamic Driving Force

The photocatalytic performance of fluorene-type polymer photocatalysts for hydrogen production from water in the presence of a sacrificial hole scavenger is significantly improved by the incorporation of heteroatoms into the bridge-head. This improvement can be explained by a combination of factors, such as changes in thermodynamic driving-force, particle size, dispersibility under photocatalytic conditions, and light absorption.

scholarly journals Development of Visible-Light-Driven Rh–TiO2–CeO2 Hybrid Photocatalysts for Hydrogen Production

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 848
Author(s):  
Jong-Wook Hong
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Light Absorption ◽  
Photocatalytic Performance ◽  
Environmental Issues ◽  
Absorption Efficiency ◽  
Low Light ◽  
Practical Applications ◽  
Visible Light Driven ◽  
Poor Stability

Visible-light-driven hydrogen production through photocatalysis has attracted enormous interest owing to its great potential to address energy and environmental issues. However, photocatalysis possesses several limitations to overcome for practical applications, such as low light absorption efficiency, rapid charge recombination, and poor stability of photocatalysts. Here, the preparation of efficient noble metal–semiconductor hybrid photocatalysts for photocatalytic hydrogen production is presented. The prepared ternary Rh–TiO2–CeO2 hybrid photocatalysts exhibited excellent photocatalytic performance toward the hydrogen production reaction compared with their counterparts, ascribed to the synergistic combination of Rh, TiO2, and CeO2.

Balancing electron transfer rate and driving force for efficient photocatalytic hydrogen production in CdSe/CdS nanorod–[NiFe] hydrogenase assemblies

2017 ◽  
Vol 10 (10) ◽  
pp. 2245-2255 ◽  
Author(s):  
Bryant Chica ◽  
Chang-Hao Wu ◽  
Yuhgene Liu ◽  
Michael W. W. Adams ◽  
Tianquan Lian ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hydrogen Production ◽  
Driving Force ◽  
Transfer Rate ◽  
Pyrococcus Furiosus ◽  
Electron Transfer Rate ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic System

We describe a hybrid photocatalytic system for hydrogen production consisting of nanocrystalline CdSe/CdS dot-in-rod (DIR) structures coupled to [NiFe] soluble hydrogenase I (SHI) fromPyrococcus furiosus.

scholarly journals Carbon Self-Doped Carbon Nitride Nanosheets with Enhanced Visible-Light Photocatalytic Hydrogen Production

Catalysts ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 366 ◽  
Author(s):  
Hongwei Wang ◽  
Guiqing Huang ◽  
Zhiwei Chen ◽  
Weibing Li
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Transfer Rate ◽  
Carbon Nitride ◽  
Photocatalytic Performance ◽  
Photocatalytic Hydrogen Production ◽  
Feasible Method ◽  
Carrier Transfer ◽  
Carbon Nitride Nanosheets ◽  
Visible Light Photocatalytic

In this study, we prepared carbon self-doped carbon nitride nanosheets through a glucose synergic co-condensation method. In the carbon self-doped structure, the N atoms in the triazine rings were substituted by C atoms, resulting in enhanced visible-light photocatalytic hydrogen production, which is three-times higher than that of bulk carbon nitride. The enhanced photocatalytic hydrogen production was attributed to the higher charge-carrier transfer rate and widened light absorption range of the carbon nitride nanosheets after carbon self-doping. Thus, this work highlights the importance of carbon self-doping for improving the photocatalytic performance. Meanwhile, it provides a feasible method for the preparation of carbon self-doped carbon nitride without destroying the 2D conjugated backbone structures.

scholarly journals Emulsion polymerization derived organic photocatalysts for improved light-driven hydrogen evolution

2019 ◽  
Vol 7 (6) ◽  
pp. 2490-2496 ◽  
Author(s):  
Catherine M. Aitchison ◽  
Reiner Sebastian Sprick ◽  
Andrew I. Cooper
Keyword(s):  
Hydrogen Production ◽  
Conjugated Polymers ◽  
Emulsion Polymerization ◽  
Hydrogen Evolution ◽  
Small Particle ◽  
Photocatalytic Hydrogen Production ◽  
Highly Efficient

Here, we present the use of mini-emulsion polymerization to generate small particle analogues of three insoluble conjugated polymers for highly efficient photocatalytic hydrogen production.

Construction of Z-scheme carbon nanodots/WO3 with highly enhanced photocatalytic hydrogen production

2015 ◽  
Vol 3 (16) ◽  
pp. 8256-8259 ◽  
Author(s):  
Pengju Yang ◽  
Jianghong Zhao ◽  
Jian Wang ◽  
Baoyue Cao ◽  
Li Li ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Photocatalytic Performance ◽  
Carbon Nanodots ◽  
Effective Strategy ◽  
Photocatalytic Hydrogen Production

Z-scheme is a very effective strategy to improve the photocatalytic performance of CNDs.

Effect of Rh valence state and doping concentration on the structure and photocatalytic H2 evolution in (Nb,Rh) codoped TiO2 nanorods

Nanoscale ◽  
2020 ◽  
Vol 12 (43) ◽  
pp. 22082-22090
Author(s):  
Jiquan Huang ◽  
Ting Lv ◽  
Qiufeng Huang ◽  
Zhonghua Deng ◽  
Jian Chen ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Light Absorption ◽  
Valence State ◽  
Doping Concentration ◽  
Photocatalytic Performance ◽  
Tio2 Nanorods ◽  
H2 Evolution ◽  
Visible Light Absorption ◽  
Photocatalytic H2 Evolution

(Nb,Rh) codoped TiO2 nanorods exhibit strong visible light absorption and efficient photocatalytic performance for hydrogen production.

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