scholarly journals Panchromatic Ternary Polymer Dots Involving Sub-Picosecond Energy and Charge Transfer for Efficient and Stable Photocatalytic Hydrogen Evolution

2021 ◽  
Vol 143 (7) ◽  
pp. 2875-2885
Author(s):  
Aijie Liu ◽  
Lars Gedda ◽  
Martin Axelsson ◽  
Mariia Pavliuk ◽  
Katarina Edwards ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Polymer Dots ◽  
Ternary Polymer

Enhanced charge separation and photocatalytic hydrogen evolution in carbonized-polymer-dot-coupled lead halide perovskites

2020 ◽  
Vol 7 (10) ◽  
pp. 2719-2725 ◽  
Author(s):  
Yue Zhao ◽  
Qingsen Zeng ◽  
Yue Yu ◽  
Tanglue Feng ◽  
Yajie Zhao ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Charge Separation ◽  
Photocatalytic Performance ◽  
Metal Halide ◽  
Photocatalytic Hydrogen Evolution ◽  
Polymer Dots ◽  
Halide Perovskites ◽  
Lead Halide

This work demonstrates that carbonized polymer dots (CPDs) can efficiently promote the charge separation and photocatalytic performance of metal halide perovskites, highlighting their excellent charge-transfer ability and great potential in developing efficient perovskite-based hybrid photocatalysts.

scholarly journals Conjugated Polymer Donor-Molecular Acceptor Nanohybrids for Photocatalytic Hydrogen Evolution

2019 ◽  
Author(s):  
Haofan Yang ◽  
Xiaobo Li ◽  
Reiner Sebastian Sprick ◽  
Andrew I. Cooper
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Conjugated Polymer ◽  
Apparent Quantum Yield ◽  
High Hydrogen ◽  
Photocatalytic Hydrogen Evolution ◽  
Efficient Charge ◽  
Donor Acceptor

A library of 237 organic binary/ternary nanohybrids consisting of conjugated polymers donors and both fullerene and non-fullerene molecular acceptors was prepared and screened for sacrificial photocatalytic hydrogen evolution. These donor-acceptor nanohybrids (DANHs) showed significantly enhanced hydrogen evolution rates compared with the parent donor or acceptor compounds. DANHs of <a></a><a>a polycarbazole</a>-based donor combined with a methanofullerene acceptor (PCDTBT/PC<sub>60</sub>BM) showed a high hydrogen evolution rate of 105.2 mmol g<sup>-1</sup> h<sup>-1</sup> under visible light (λ > 420 nm). This DANH photocatalyst produced 5.9 times more hydrogen than a sulfone-containing polymer (P10) under the same conditions, which is one of the most efficient organic photocatalysts reported so far. An apparent quantum yield of hydrogen evolution of 3.0 % at 595 nm was measured for this DANH. The photocatalytic activity of the DANHs, which in optimized cases reached 179.0 mmol g<sup>-1</sup> h<sup>-1</sup>, is attributed to efficient charge transfer at the polymer donor/molecular acceptor interface. We also show that ternary donor<sub>A</sub>-donor<sub>B</sub>-acceptor nanohybrids can give higher activities than binary donor-acceptor hybrids in some cases.

scholarly journals Hollow polymer dots: nature-mimicking architecture for efficient photocatalytic hydrogen evolution reaction

2019 ◽  
Vol 7 (9) ◽  
pp. 4797-4803 ◽  
Author(s):  
Aijie Liu ◽  
Cheuk-Wai Tai ◽  
Kateřina Holá ◽  
Haining Tian
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Photocatalytic Hydrogen Evolution ◽  
Polymer Dots

Mimicking nature is always beneficial for improving the performance of artificial systems.

A hybrid of CdS/HCa2Nb3O10 ultrathin nanosheets for promoting photocatalytic hydrogen evolution

2017 ◽  
Vol 46 (40) ◽  
pp. 13935-13942 ◽  
Author(s):  
Jinhua Xiong ◽  
Kaiqiang Jing ◽  
Junhua Zou ◽  
Shijing Liang ◽  
Ling Wu
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Interfacial Charge Transfer ◽  
Photocatalytic Hydrogen Evolution ◽  
Ultrathin Nanosheets ◽  
Interfacial Charge

A hybrid of CdS/HCa2Nb3O10 ultrathin nanosheets with a tough heterointerface was successfully fabricated. Efficient interfacial charge transfer from CdS to HCa2Nb3O10 nanosheets was achieved to realize the enhanced photocatalytic H2 evolution activity.

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