Construction of high-efficiency CoS@Nb2O5 heterojunctions accelerating charge transfer for boosting photocatalytic hydrogen evolution

2022 ◽  
Author(s):  
Xin Ren ◽  
Jianyou Shi ◽  
Ruihuan Duan ◽  
Jun Di ◽  
Chao Xue ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
High Efficiency ◽  
Photocatalytic Hydrogen Evolution

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.

Mesoporous g-C3N4 nanosheets prepared by calcining a novel supramolecular precursor for high-efficiency photocatalytic hydrogen evolution

2018 ◽  
Vol 450 ◽  
pp. 46-56 ◽  
Author(s):  
Qiong Liu ◽  
Xueli Wang ◽  
Qian Yang ◽  
Zhengguo Zhang ◽  
Xiaoming Fang
Keyword(s):  
Hydrogen Evolution ◽  
High Efficiency ◽  
Photocatalytic Hydrogen Evolution

Molecular Engineering of Fully Conjugated sp 2 Carbon‐Linked Polymers for High‐Efficiency Photocatalytic Hydrogen Evolution

ChemSusChem ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 672-676 ◽  
Author(s):  
Tao Huang ◽  
Xi Lin ◽  
Yang Liu ◽  
Jiwu Zhao ◽  
Huan Lin ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
High Efficiency ◽  
Molecular Engineering ◽  
Photocatalytic Hydrogen Evolution

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.

Sign in / Sign up

Export Citation Format

Share Document