Highly active Z-scheme WO3:Yb3+,Er3+/Ag/Ag3VO4/Ag photocatalyst with efficient charge transfer and light utilization for enhanced levofloxacin degradation with synchronous hydrogen evolution

2021 ◽  
pp. 118295
Author(s):  
Zhiyu Liu ◽  
Liang Chen ◽  
Congcong Piao ◽  
Jianhe Tang ◽  
Yu Liu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Highly Active ◽  
Light Utilization ◽  
Efficient Charge

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 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.

In-situ C–H activation-derived polymer@TiO2 p-n heterojunction for efficient photocatalytic hydrogen evolution

2021 ◽  
Author(s):  
Yu-Qin Xing ◽  
Zhi-Rong Tan ◽  
Jingzhao Cheng ◽  
Zhao-Qi Shen ◽  
Yujie Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Inorganic Semiconductors ◽  
Efficient Charge ◽  
Semiconductor Heterojunctions

Semiconductor heterojunctions benefiting from efficient charge transfer and separation have been widely used in photocatalysis. Herein, heterojunctions based on polymeric and inorganic semiconductors, namely PyOT@TiO2, have been successfully constructed via...

Efficient charge transfer at a homogeneously distributed (NH4)2Mo3S13/WSe2 heterojunction for solar hydrogen evolution

2019 ◽  
Vol 7 (17) ◽  
pp. 10769-10780 ◽  
Author(s):  
Farabi Bozheyev ◽  
Fanxing Xi ◽  
Paul Plate ◽  
Thomas Dittrich ◽  
Sebastian Fiechter ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Solar Hydrogen ◽  
Earth Abundant ◽  
Efficient Charge

Efficient charge transfer is achieved by coating WSe2 photocathodes with an earth abundant photocatalyst – ammonium thiomolybdate (NH4)2Mo3S13.

Three-Dimensional Carbonaceous Aerogels Embedded with Rh-SrTiO3 for Enhanced Hydrogen Evolution Triggered by Efficient Charge Transfer and Light Absorption

2020 ◽  
Vol 3 (12) ◽  
pp. 12134-12147
Author(s):  
Ashish Kumar ◽  
Vempuluru Navakoteswara Rao ◽  
Ajay Kumar ◽  
Aamir Mushtaq ◽  
Lalita Sharma ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Hydrogen Evolution ◽  
Light Absorption ◽  
Three Dimensional ◽  
Efficient Charge

High-performance hydrogen evolution at a MoSe2–Mo2C seamless heterojunction enabled by efficient charge transfer

2020 ◽  
Vol 8 (14) ◽  
pp. 6692-6698 ◽  
Author(s):  
Jing Li ◽  
Wenting Hong ◽  
Chuanyong Jian ◽  
Qian Cai ◽  
Xu He ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Dft Calculations ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Large Surface Area ◽  
Efficient Charge ◽  
Enhanced Conductivity

The heterojunction of Mo2C/MoSe2 with enhanced conductivity and large surface area is contributed to an efficient HER process. DFT calculations prove that there are MIGS in the interface between Mo2C and MoSe2, facilitating charge transfer for HER.

Sign in / Sign up

Export Citation Format

Share Document