Boosting photocatalytic H2 evolution on g-C3N4 by modifying covalent organic frameworks (COFs)

2019 ◽  
Vol 55 (41) ◽  
pp. 5829-5832 ◽  
Author(s):  
Maolan Luo ◽  
Qing Yang ◽  
Kewei Liu ◽  
Hongmei Cao ◽  
Hongjian Yan

Modifying g-C3N4 with covalent organic frameworks (COFs) through imine linkage results in a dramatically enhanced visible-light-driven photocatalytic hydrogen evolution, which reached 10.1 mmol g−1 h−1 when 2 wt% Pt and triethanolamine were used as co-catalyst and sacrificial agent, respectively, corresponding to an apparent quantum efficiency (AQE) of 20.7% at 425 nm.

2020 ◽  
Vol 4 (4) ◽  
pp. 1822-1827
Author(s):  
Yi-Hao Chew ◽  
Boon-Junn Ng ◽  
Xin Ying Kong ◽  
Lutfi Kurnianditia Putri ◽  
Jie-Yinn Tang ◽  
...  

The synergy of integrating homojunction and heterojunction structures in one composite was demonstrated by combining CoP and ZB/WZ homojunction-containing Zn0.5Cd0.5S which showed a 20-times enhancement in photocatalytic H2 evolution activity.


2017 ◽  
Vol 5 (18) ◽  
pp. 8451-8460 ◽  
Author(s):  
Jinge Wang ◽  
Yajie Chen ◽  
Wei Zhou ◽  
Guohui Tian ◽  
Yuting Xiao ◽  
...  

Cubic quantum dot/hexagonal microsphere ZnIn2S4 heterophase junctions were prepared and exhibited significantly higher visible-light photocatalytic hydrogen evolution performance than single cubic or hexagonal ZnIn2S4.


2019 ◽  
Vol 55 (56) ◽  
pp. 8090-8093 ◽  
Author(s):  
Kangyi Kong ◽  
Shicong Zhang ◽  
Yanmeng Chu ◽  
Yue Hu ◽  
Fengtao Yu ◽  
...  

In this paper, a supramolecular system (P-PMPDI) has been successfully developed for highly efficient photocatalytic hydrogen evolution. P-PMPDI showed a superior hydrogen evolution reaction rate of 11.7 mmol g−1 h−1 and a recorded AQY of 2.96% at 550 nm.


2021 ◽  
Author(s):  
Yongshan Ma ◽  
Jingcheng Cui ◽  
Mengmeng Yin ◽  
Xuemei Li ◽  
Tianyi Jiang ◽  
...  

Exploiting an efficient and cheap catalyst for elimination of organic contaminant from wastewater and photocatalytic hydrogen evolution has drawn great attentions recently. Herein, MoS2 nanoflowers (MoS2 NFs) and 1- phenol...


2021 ◽  
Author(s):  
Luqiu Li ◽  
Dongguang Yin ◽  
Xiandi Guo

Covalent organic frameworks (COFs) representing an emerging class of porous crystalline material have shown promising visible-light-driven hydrogen evolution activity. However, they have a high recombination ratio of charge carriers and...


2018 ◽  
Vol 47 (32) ◽  
pp. 10857-10860 ◽  
Author(s):  
Tian Wen ◽  
Lei Zhang ◽  
Wolfgang Schmitt

A Mn cluster-based polymer has been applied as a noble-metal-free co-catalyst of CdS, showing enhanced photocatalytic H2-production activity under visible light.


2019 ◽  
Vol 7 (19) ◽  
pp. 11928-11933 ◽  
Author(s):  
Changqing Li ◽  
Hui Xu ◽  
Junkuo Gao ◽  
Wenna Du ◽  
Liqing Shangguan ◽  
...  

A new approach for the synthesis of infinite Ti–O rod-based MOFs with superior photocatalytic H2 evolution performances was developed.


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