The synergistic effect of graphitic N and pyrrolic N for the enhanced photocatalytic performance of nitrogen-doped graphene/TiO2 nanocomposites

2016 ◽  
Vol 181 ◽  
pp. 810-817 ◽  
Author(s):  
Ying Xu ◽  
Yanping Mo ◽  
Jing Tian ◽  
Ping Wang ◽  
Huogen Yu ◽  
...  
Catalysts ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 438 ◽  
Author(s):  
Fei Li ◽  
Ming Li ◽  
Yi Luo ◽  
Ming Li ◽  
Xinyu Li ◽  
...  

In this study, nitrogen-doped graphene quantum dots (N-GQDs) and a TiO2 nanocomposite were synthesized using a simple hydrothermal route. Ammonia water was used as a nitrogen source to prepare the N-GQDs. When optically characterized by UV-vis, N-GQDs reveal stronger absorption peaks in the range of ultraviolet (UV) light than graphene quantum dots (GQDs). In comparison with GQDs/TiO2 and pure TiO2, the N-GQDs/TiO2 have significantly improved photocatalytic performance. In particular, it was found that, when the added amount of ammonia water was 50 mL, the content of pyridinic N and graphitic N were as high as 22.47% and 31.44%, respectively. Most important, the photocatalytic activity of N-GQDs/TiO2-50 was about 95% after 12 min. The results illustrated that pyridinic N and graphitic N play a significant role in photocatalytic performance.


2018 ◽  
Vol 42 (11) ◽  
pp. 8914-8923 ◽  
Author(s):  
Baihong An ◽  
Yanan Liu ◽  
Chengcheng Xu ◽  
Han Wang ◽  
Jun Wan

Visible light responsive Fe3O4–WSe2/NG (nitrogen doped graphene oxide) heterojunction nanocomposites were synthesized by a hydrothermal synthesis route, in which Fe3O4 and WSe2 particles were coated on the surface of NG.


2013 ◽  
Vol 34 (11) ◽  
pp. 2138-2145 ◽  
Author(s):  
Qian Mi ◽  
Daiquan Chen ◽  
Juncheng Hu ◽  
Zhengxi Huang ◽  
Jinlin Li

2017 ◽  
Vol 53 (72) ◽  
pp. 9967-9970 ◽  
Author(s):  
Dan Guo ◽  
Rong-Bin Song ◽  
Hao-Hua Shao ◽  
Jian-Rong Zhang ◽  
Jun-Jie Zhu

A high performance visible-light-assisted MFC was successfully fabricated based on the synergistic effect between a novel 3D NG-SS anode and a visible-light responsive CuS photocathode.


RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 48357-48364 ◽  
Author(s):  
Yuan Li ◽  
Denghui Pan ◽  
Mingmei Zhang ◽  
Jimin Xie ◽  
Zaoxue Yan

Co3O4embedded in nitrogen-doped graphene (Co3O4/N-G-750) is prepared by a two-step synthetic method: polyol microwave heating method and vacuum tube calcination method.


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