Graphitic carbon nitride (g-C3N4) as a metal-free catalyst for thermal decomposition of ammonium perchlorate

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24507-24512 ◽  
Author(s):  
Qi Li ◽  
Yi He ◽  
Rufang Peng

g-C3N4 possesses a band gap of approximately 2.7 eV. The conduction-band electrons (ecb−) and valence band holes (h+) could be generated when g-C3N4 was excited, which accelerate the thermal decomposition of ammonium perchlorate (AP).

RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7558-7568 ◽  
Author(s):  
Hailong Dou ◽  
Shaohui Zheng ◽  
Yongping Zhang

The photoinduced electrons jump more easily to the conduction band of g-C3N4 for the Fe impurity band locates above the valence band acting a bridge for electron transfer.


2015 ◽  
Vol 39 (11) ◽  
pp. 8703-8707 ◽  
Author(s):  
Qi Li ◽  
Yi He ◽  
Rufang Peng

SnO2NPs/g-C3N4 hybrids can effectively catalyze NH4ClO4 molecules by the aid of a synergistic reaction of SnO2.


2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Azami M. S. ◽  
Jalil A. A ◽  
Hitam C. N. C. ◽  
Mamat C. R ◽  
Siang T. J. ◽  
...  

Titanium dioxide (TiO2) has drawn widespread interest by researchers as a precious semiconductor that is responsive towards photodegradation of various pollutants. This catalyst has its own limitations such as fast electron-hole recombination, wide band gap, and can only be utilised under ultraviolet (UV) region. In order to overcome these problems, the addition of a metal-free dopant is a common practice to prevent electron-hole recombination and enhance photodegradation under visible light. Among various types of metal-free catalysts, carbon nitride material has received much attention due to its numerous benefits such as good in terms of physical and chemical strength, as well as an attractive electronic band combined with a band gap (2.7 eV). This review summarised recent works in the development of titania incorporated with graphitic carbon nitride (g-C3N4) for enhanced photocatalytic activity.


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