A Mini-Review on Nanostructured g-C3N4 Photocatalysts for Solar Fuel Production

Author(s):  
Maxwell Selase Akple ◽  
Gabriel Kwame Sipi Takyi

Graphitic carbon nitride (g-C3N4) is an important photocatalytic material that receives a lot of research attention globally. This is because of its favourable thermal and chemical stability as well as electronic band structure. However, the photocatalytic performance of the bulk g-C3N4 is limited by fast recombination of electron-hole pair and poor visible light-harvesting ability. Thus, different strategies, such as heterostructuring, nanotuning, doping, etc., have been adopted to overcome the aforementioned challenges to enhance the photocatalytic performance of g-C3N4. In recent times, various nanostructured g-C3N4 photocatalytic materials with various tuned morphologies have been designed and fabricated in literature for different photocatalytic activities. This mini-review summarized the progress development of nanostructured g-C3N4 photocatalysts with various tuned morphologies for solar fuel generation. The article briefly highlights the research status of various g-C3N4 with tuned morphologies and enhanced solar fuel generation abilities. Finally, a conclusion and future research were also suggested, opening up new areas on g-C3N4 photocatalysis.

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Gui-Fang Huang ◽  
Zhi-Li Ma ◽  
Wei-Qing Huang ◽  
Yong Tian ◽  
Chao Jiao ◽  
...  

Ag3PO4as a photocatalyst has attracted enormous attention in recent years due to its great potential in harvesting solar energy for environmental purification and fuel production. The photocatalytic performance of Ag3PO4strongly depends on its morphology, exposed facets, and particle size. The effects of morphology and orientation of Ag3PO4on the catalytic performance and the efforts on the stability improvement of Ag3PO4are reviewed here. This paper also discusses the current theoretical understanding of photocatalytic mechanism of Ag3PO4, together with the recent progress towards developing Ag3PO4composite photocatalysts. The crucial issues that should be addressed in future research activities are finally highlighted.


2020 ◽  
Vol 92 (12) ◽  
pp. 1953-1969
Author(s):  
Yisong Zhu ◽  
Zhenjun Wu ◽  
Xiuqiang Xie ◽  
Nan Zhang

AbstractMXene with two-dimensional layered structure and desirable electronic properties has emerged as a promising candidate to construct MXene-based composites towards various photocatalytic applications. As compared to the downhill-type photodegradation reactions, artificial photosynthesis often involves thermodynamic uphill reactions with a large positive change in Gibbs free energy. Recent years have witnessed the effectiveness of MXene in enhancing the photoactivity of MXene-based composites for solar fuel synthesis. In this review, we mainly focus on the applications of MXene-based composites for photocatalytic solar fuel production. We will start from summarizing the general synthesis of MXene-based composite photocatalysts. Then the recent progress on MXene-based composite photocatalysts for solar fuel synthesis, including water splitting for H2 production, CO2 reduction to solar fuels, and N2 fixation for NH3 synthesis is elucidated. The roles of MXene playing in improving the photoactivity of MXene-based composites in these applications have also been discussed. In the last section, perspectives on the future research directions of MXene-based composites towards the applications of artificial photosynthesis are presented.


RSC Advances ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 42-52
Author(s):  
M. Munawar ◽  
M. Idrees ◽  
Iftikhar Ahmad ◽  
H. U. Din ◽  
B. Amin

Using density functional theory calculations, we have investigated the electronic band structure, optical and photocatalytic response of BSe, M2CO2 (M = Ti, Zr, Hf) monolayers and their corresponding BSe–M2CO2 (M = Ti, Zr, Hf) van der Waals heterostructures.


CrystEngComm ◽  
2017 ◽  
Vol 19 (29) ◽  
pp. 4118-4125 ◽  
Author(s):  
J. G. Santaclara ◽  
F. Kapteijn ◽  
J. Gascon ◽  
M. A. van der Veen

The fascinating chemical and physical properties of MOFs have recently stimulated exploration of their application for photocatalysis. Design guidelines for these materials in photocatalytic solar fuel generation can be developed by applying the right spectroscopic tools.


2014 ◽  
Vol 2 (20) ◽  
pp. 7389-7401 ◽  
Author(s):  
Angel T. Garcia-Esparza ◽  
Kevin Limkrailassiri ◽  
Frederic Leroy ◽  
Shahid Rasul ◽  
Weili Yu ◽  
...  

A thorough characterization of thermally obtained Cu(i)/Cu(ii) oxide (photo)electrodes has been conducted for applications of solar fuel generation.


2020 ◽  
Vol 22 (27) ◽  
pp. 15354-15364 ◽  
Author(s):  
Mohammed M. Obeid ◽  
C. Stampfl ◽  
A. Bafekry ◽  
Z. Guan ◽  
H. R. Jappor ◽  
...  

Nonmetal doping is an effective approach to modify the electronic band structure and enhance the photocatalytic performance of bismuth oxyhalides.


RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101105-101114 ◽  
Author(s):  
H. Ait Ahsaine ◽  
A. El jaouhari ◽  
A. Slassi ◽  
M. Ezahri ◽  
A. Benlhachemi ◽  
...  

BWO and Lu-BWO were synthesized by coprecipitation method. Lu-BWO sample exhibits the highest visible-light-responsive photocatalytic performance for the degradation of MB. h+ and ˙O2− are the main active species in the photocatalytic degradation.


Nanoscale ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 4515-4522 ◽  
Author(s):  
Fangyan Wei ◽  
Yang Liu ◽  
Heng Zhao ◽  
Xiaoning Ren ◽  
Jing Liu ◽  
...  

Oxygen self-doped CNO-x with tunable electronic band structure demonstrates unprecedentedly enhanced photodegradation of RhB and photocatalytic H2 production with excellent stability under visible light.


Physica ◽  
1954 ◽  
Vol 3 (7-12) ◽  
pp. 967-970
Author(s):  
D JENKINS

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