The scientific community globally have sought for alternative energy generation approaches and environmental remediation techniques to address the changes in consumption patterns of fossil fuel. Semiconductor photocatalysis has been reported as a potential technique to address the aforementioned challenge with graphitic carbon nitride (g-C 3 N 4 ) identified as one of the novel nanomaterial exploration and applications in diverse fields. Many reviews have been reported on g-C 3 N 4 focusing on photocatalysis principles, preparation techniques, photocatalytic enhancement strategies and various photocatalytic applications. However, in this study, a scientometric assessment was conducted to detail the research status on g-C 3 N 4 semiconductor for photocatalytic reduction of CO 2 and visualization of the future research trends. The scientometric review covers 504 published articles retrieved from the SCOPUS database online spanning from 2010 to May 2021. The articles were analysed using the VOSviewer mapping tool software using 10 scientometric indices. The results show 461 authors globally contributed to the topic with 333 articles from China and progressive increase in published articles in diverse journals from 1 in 2010 to 88 in May 2021. Collaborations exist between authors and co-authors from various countries and institutions. The new trending areas for g-C 3 N 4 photocatalysts include nanomedicine, biomedical systems, toxicological industries, food safety monitoring and mathematics.
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.
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