Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 198, Issue -, Pages 347-377Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2016.05.052
Keywords
Graphitic carbon nitride; Heterostructures; Photocatalysis; Z-scheme mechanism; Nanostructures
Funding
- College of Science, Engineering and Technology (CSET) of the University of South Africa
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Engineering photocatalytic materials for renewable energy generation and environmental decontamination has always been a very exciting prospect to counter the global energy demands and pollution challenges. Graphitic carbon nitride (g-C3N4), a polymeric, metal-free semiconductor with a mild band gap (2.7 eV) has become hot-spot in various scientific exploits such as environmental pollution mitigation, energy generation and storage, organic synthesis, sensors, etc. These applications exploit the interesting properties of g-C3N4 such as good visible light absorption, graphene-like structure, good thermal and chemical stability and photocatalytic properties. In this review we begin with an overview of the fundamental aspects of photocatalysis as a pollution remediation strategy. This is followed by an introduction to graphitic carbon nitride as a photocatalyst, preparation strategies and its properties. Subsequently, a comprehensive and critical discussion of the various most recent developments towards enhancing the visible light photocatalytic properties of g-C3N4 for pollution alleviation, selected results and important photocatalytic degradation mechanisms, is given. Summary remarks and future perspective conclude the review. (C) 2016 Published by Elsevier B.V.
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