Graphitic Carbon Nitride for Environmental Photocatalysis
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Catalytic Materials".
Deadline for manuscript submissions: closed (31 August 2019) | Viewed by 231
Special Issue Editor
2. Department of Chemistry, VŠB-Technical, University of Ostrava, 17. listopadu 15, 708 00 Ostrava-Poruba, Czech Republic
Interests: nanomaterials; composite materials; synthesis; characterization; photocatalysis; environmental analysis; water chemistry and technology
Special Issue Information
Dear Colleague,
Graphitic carbon nitride (g-C3N4) has attracted the attention of many researchers from all over the world as a metal-free polymeric semiconducting material. Although g-C3N4 had been synthetized by Liebig in 1834, an immense interest in this material started after a paper about photocatalytic water splitting under visible light published by Wang et al. in 2009. G-C3N4 has diamond-like properties, such as thermal, chemical, and photochemical stability, due to tri-s-triazine (heptazine) (C6N7)-based building blocks and strong covalent bonds between carbon and nitrogen atoms. One of the interesting features of g-C3N4 is its band gap energy of 2.7 eV, which makes it possible to work under visible light, such as for the purpose of photocatalysis.
Environmental heterogeneous photocatalysis is an important part of processes applied in advanced oxidation technologies. A variety of photocatalysts have been investigated and tested for water and air purification. The effectivity and degradation pathways of photocatalytic reactions have been intensively studied for many years. Despite a lot of oxide and non-oxide photocatalysts, TiO2 is still the most popular photocatalyst due to its stability, non-toxicity, and high oxidation ability.
The investigation of photocatalytic properties of g-C3N4 is very topical due to its physico-chemical properties. However, photocatalytic applications are limited by a fast recombination of photoinduced electrons and holes. This can be overcome via the doping of g-C3N4 structures with metals and non-metals, by coupling with metal and semiconductor nanoparticles forming heterojunction photocatalysts. Nowadays, many research groups deal with these problems in order to develop efficient and environmentally friendly g-C3N4-based photocatalysts.
It is my great pleasure to invite you to submit a manuscript to this Special Issue concerning the application of g-C3N4 and its composites in environmental photocatalysis. Full papers, communications, and reviews are all welcome.
Prof. Dr. Petr Praus
Guest Editor
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Keywords
- graphitic carbon nitride
- photocatalysis
- environmment
- water and air purification
