Details

Autor(en) / Beteiligte

• Yin, Shengming
• Han, Jianyu
• Zhou, Tianhua
• Xu, Rong

Titel

Recent progress in g-C3N4 based low cost photocatalytic system: activity enhancement and emerging applications

Erscheinungsjahr

2015-01

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Graphitic C 3 N 4 (g-C 3 N 4 ) has continuously attracted attention since it was reported as a metal-free semiconductor for water splitting. However, its ability to evolve hydrogen from water is significantly dependent on the use of noble metal co-catalyst, mainly Pt. In recent years, good progress has been achieved in developing co-catalysts containing earth abundant elements only for constructing low cost and efficient g-C 3 N 4 based photocatalytic systems. Besides, exfoliation of bulk g-C 3 N 4 into two dimensional g-C 3 N 4 nanosheets offers large surface area and exposed active sites, which are beneficial for activity enhancement. Furthermore, oxygen evolution and CO 2 photoreduction over g-C 3 N 4 have gained increasing interests due to the demand to achieve overall water splitting and conversion of CO 2 into chemicals and fuels. In this mini-review, we will briefly summarize the latest research works on g-C 3 N 4 based photocatalytic systems during the last three years with emphasis on the progress achieved in enhancing the hydrogen evolution activity of g-C 3 N 4 by loading noble metal free co-catalysts, exfoliating bulk g-C 3 N 4 into nanosheets, and applying the g-C 3 N 4 system in photocatalytic O 2 evolution and CO 2 reduction. Noble metal free g-C 3 N 4 based photocatalysts find promising applications in the fields of photocatalytic H 2 production, overall water splitting and CO 2 reduction. Their photocatalytic can be enhanced by depositing non-noble metal co-catalysts and exfoliation to nanosheets.