Details

Autor(en) / Beteiligte

• Shown, Indrajit
• Samireddi, Satyanarayana
• Chang, Yu-Chung
• Putikam, Raghunath
• Chang, Po-Han
• Sabbah, Amr
• Fu, Fang-Yu
• Chen, Wei-Fu
• Wu, Chih-I
• Yu, Tsyr-Yan
• Chung, Po-Wen
• Lin, M. C.
• Chen, Li-Chyong
• Chen, Kuei-Hsien

Titel

Carbon-doped SnS2 nanostructure as a high-efficiency solar fuel catalyst under visible light

Ist Teil von

• Nature communications, 2018-01, Vol.9 (1), p.1-10, Article 169

Ort / Verlag

London: Nature Publishing Group UK

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Photocatalytic formation of hydrocarbons using solar energy via artificial photosynthesis is a highly desirable renewable-energy source for replacing conventional fossil fuels. Using an l -cysteine-based hydrothermal process, here we synthesize a carbon-doped SnS 2 (SnS 2 -C) metal dichalcogenide nanostructure, which exhibits a highly active and selective photocatalytic conversion of CO 2 to hydrocarbons under visible-light. The interstitial carbon doping induced microstrain in the SnS 2 lattice, resulting in different photophysical properties as compared with undoped SnS 2 . This SnS 2 -C photocatalyst significantly enhances the CO 2 reduction activity under visible light, attaining a photochemical quantum efficiency of above 0.7%. The SnS 2 -C photocatalyst represents an important contribution towards high quantum efficiency artificial photosynthesis based on gas phase photocatalytic CO 2 reduction under visible light, where the in situ carbon-doped SnS 2 nanostructure improves the stability and the light harvesting and charge separation efficiency, and significantly enhances the photocatalytic activity. Photocatalytic reduction of CO 2 to hydrocarbons is a promising route to both CO 2 utilization and renewable fuel production. Here the authors identify that carbon-doped SnS 2 possesses a high catalytic efficiency towards CO 2 reduction owing to low photogenerated charge recombination rates.