Design of sculptured SnS/g-C3N4 photocatalytic nanostructure for highly efficient and selective CO2 conversion to methane

Hossam A.E. Omr, Raghunath Putikam, Mahmoud Kamal Hussien, Amr Sabbah, Tsai Yu Lin, Kuei Hsien Chen, Heng Liang Wu, Shien Ping Feng, Ming Chang Lin, Hyeonseok Lee*

*此作品的通信作者

研究成果: Article同行評審

22 引文 斯高帕斯(Scopus)

摘要

Here, we demonstrate the SnS/g-C3N4 crystallized and nanostructured photocatalysts for efficient and selective CO2 conversion to CH4 by engineered thermal evaporation and the decoration of g-C3N4 through a simple dipping method, overcoming the limitation of bulk SnS-based photocatalysts. The SnS/g-C3N4 nanostructured photocatalysts exhibit a superior methane production rate of 387.5 μmol∙m−2∙h−1 (= c.a. 122.33 μmol∙g−1∙h−1) with an apparent quantum yield of c.a. 9.7% at 520 nm with engineered lengths. Moreover, 100% selective production toward CH4 is also measured from the SnS/g-C3N4 photocatalysts, with > 10 h stable operation. These performances are, to the best of our knowledge, the highest production rate among reported photocatalytic films and metal sulfide/g-C3N4 composite-based photocatalysts. These highly improved performances are attributed to synergistic effects by the formation of nanostructured SnS/g-C3N4, exhibiting superior light absorption, higher crystallinity, Z-scheme charge transport via C-S bonding, physical advantages of the SnS nanostructure, and excellent physiochemical properties of the surfaces.

原文English
文章編號122231
期刊Applied Catalysis B: Environmental
324
DOIs
出版狀態Published - 5 5月 2023

指紋

深入研究「Design of sculptured SnS/g-C3N4 photocatalytic nanostructure for highly efficient and selective CO2 conversion to methane」主題。共同形成了獨特的指紋。

引用此