Publications by authors named "Yun-Hui Si"
Inspired by natural photosynthesis, artificial heterojunction photocatalysts have been extensively studied. Herein, a novel ternary graphitic carbon nitride/platinum/bismuth vanadate (g-CN/Pt/BiVO) photocatalytic system was successfully synthesized, where Pt/BiVO nanosheet is anchored on the surface of layered g-CN, as evidenced by structural observations. Ultraviolet photoelectron spectroscopy and ultraviolet-visible diffuse reflectance spectroscopy are carried out to identify the position of the conduction band and valence band.
View Article and Find Full Text PDFArticle Synopsis
- BFO/RGO composites were created using a simple hydrothermal method, and various analyses confirmed the successful reduction of graphene oxide and synthesis of the composites.
- The addition of reduced graphene oxide (RGO) helps decrease the recombination of electron and hole pairs, enhancing the photocatalytic performance of the BFO composites for degrading Methylene blue (MB) under visible light.
- The optimal performance was observed with 60 mg of graphene oxide, owing to better light absorption, more active sites, and a lower recombination rate of charge carriers, which can aid in developing effective photocatalysts for environmental applications.
Lithium-sulfur batteries are regarded as a promising energy storage system. However, they are plagued by rapid capacity decay, low coulombic efficiency, a severe shuttle effect and low sulfur loading in cathodes. To address these problems, effective carriers are highly demanded to encapsulate sulfur in order to extend the cycle life.
View Article and Find Full Text PDF