Super-resolution imaging of photogenerated charges on CdS/g-C₃N₄ heterojunctions and its correlation with photoactivity

Abstract

Construction of heterostructures is an effective way to improve photo-induced charge separation and photocatalytic performance. Among various structures, type II and direct Z-scheme heterojunctions with distinct charge separation mechanisms are...

Oxygen vacancies assist a facet effect to modulate the microstructure of TiO2 for efficient photocatalytic O2 activation

“…Benefiting from the enhanced O 2 activation ability for ROS generation, T101-V O has the potential to be an effective environmental purification photocatalyst. 47 Fig. 6a presents the degradation efficiency of the three samples as photocatalysts for organic pollutants (rhodamine B (RhB) was chosen as a model pollutant) in DI water.…”

In situ quantitative single-molecule study of site-specific photocatalytic activity and dynamics on ultrathin g-C3N4 nanosheets

“…30 The absorption bands in the range of 1000-1700 cm −1 arise from the stretching mode of aromatic heterocycles. 31 The broad peaks at 3000-3600 cm −1 correspond to the N-H bond stretching. The shape of these peaks becomes sharper with increasing exfoliation time.…”

Ultrathin Niobate Nanosheet Assembly with Au NPs and CdS QDs as a Highly Efficient Photocatalyst

“…The TiO 2 nanosheet exhibited excellent photocatalytic efficiency in comparison with commercially available Degussa P25 [14c] . Because the photogenerated charge separation and stability of photocatalysts can be enhanced, 2D layered transition‐metal dichalcogenides (e. g., MoS 2 and WS 2 ) play a significant role as cocatalysts in photocatalytic reactions [15] . Hao et al.…”

“…[14c] Because the photogenerated charge separation and stability of photocatalysts can be enhanced, 2D layered transition-metal dichalcogenides (e. g., MoS 2 and WS 2 ) play a significant role as cocatalysts in photocatalytic reactions. [15] Hao et al addressed a CdSÀ WS 2 composite in 2010. The activity of CdS increased up to 28 times in the presence of 1 wt % WS 2 during the photocatalytic H 2 evolution test.…”