@Article{CL.2025.228.665,
AUTHOR = {C. M. Fu, M. Z. Ge, X. Q. Zhang, W. Yan},
TITLE = {3D/3D C-MoO<sub>2</sub>/Cd<sub>0.9</sub>Zn<sub>0.1</sub>S composite with an S-scheme electron transfer pathway enables highly efficient photocatalytic hydrogen evolution},
JOURNAL = {Chalcogenide Letters},
VOLUME = {22},
YEAR = {2025},
NUMBER = {8},
PAGES = {665--677},
URL = {http://www.techscience.com/CL/v22n8/64837},
ISSN = {1584-8663},
ABSTRACT = {Constructing heterojunctions represents a crucial strategy for enhancing semiconductor 
photocatalysts. In this study, the C-MoO<sub>2</sub>/Cd<sub>0.9</sub>Zn<sub>0.1</sub>S S-scheme heterojunction composite 
was successfully fabricated through a self-assembly approach. XPS analysis confirmed the 
spontaneous transfer of intrinsic electrons from Cd<sub>0.9</sub>Zn<sub>0.1</sub>S to C-MoO<sub>2</sub> in the dark, 
establishing an internal electric field at the C-MoO2/Cd<sub>0.9</sub>Zn<sub>0.1</sub>S interface. Under visible 
light irradiation, the C-MoO<sub>2</sub>/Cd<sub>0.9</sub>Zn<sub>0.1</sub>S composite exhibited significantly enhanced 
hydrogen evolution activity, achieving a 6.3-fold improvement compared to pristine 
Cd<sub>0.9</sub>Zn<sub>0.1</sub>S. PL, TRPL, and electrochemical measurements collectively demonstrated that 
the incorporation of C-MoO<sub>2</sub> effectively suppressed the recombination of photogenerated 
electrons in Cd<sub>0.9</sub>Zn<sub>0.1</sub>S. The outstanding photocatalytic performance and improved charge 
carrier separation efficiency can be attributed to the S-scheme heterojunction configuration, 
which facilitates efficient electron transfer from Cd<sub>0.9</sub>Zn<sub>0.1</sub>S to C-MoO<sub>2</sub>. This work provides 
valuable experimental guidance for designing and constructing S-scheme heterojunction 
photocatalytic systems for solar hydrogen production. },
DOI = {10.15251/CL.2025.228.665}
}