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ABSTRACT
In this contribution, Ag-modified g-C3N4 photocatalysts with different Ag loading were prepared by a facile photoreduction method. The photocatalysts prepared were characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), UV/Vis diffuse reflectance spectroscopy, and surface photovoltage spectroscopy (SPV), respectively. The separation efficiency of photo-induced charge pairs was studied using benzoquinone (BQ) as scavenger. The activities of the photocatalysts were evaluated by decolorization of rhodamine B aqueous solution under simulated solar illumination. Compared to g-C3N4, Ag/g-C3N4 photocatalysts exhibit enhanced photocatalytic performance due to the improved separation efficiency of photo-generated charge pairs.
Funding
This project was supported financially by the program of Science and Technology Department of Sichuan province (No.2015JY0081), the Project of Zigong city (No.2014HX14), Construct Program of the Discipline in Sichuan University of Science and Engineering, Sichuan Provincial Academician (Expert) Workstation (No.2015YSGZZ03), and the Opening Project of Key Laboratory of Green Catalysis of Sichuan Institutes of High Education (No. LZJ1302).