@Article{CL.2023.202.153,
AUTHOR = {Y. L. Ma, Y. Y. Tao},
TITLE = {Preparation of CdS/g-C<sub>3</sub>N<sub>4</sub> heterojunction photocatalyst with high activity sites by acid treatment},
JOURNAL = {Chalcogenide Letters},
VOLUME = {20},
YEAR = {2023},
NUMBER = {2},
PAGES = {153--164},
URL = {http://www.techscience.com/CL/v20n2/65338},
ISSN = {1584-8663},
ABSTRACT = {The key to achieve efficient degradation of organic pollutants lies in improving the 
separation efficiency of photogenerated electron-hole pairs in photocatalysts. Here, the 
hydrogen bonds between g-C<sub>3</sub>N<sub>4</sub> layers were broken by concentrated acid etching and 
exfoliation to obtain a more dispersed and lighter g-C<sub>3</sub>N<sub>4</sub> nanosheet structure, and then the 
CdS spherical nanoparticles were dispersed on g-C<sub>3</sub>N<sub>4</sub> nanosheets by hydrothermal 
method. The optimal loading of CdS on g-C<sub>3</sub>N<sub>4</sub> nanosheets was determined by testing the 
degradation performance of the composite photocatalysts with different loading amounts. 
The degradation performance was tested by simulating sunlight using a 700-800 W xenon 
lamp equipped with a 420 nm cut-off filter, which showed that the degradation of MB by 
7% CdS/g-C<sub>3</sub>N<sub>4</sub> photocatalyst was 90.7% for MB. It indicates that concentrated acid 
treatment and loading of CdS nanoparticles can significantly improve the photocatalytic 
activity of g-C<sub>3</sub>N<sub>4</sub> nanosheets, which is attributed to the enhancedup conversion function 
of g-C<sub>3</sub>N<sub>4</sub> by loading CdS to enhance the response range and ability of g-C<sub>3</sub>N<sub>4</sub> in visible 
light and the photogenerated electron-hole pair separation rate by loading CdS, thus 
improving the photocatalytic performance of the composite.},
DOI = {10.15251/CL.2023.202.153}
}