Study on the Degradation of Methylene Blue by Cu-Doped SnSe

Li Fan; Hongliang Zhu; Kaili Wang; Hao Liu; Weina Hu; Xin Xu; Shancheng Yan

doi:10.3390/molecules28165988

Study on the Degradation of Methylene Blue by Cu-Doped SnSe

Molecules. 2023 Aug 10;28(16):5988. doi: 10.3390/molecules28165988.

Authors

Li Fan¹, Hongliang Zhu¹, Kaili Wang², Hao Liu³, Weina Hu³, Xin Xu³, Shancheng Yan³

Affiliations

¹ School of Materials Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
² School of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
³ School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China.

Abstract

Treatment of organic wastewater is still a difficult problem to solve. In this paper, Cu-doped SnSe powder was synthesized by a convenient and efficient hydrothermal method. Meanwhile, the degradation effect of different doping concentrations of SnSe on methylene blue was investigated. It was found that at low doping concentrations, the degradation effect on methylene blue was not obvious because Cu was dissolved in the lattice of the SnSe matrix at low concentrations. As the doping concentration increased, SnSe changed from a layered structure to a nanocluster structure with reduced particle size, and a mixed phase of SnSe and Cu₂SnSe₄ appeared. In fact, the degradation effect on methylene blue was significantly enhanced, and we found that the catalytic degradation effect on methylene blue was best at a doping concentration of 10 wt.%.

Keywords: Cu doping; SnSe; degradation; methylene blue.

Grants and funding

This work was supported by the National Science Foundations of China (No. 62274093, No. 61991431), the Excellent Youth Foundation of Jiangsu Scientific Committee (BK20211538), and the National Basic Research Program of China (2018YFA0209100).