Open AccessPhotocatalytic Degradation of Rhodamine B Using Cd<sub>0.5</sub>Zn<sub>0.5</sub>S/ZnO Photocatalysts under Visible Light Irradiation
Author(s) -
Hyun Jung Lee,
Youngeup Jin,
Seong Soo Park,
Seong Soo Hong,
Gun Dae Lee
Publication year - 2015
Publication title -
applied chemistry for engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.144
H-Index - 11
eISSN - 2288-4505
pISSN - 1225-0112
DOI - 10.14478/ace.2015.1046
Subject(s) - photocatalysis , rhodamine b , zinc , visible spectrum , nuclear chemistry , materials science , degradation (telecommunications) , irradiation , precipitation , heterojunction , chemistry , metallurgy , optoelectronics , catalysis , physics , telecommunications , meteorology , nuclear physics , computer science , biochemistry
Cd 0.5 Zn 0.5 S/ZnO composite photocatalysts were synthesized using the precipitation method and characterized by XRD, UV-vis DRS, PL and FE-SEM. Photocatalytic activities of the materials were evaluated by measuring the degradation of rhodamine B under visible light irradiation. Contrary to ZnO, Cd 0.5 Zn 0.5 S/ZnO materials absorb visible light as well as UV and their absorption intensities in visible region increased with increasing the Cd 0.5 Zn 0.5 S amount. The increment in the Cd 0.5 Zn 0.5 S con-tent in Cd 0.5 Zn 0.5 S/ZnO also leads to reducing the particle size and consequently increasing the specific surface area. Cd 0.5 Zn 0.5 S/ZnO materials with the larger Cd 0.5 Zn 0.5 S content showed the higher activity in the photocatalytic degradation of rhodamine B under visible light irradiation. Therefore, the heterojunction effect between Cd 0.5 Zn 0.5 S and ZnO as well as the adsorption capacity seems to give important contributions to the photocatalytic activity of the Cd
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