(Al, Cu) Co-doped ZnS nanoparticles: structural, chemical, optical, and photocatalytic properties
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The pristine and (Al, Cu) co-doped ZnS nanoparticles (NPs) were fabricated by a chemical refluxing approach at 100 °C for the first time. High resolution transmission electron microscopy images disclosed that the fabricated NPs were visually spheroid shaped. The X-ray diffraction and micro Raman spectroscopy results stipulated that (Al, Cu) co-doped ZnS NPs were effectively procured with zincblende structure without the existence of foreign phases. A reduction in the optical band gap was obtained in the ZnS NPs after (Al, Cu) co-doping. The photoluminescence (PL) of pristine ZnS was totally quenched through (Al, Cu) co-doping. Malachite green was degraded by using pristine and (Al, Cu) co-doped ZnS NPs under the simulated solar light illumination. Higher degradation efficiency was obtained through (Al, Cu) co-doped catalyst compared with the pristine ZnS catalyst. The (Al, Cu) co-doped ZnS NPs displayed the hydrogen production rate of 4994.7 m mol g−1 h−1 in 300 min under simulated solar light irradiation. Hence, (Al, Cu) co-doping is a novel and promising path to enrich the photocatalytic degradation and the hydrogen production of the pristine ZnS NPs.
This work was supported by the National Research Foundation of Korea (NRF) funded by Ministry of Education funded by the Ministry of Science, ICT and Fusion Research (2018R1D1A1B07040603) and BK21 Plus funded by the Ministry of Education (21A20131600011).
- 16.M. Kimi, L. Yuliati, M. Shamsuddin, J. Nanomater. 16(1), 195024 (2015)Google Scholar