Enhanced visible-light photocatalytic performance of Co/Ni doped Cu2MoS4 nanosheets for Rhodamine B and erythromycin degradation
Enhanced visible-light photocatalytic performance of Co/Ni doped Cu2MoS4 nanosheets for Rhodamine B and erythromycin degradation
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Co/Ni 掺杂 Cu2MoS4 纳米片增强可见光光催化性能，用于降解罗丹明 B 和红霉素
DOI：
10.1016/j.jallcom.2021.158612
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发表时间：
2021
影响因子：
6.2
通讯作者：
G.
中科院分区：
文献类型：
--
作者：
Ma;J. T;Zhu;F;Ji;P. F;Zou;Q;Wang;H. Y;Xu;G.
采用简单的绿色溶液合成法成功地将Co和Ni掺杂到钼-硫化铜（Cu 2 MoS 4）中。催化剂的结构和性能的表征表明，Co和Ni掺杂的Cu 2 MoS 4表现出更窄的带隙，更强的光电流，和更低的光致发光光谱（PL）发射强度相比，纯Cu 2 MoS 4。光催化实验表明，Co/Ni掺杂的Cu 2 MoS 4具有最高的光催化活性，在1 h内，Cu 2 MoS 4、Co掺杂的Cu 2 MoS 4、Ni掺杂的Cu 2 MoS 4和Co/Ni掺杂的Cu 2 MoS 4的光催化活性分别为63.8%、84.5%、81.4%和93.5%。Co/Ni掺杂提高了Cu 2 MoS 4的光催化性能，这可能是由于Co/Ni掺杂促进了Cu 2 MoS 4的光捕获，降低了其禁带宽度，以及Co/Ni掺杂的协同效应。此外，连续5次催化循环表明Co/Ni掺杂的Cu 2 MoS 4光催化剂具有良好的上级稳定性。
In this study, Co and Ni were successfully doped into molybdenum-copper sulphide(Cu2MoS4) via a simple green solution synthesis method. Characterisation of the catalyst structure and properties revealed that the Co and Ni doped Cu2MoS4exhibited a narrower bandgap, stronger photocurrent, and lower Photoluminescence Spectroscopy (PL) emission intensity compared to pure Cu2MoS4. The photocatalytic experiments showed that the Co/Ni doped Cu2MoS4exhibited the highest photocatalytic activity, which in an hour of Cu2MoS4, Co-doped Cu2MoS4, Ni-doped Cu2MoS4and Co/Ni-doped Cu2MoS4samples were estimated to be 63.8%, 84.5%, 81.4% and 93.5%, respectively. The improved photocatalytic performance of Co/Ni doped Cu2MoS4may be due to the fact that Co/Ni doping promotes light trapping and reduces the bandgap of Cu2MoS4and the synergistic effect of Co/Ni doping. Furthermore, the five successive catalytic cycles reveal the superior stability of Co/Ni-doped Cu2MoS4photocatalyst.