Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone Electrodeposition
A strategy to determine the effect of Cd<sup>2+</sup> on the electrodeposition of copper from a copper electrolyte by cyclone electrowinning is presented. The concentration of Cu<sup>2+</sup> in the copper electrolyte with different Cd<sup>2+</sup> concentrations...
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MDPI AG
2021-03-01
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| author | Yan Wang Bo Li Hongao Xu Jihao Guo |
| author_facet | Yan Wang Bo Li Hongao Xu Jihao Guo |
| author_sort | Yan Wang |
| collection | DOAJ |
| description | A strategy to determine the effect of Cd<sup>2+</sup> on the electrodeposition of copper from a copper electrolyte by cyclone electrowinning is presented. The concentration of Cu<sup>2+</sup> in the copper electrolyte with different Cd<sup>2+</sup> concentrations was determined by atomic absorption spectrometry (AAS). It indicated that the current efficiency, the rate of electrodeposition, and the rate copper electrodeposition decreased with the addition of Cd<sup>2+</sup> in the three stages of electrodeposition. The current efficiency declined from 99.6 to 79.2% and the copper electrodeposition rate declined from 52 to 40% in the first electrodeposition. The current efficiency had no significant change, and the copper electrodeposition rate declined from 88 to 77% in the second electrodeposition. The current efficiency declined from 72.6 to 40.3%, and the copper electrodeposition rate was all at 99% in the third electrodeposition. The influences of the Cd<sup>2+</sup> concentration on the purity and morphology of cathode copper were investigated. The effect of Cd<sup>2+</sup> concentration on the purity and morphology of cathode copper was also studied. In the three-stage electrodeposition, the addition of the Cd<sup>2+</sup> concentration mainly affected the microstructure of the cathode copper, but it had little effect on the purity of the cathode copper. The higher the amount of Cd<sup>2+</sup>, the rougher the morphology of the cathode copper and the larger the gap between the grains; the higher the amount of Cd<sup>2+</sup>, the lower the electrodeposition rate and current efficiency, though the reduction was small. |
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| language | English |
| last_indexed | 2024-03-10T12:56:32Z |
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| spelling | doaj.art-cf53881604f147cc87d2feca277dc1e22023-11-21T11:54:36ZengMDPI AGMetals2075-47012021-03-0111452910.3390/met11040529Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone ElectrodepositionYan Wang0Bo Li1Hongao Xu2Jihao Guo3State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, ChinaState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, ChinaState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, ChinaState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, ChinaA strategy to determine the effect of Cd<sup>2+</sup> on the electrodeposition of copper from a copper electrolyte by cyclone electrowinning is presented. The concentration of Cu<sup>2+</sup> in the copper electrolyte with different Cd<sup>2+</sup> concentrations was determined by atomic absorption spectrometry (AAS). It indicated that the current efficiency, the rate of electrodeposition, and the rate copper electrodeposition decreased with the addition of Cd<sup>2+</sup> in the three stages of electrodeposition. The current efficiency declined from 99.6 to 79.2% and the copper electrodeposition rate declined from 52 to 40% in the first electrodeposition. The current efficiency had no significant change, and the copper electrodeposition rate declined from 88 to 77% in the second electrodeposition. The current efficiency declined from 72.6 to 40.3%, and the copper electrodeposition rate was all at 99% in the third electrodeposition. The influences of the Cd<sup>2+</sup> concentration on the purity and morphology of cathode copper were investigated. The effect of Cd<sup>2+</sup> concentration on the purity and morphology of cathode copper was also studied. In the three-stage electrodeposition, the addition of the Cd<sup>2+</sup> concentration mainly affected the microstructure of the cathode copper, but it had little effect on the purity of the cathode copper. The higher the amount of Cd<sup>2+</sup>, the rougher the morphology of the cathode copper and the larger the gap between the grains; the higher the amount of Cd<sup>2+</sup>, the lower the electrodeposition rate and current efficiency, though the reduction was small.https://www.mdpi.com/2075-4701/11/4/529cathode coppercyclone electrowinningcopper electrolytemicromorphology |
| spellingShingle | Yan Wang Bo Li Hongao Xu Jihao Guo Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone Electrodeposition Metals cathode copper cyclone electrowinning copper electrolyte micromorphology |
| title | Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone Electrodeposition |
| title_full | Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone Electrodeposition |
| title_fullStr | Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone Electrodeposition |
| title_full_unstemmed | Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone Electrodeposition |
| title_short | Effect of Cd<sup>2+</sup> on Electrodeposition of Copper in Cyclone Electrodeposition |
| title_sort | effect of cd sup 2 sup on electrodeposition of copper in cyclone electrodeposition |
| topic | cathode copper cyclone electrowinning copper electrolyte micromorphology |
| url | https://www.mdpi.com/2075-4701/11/4/529 |
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