XPS raw data of samples undergoing simulated acid bioleaching of chalcopyrite as part of a column leaching study
Description
This dataset consists of two time series of XPS measurements performed on two chalcopyrite samples during simulated acid bioleaching. These measurements were obtained as part of a column leaching study where the focus was placed in tracking spatiotemporal surface-level changes. Each file corresponds to a specific particle located at a different location within the column system, and at a different time from the start of the leaching period. Each file contains the XPS measurements for a survey scan and from high-resolution scans performed in the O1s, C1s, K2p, Cu2p, Fe2p, and S2p regions. The interpretation of this data will be included in a future scientific publication. This entry will be updated with access information in the future.
Files
Steps to reproduce
A Thermo Scientific K-Alpha X-ray photoelectron spectrometer was used for the acquisition of the data, considering a base pressure of ~8x10-11 bar in the analysis chamber. Survey spectra were collected using an energy step size of 1 eV, a pass energy of 100 eV, and a dwell time of 25 ms. High resolution spectra of regions corresponding to carbon (C 1s), oxygen (O 1s), sulphur (S 2p), iron (Fe 2p), copper (Cu 2p), and potassium (K 2p) were also collected, using an energy step size of 0.1 eV, a pass energy of 20 eV, and a dwell time of 50 ms.