“…From Figure , it can be noted that an entire survey scan spectrum was obtained, which verified the existence of Zn 2p, Co 2p, W 4f, and O 1s after the deviation of peak positions were accurately corrected using C 1s, with a binding energy of 284.80 eV . The binding energy values of Zn 2p 3/2 and Zn 2p 1/2 are detected to be at 1021.40 and 1044.40 eV, respectively, which indicates the presence of Zn 2+ ions in the Zn 0.9 Co 0.1 WO 4 compound. ,, Obvious peaks at 34.93 and 37.10 eV corresponding to W 4f 7/2 and W 4f 5/2 are rational W 4f, which are in agreement with tungsten in the common valence of +6 . Co 2+ can be found in this pigment through the conclusive XPS spectrum of Co 2p, which presents two peaks at 780.33 and 796.73 eV, matching Co 2p 3/2 and Co 2p 1/2 , respectively. , The Co 2p peaks that are very weak may be attributed to the low content of Co 2+ , and the results of inductively coupled plasma emission spectrometer (ICP) test confirmed that the doping efficiency was 14.60%, relatively close to the theoretical value of 10%.…”