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. 2022 Apr 14;10:835832. doi: 10.3389/fchem.2022.835832

TABLE 1.

Chemical composition of ZnS samples measured via XPS.

Sample S (at%) Zn (at%) S/Zn
0 mmol NaBH4 32.34 36.94 0.875
3 mmol NaBH4 36.33 42.28 0.859
5 mmol NaBH4 35.58 42.45 0.838
10 mmol NaBH4 36.36 42.61 0.866
20 mmol NaBH4 35.50 10.83 0.869