Fig. 5
XPS spectra (a) wide survey, (b) C1s, (c) Ho3d, (d) N1s, (e) O1s, and (f) Zn2p of ZIF-8 (0%Ho)_AS, ZIF-8 (0%Ho)_TA, ZIF-8 (3%Ho)_AS, and ZIF-8 (3%Ho)_TA, respectively.
Fig. 5 | Scientific Reports
XPS spectra (a) wide survey, (b) C1s, (c) Ho3d, (d) N1s, (e) O1s, and (f) Zn2p of ZIF-8 (0%Ho)_AS, ZIF-8 (0%Ho)_TA, ZIF-8 (3%Ho)_AS, and ZIF-8 (3%Ho)_TA, respectively.
