“…As shown in Figure 7a, Fe 3 O 4 peaks in the regions of 30.32°, 35.55°, 43.33°, 53.82°, 57.38°, and 62.95°are observed. 55 The indicated peaks are related to Miller indices of ( 220), ( 311), (400), ( 422), (511), and (440), respectively. 59 In Figure 7b, the combination of Fe 3 O 4 and Bio-MOF-13 was confirmed by demonstrated peaks at 6.95°, 13.12°, 15.99°, 21.41°, and 26.19°witch related to the Bio-MOF-13, along with Fe 3 O 4 peaks.…”