“…The results showed that the band gap values of the synthesized ZnO NPs decreased with increasing extract concentration. 37 In the XRD patterns of all samples, the typical peaks appear at 2q of 31.75°, 34.41°, 36.23°, 47.53°, 56.58°, 62.84°, 66.61°, 68.32°and 69.12°corresponding to the (100), ( 002), ( 011), ( 102), ( 110), ( 103), ( 200), ( 112) and ( 201) of the hexagonal wurtzite crystal structure of ZnO NPs. 36,38 Furthermore, no strange peaks are present in the patterns.…”