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. 2018 Jun 15;11(6):1022. doi: 10.3390/ma11061022

Figure 1.

Figure 1

Scanning electron microscope (SEM) images of pure TiO2 (a) HBP-NH2: 0 g/L; (b) HBP-NH2: 30 g/L; (c) HBP-NH2: 100 g/L; and (d) HBP-NH2: 200 g/L.