Of ZnO-TiO22-rGO.Element Element C C O O Ti Ti Zn Zn Totals TotalsWeight Weight 20.97 20.97 36.19 36.19 22.17 22.17 20.67 20.67 one hundred.00 one hundred.Atom Atom 36.47 36.47 47.26 47.26 9.67 six.60 6.60 one hundred.00 one hundred.Figure four shows the elemental mapping component of ZnO-TiO22-rGO. Figure 4a mainly Figure four shows the elemental mapping part of ZnO-TiO -rGO. Figure 4a primarily shows the elemental mapping of in the ZnO rod range. Figure 4b primarily shows the eleshows the elemental mapping the ZnO rod variety. Figure 4b mainly shows the elemental mapping on the TiOthe TiO2 MCC950 Inhibitor sphere range. It really is extra precise tothat that the prior SEM mental mapping of 2 sphere range. It really is far more precise to determine see the previous SEM of ZnO-TiO2 -rGO hashas ZnOthe the rod range and 2 in 2 in sphere range. For ZnO, the rod of ZnO-TiO2-rGO ZnO in in rod Pitstop 2 In stock variety and TiO TiOthe the sphere variety. For ZnO, the elements are fundamentally Zn and O. For TiO2 TiO2 spherical particles,O, Ti, and Zn contents rod components are generally Zn and O. For spherical particles, the the O, Ti, and Zn conare much more,much more, indicating that for probably the most spherical,TiO2, ZnO rods are more exposed. It tents are indicating that for one of the most spherical TiO2 ZnO rods are extra exposed. It might be clearly noticed thatthat the background element C C for both ZnO rods andTiO22 spheres, may be clearly noticed the background element is is for both ZnO rods and TiO spheres, indicating that ZnO rods and TiO2 spheres are grown on the graphene oxide film. It is also proved that the elemental composition of ZnO-TiO2 -rGO ternary nanomaterials is Zn, Ti, O, and C. Figure 5a shows the XRD patterns of four nanomaterials, ZnO, TiO2 , ZnO-TiO2 , and ZnO-TiO2 -rGO. ZnO displays characteristic diffraction peaks at 2 = 31.25 , 34.72 , 36.36 , 47.83 , 54.55 , and 62.83 . They correspond towards the crystal planes (one hundred), (002), (101), (102), (110), and (103) of PDF#99-0111, respectively. TiO2 exhibits characteristic diffraction peaks at two = 25.36 , 37.98 , 48.16 , 55.25 , and 62.96 , corresponding towards the crystallographic planes (101), (004), (200), (211), and (204) of PDF#99-0008, respectively. The ZnO-TiO2 binary nanocomposites show diffraction peaks at 25.36 , 31.94 , 34.49 , 36.44 , 47.85 , 56.89 , and 63.05 [37]. The presence of ZnO with TiO2 is demonstrated. Figure 5b showsChemosensors 2021, 9,Chemosensors 2021, 9,six of6 ofthe ZnO-TiO2 -rGO HRTEM image. Immediately after the experimental calculation by the software program indicating that ZnO rods and TiO2 spheres are grown around the graphene oxide film. It’s a Gatan DigitalMicrograph, the lattice spacing of ZnO is 0.26 nm, which corresponds to proved that the elemental composition of ZnO-TiO2-rGO ternary nanomaterials is Zn, the crystal plane of ZnO in XRD (one hundred). The lattice spacing of TiO2 is 0.30 nm, which O, and C. corresponds to the crystal plane of TiO2 in XRD (101) [38].aCOTiZnbCOTiZnChemosensors 2021, 9,7 ofFigure four. (a) ZnO-TiO2-rGO elemental mapping of mapping of ZnO. (b) ZnO-TiO2(b) ZnO-TiO2 -rGO elemental Figure 4. (a) ZnO-TiO2 -rGO elemental rod-shaped rod-shaped ZnO. -rGO elemental mapping of spherical TiO2. mapping of spherical TiO2 .aIntensity (a.u.)Figure 5a shows the XRD patterns of four nanomaterials, ZnO, TiO2, ZnO-TiO2, a ZnO-TiO2-rGO.ZnO displays characteristic diffraction peaks at 2 = 31.25 34.72 36.three ZnO TiO2 ZnO-TiO2 100 47.83 54.55 and 62.83 They correspond towards the crystal planes (100), (002), (101), (ten TiO2 101 nm d=0.30 (110), and (103) ZnO-TiO -rGO of PDF#99-0111, respectively. TiO2 exhibits.