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Beilstein J. Nanotechnol. 2026, 17, 541–554, doi:10.3762/bjnano.17.35
Figure 1: (a) X-ray diffraction (XRD) patterns of graphene oxide (GO), reduced graphene oxide (rGO), and MIL-...
Figure 2: EDX elemental mapping and elemental composition of MIL-101/rGO (3.3), (a) EDX spectrum, (b) electro...
Figure 3: XPS spectra of the MIL-101/rGO (3.3): (a) survey spectrum, (b) high-resolution Cr 2p spectrum, (c) ...
Figure 4: SEM observation of (a) rGO, (b) MIL-101, and (c) MIL-101(Cr)/rGO (3.3).
Figure 5: (a) Cyclic voltammograms (CVs) recorded at different electrodes in 0.1 M BRS buffer (pH 4) containi...
Figure 6: (a) CVs of MIL-101/rGO(3.3)/GCE recorded in 0.1 M BR buffer over the pH range of 2–9 containing 15 ...
Figure 7: (a) Cyclic voltammograms of MIL-101/rGO(3.3)/GCE recorded in 0.1 M BR buffer (pH 4) containing 15 µ...
Scheme 1: The oxidation mechanism of CPR at MIL-101/rGO/CGE.
Figure 8: (a) DPV curves of MIL-101/rGO(3.3)/GCE recorded in 0.1 M BRS buffer (pH 4) at CPR concentrations ra...
Figure 9: (a) Relative standard deviation of the anodic peak currents obtained from DPV measurements recorded...
Figure 10: Relative error (RE%) caused by the interference of selected inorganic (a) and organic (b) species a...
Beilstein J. Nanotechnol. 2024, 15, 719–732, doi:10.3762/bjnano.15.60
Figure 1: Images of aqueous suspension of TiO2/GQDs samples (a) under white light and (b) under UV light. (c)...
Figure 2: (a) XRD patterns of TiO2, GQDs, and (1:4)TiO2/GQDs in suspension form. (b) XRD pattern of (1:4)TiO2...
Figure 3: HRTEM images of (a) TiO2, (b) GQDs, (c) (1:4)TiO2/GQDs, and (d) of (1:4)TiO2/GQDs with high magnifi...
Figure 4: EDX mapping of (1:4)TiO2/GQDs.
Figure 5: (a) CV curves at different electrodes in a solution (0.05 M BR buffer, pH 4) containing CURI = CHYP...
Figure 6: (a) CV curves of URI and HYP at equal concentrations of 25 µM in 0.05 M BR pH 2–6 at the (1:4)TiO2/...
Figure 7: (a) CV curves of (1:4)TiO2/GQDs-GCE in 0.05 M BR buffer (pH 3) with CURI = CHYP = 25 µM; scanning r...
Scheme 1: Proposed oxidation mechanisms of URI and HYP at the (1:4)TiO2/GQDs-GCE.
Figure 8: DPV curves at the (1:4)TiO2/GQDs-GCE. (a) 0.05 M BR pH 3 with CURI = CHYP = 1.00–15.26 µM. (b) Line...
Figure 9: The RSD of ten replicate measurements of (a) URI and (b) HYP at the (1:4)TiO2/GQDs-GCE in 0.05 M BR...
Figure 10: Effect of possible interferents. (a) Inorganic compounds and (b) organic compounds.