Fabrication of direct Z-scheme Cu2O@V-CN (octa) heterojunction with exposed (1 1 1) lattice planes and nitrogen-rich vacancies for rapid sterilization

Highly Sensitive Diethylamine Detection at Room Temperature Using g-C3N4 Nanosheets Decorated with CuO Hollow Polyhedral Structures

“…The FTIR spectra were obtained to examine the chemical composition and functional groups present in the g-C 3 N 4 , CuO, CuO-400 HPSs, and 1.8%-g-C 3 N 4 -CuO-400 HPHSs, as shown in Figure B and Figure S7. Figure S7 displays the distinctive peaks of g-C 3 N 4 , with broad peaks at 3137 cm –1 belonging to the stretches −NH and −OH. , The peaks between 1643/1566/1409/1327/1235 cm –1 are ascribed to the various C–N vibrations in g-C 3 N 4 aromatics . The adsorption bands seen at 802 and 885 cm –1 can be ascribed to the characteristic mode of tri- s -triazine units and the deformation mode of N single bond H bands, respectively.…”

“…Moreover, the polyhedron morphology of CuO is distinguished by the presence of (111) lattice planes on its terminal surfaces. 37 The ideal temperature range for annealing materials is critical to avoid grain coarsening or phase shifts, as higher temperatures increase crystallinity, reduce defects, larger grain size, and improve the XRD diffraction peaks of CuO material. 38,39 The intensity of diffraction peaks may increase with higher annealing temperatures, indicating that the size of CuO crystallites might enhance sintering and lead to a larger grain size.…”

“…Figure S7 displays the distinctive peaks of g-C 3 N 4 , with broad peaks at 3137 cm −1 belonging to the stretches −NH and −OH. 37,41 The peaks between 1643/1566/1409/1327/1235 cm −1 are ascribed to the various C−N vibrations in g-C 3 N 4 aromatics. 37 The adsorption bands seen at 802 and 885 cm −1 can be ascribed to the characteristic mode of tri-s-triazine units and the deformation mode of N single bond H bands, 37 respectively.…”

“…37,41 The peaks between 1643/1566/1409/1327/1235 cm −1 are ascribed to the various C−N vibrations in g-C 3 N 4 aromatics. 37 The adsorption bands seen at 802 and 885 cm −1 can be ascribed to the characteristic mode of tri-s-triazine units and the deformation mode of N single bond H bands, 37 respectively. In CuO, the peak at about 628 cm −1 was caused by the Cu single bond O stretching vibration (Figure 3B(a)).…”

“…The diffraction peaks were seen at 2θ of 32.5°, 35.5°, 38.7°, 48.6°, 53.4°, 61.4°, 65.7°, 67.8°, 68.7°, 72.8°, and 75.1° corresponded to (110), (−111), (111), (−202), (020), (−113), (202), (113), (−311), (221), and (−222) planes of CuO sample, respectively (Figure A­(a) and Figure S6b). Moreover, the polyhedron morphology of CuO is distinguished by the presence of (111) lattice planes on its terminal surfaces . The ideal temperature range for annealing materials is critical to avoid grain coarsening or phase shifts, as higher temperatures increase crystallinity, reduce defects, larger grain size, and improve the XRD diffraction peaks of CuO material. , The intensity of diffraction peaks may increase with higher annealing temperatures, indicating that the size of CuO crystallites might enhance sintering and lead to a larger grain size.…”