Eco-friendly and effective strategy to synthesize ZnO/Ag2O heterostructures and its excellent photocatalytic property under visible light

Insights into the photocatalytic ozonation over Ag2O-ZnO@g-C3N4 composite: Cooperative structure, degradation performance, and synergistic mechanisms

“…As revealed in Fig. 4(i), the Ag2O-ZnO@CN0.4 exhibited lattice fringes of 0.24 nm, 0.27 nm and 0.28 nm indexing to the Ag2O plane of (111), the ZnO plane of (101) and the g-C3N4 plane of (002), which were in agreement with XRD results [16,31,38]. The images further verified the successful synthesis of Ag2O-ZnO@CN0.4 composite photocatalysts.…”

“…While the absorption band at 1638 cm −1 is ascribed to the C−N stretching vibration. Another adsorption bands at 3000-4000 cm −1 were similar to the Ag2O-ZnO particles ones, which could be caused by O-H or hydroxyl groups (-OH) stretching vibration of the absorbed water [31,32]. All those phenomena indicate that Ag2O-ZnO Submitted to J. Environ.…”

“…After metal loading, the absorption edges of ZnO@CN0.4, Ag2O@CN0.4, and Ag2O-ZnO@CN0.4 experienced a increasing red-shift, as ZnO has a boarder band gap (3.37 eV) than Ag2O (1.2 eV), indicating the enhancement of visible-light-driven photocatalytic activity of modified photocatalysts [31]. Furthermore, the Eg of Ag2O-ZnO@CN0.4 was estimated to be ~2.76 eV, which is more beneficial for the transition of photogenerated e − compared with g-C3N4.…”

Two-Step Visible Light Photocatalytic Dye Degradation Phenomena in Ag2O-Impregnated ZnO Nanorods via Growth of Metallic Ag and Formation of ZnO/Ag0/Ag2O Heterojunction Structures

“…30 The energy difference between the Zn2p 3/2 and Zn 2p 1/2 appears compatible with the Zn 2+ valence condition in ZnO in the analysis. 48,49 Figure 7c−e identifies the asymmetric O1s high-resolution XPS spectra The O 1s response of the ZO sample is deconvoluted into three satellite components at 530.72, 532.42, and 533.98 eV corresponding to O Lattice , O Non-Lattice , and O Ads , respectively. In the case of the ZAO heterostructure samples, an additional Gaussian subpeak at above 531 eV appears.…”

Synthesis And Studied Structural and Morphological Properties of 1-Dimensional Zno-Ag2O-Ag Nanowire

“…Accordingly, the fabrication of ZnO-Ag2O composite is one of the important issues that contribute to improving the various properties of great importance in many applications [9][10][11]. Recently, many studies have been conducted to prepare and diagnose ZnO nanoparticles, and many of these studies suffer from the high cost, complex preparation methods, the difficulty of controlling the shape of nanostructures and the long time to manufacture nanostructures [10,[12][13][14][15][16][17][18][19].…”