Influence of Au content on photocatalytic performance of C@ZnO@Au hollow nanospheres

Largely Enhanced Surface Flashover Voltage of Poly(ether Imide) by Scalable and Durable ZnO Coating: A Gift from In Situ Growth

“…These two peaks correspond to the Zn 2p 3/2 and Zn 2p 1/2 states, respectively, and are assigned to the Zn 2+ presented in the ZnO lattice. 27 In the meantime, the high-resolution O 1s spectrum in Figure 4d also indicates that the surface of PEI/5ZnO has changed significantly. The O 1s spectrum of pristine PEI can be divided into only two distinct peaks, which correspond to C�O and C−O, while the O 1s spectrum of the PEI/5ZnO has two extra peaks corresponding to the metal oxides and the hydroxyl group on metal oxides.…”

“…High-resolution XPS spectra of Zn 2p for the PEI/5ZnO in Figure c exhibit two symmetric peaks at the binding energies of 1022 and 1045.1 eV. These two peaks correspond to the Zn 2p 3/2 and Zn 2p 1/2 states, respectively, and are assigned to the Zn 2+ presented in the ZnO lattice . In the meantime, the high-resolution O 1s spectrum in Figure d also indicates that the surface of PEI/5ZnO has changed significantly.…”

Synthesis of Core‐Shell Au@TiO2@C Nanoparticles and Their Photocatalytic Properties for the Degradation of Rhodamine B Under Simulated‐Solar Light

“…For the past few years, environment and energy challenges have become most serious global problem. Semiconductor (ZnO, [1][2][3] TiO 2 , [4][5][6] Fe 2 O 3 , [7] Ga 2 O 3 , [8,9] and so on) photocatalysis has shown enormous potential for not only producing renewable energy but also eradicating harmful contaminants from water. Titanium dioxide (TiO 2 ) is a widely studied transition metal oxides in the field of photocatalysis due to its superior electronic and catalytic properties, outstanding chemical stability and environment friendliness.…”

“…[10,11] Though semiconductor photocatalysis has achieved significant advancement, but developing high quality green photocatalysts is still in great demand. There are two main problems in TiO 2 based photocatalysts: [1,12,13] TiO 2 is a wide-bandgap semiconductor with a band gap of 3.2 eV, therefore, it produces photo-induced electron and hole pairs only when stimulated by ultraviolet light. Secondly, recombination rate of electron-hole pairs is high due to small size of the nanoparticles, which leads to low quantum efficiency.…”