2025年1月1日 · The wave length 200–800 nm double-beams UV–Vis spectrophotometer (Shanghai Drywell Scientific Instrument) was used to measure Ag 2 O nanoparticles. Using UV–visible spectroscopy and UV–visible diffuse reflectance spectroscopy (UV-DRS), the band gap was determined.

Because noble metals are intensely colored and exhibit absorptions due to surface plasmon oscillations, ultraviolet-visible (UV-Vis) absorption spectroscopy is a valuable technique for ...

2020年6月1日 · The Ultraviolet-visible (UV-Vis) absorption spectroscopy is a valuable technique for the characterization of the absorbance bands and band gap of nanoparticles (DRS) especially that of noble metals because they are intensely colored and show absorptions due to surface plasmon oscillations.

2021年5月1日 · Ag 2 O/Ag 2 S/CuBi 2 O 4 contained Ag 2 O of 36.7 wt% exhibits the highest photoactivities. The improved photocatalytic activity could be attributed to double Z-scheme heterojunction. This study provides a great way to obtain stable heterostructure photocatalyst.

The band gap of Cu-MOF/Ag2O and Cu-MOF/rGO has enhanced from visible light harvesting compound to near and far UV light harvesting material due to quantum size effect and can be used as coating...

2021年3月1日 · In this work, we developed a novel facile chemical precipitation-reduction method without high-temperature reaction or auxiliary devices to fabricate the Ag/Ag2 O@TiO 2 (A/Ag@TO) photocatalyst for removing gaseous toluene for the first time.

2024年6月27日 · Green synthesized Ag2O-supported MgO/rGO NCs were characterized through X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), Raman, ultraviolet–visible (UV–vis) spectroscopy, and photoluminescence (PL) spectroscopy, and gas chromatography–mass ...

The synthesized Ag2O NPs were tested for their photocatalytic activity towards the degradation of Methylene blue (MB) dye under solar light illumination and maximum removal efficiency of 91.5 %...

通过一种简便的方法合成了三维Ag2O和Ag共载TiO2（3D Ag2O-Ag / TiO2）复合材料，并利用SEM，EDX，TEM，XRD，XPS，UV-vis DRS，BET技术对其进行了表征，并将其应用于去除放射性碘离子（I（-））。 3D Ag2O-Ag / TiO2球在可见光下的光催化吸附能力（207.6 mg / g）是在黑暗中的四倍，即使在模拟盐湖水中，在黑暗中其光催化吸附能力几乎不受其他离子的影响。 Cl（-）高达I（-）的590倍。 证明了该复合物从不同类型的水（例如去离子水或盐湖水）中去除 …

Scanning electron microscope images showed that the Ag/Ag 2 O NPs have an oval and spherical shape. UV–vis spectroscopy showed that Ag/Ag 2 O NPs have a direct bandgap of 2.07–2.86 eV and an indirect bandgap of 1.60–1.76 eV.