Controllable synthesis of α-Bi2O3 and γ-Bi2O3 with high …
2016年12月25日 · XRD patterns were obtained on a Rigaku MiniFlex diffractometer with Cu KR radiation source. X-ray photoelectron spectra were obtained on Thermo ESCALAB 250Xi. The morphologies were examined by scanning electron microscopy (SEM, Quanta 200 F) and high-resolution transmission electron microscopy (HETRM, JEOL, JEM-2100).
shows the X-ray diffraction (XRD) pattern for a Bi2O3 layer, with ...
It was found that the particle size and dot density of Bi2O3 dot layer could be regulated by controlling the evaporation rate and evaporation quality of Bi powder. The results showed that the...
XRD patterns of (a) the as-prepared bismuth oxide α-Bi2O3 at …
In this study, we report on the green fabrication of alpha bismuth oxide nanoparticles (α-Bi2O3 NPs) using an extract from the Himalayan plant Rubus ellipticus. α-Bi2O3 nanoparticles were...
Synthesis, characterization and photocatalytic activity of α-Bi2O3 ...
2015年10月1日 · After heat treatment of the oxalate precursors, the obtained oxide α-Bi 2 O 3 was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). These α-Bi 2 O 3 nanoparticles show low efficiency in photodegradation under UV light irradiation of the dye rhodamine B.
Gas sensing and photocatalytic activity of synthesized hierarchical ...
2024年5月20日 · The synthesized Bi2O3 analyzed using X-ray diffraction (XRD) techniques reveals that SG and HY are monoclinic crystal structures. Fourier-transform infrared spectroscopy (FTIR) did the functional group analysis, which shows the absorption band at 874 cm−1 and 858 cm−1 in typical stretching and bending vibrations characteristics.
Bi2O3 Reinforced B2O3–SiO2–MgO Glass System: a ... - Springer
2025年1月15日 · The amorphous character was verified with XRD. As an increase of Bi2O3 the ( $$\rho$$ ) increased from 2.88 to 4.97 g/cm3 and ( $${V}_{m}$$ ) declined from 22.66 to 21.69 cm3/ mol. The ultrasonic velocities were measured to evaluate elastic moduli. Using the theoretical Makishima-Mackenzie model to calculate elastic moduli provides a valuable ...
Visible-driven photocatalytic activity and stability of Bi2O3 …
2024年10月21日 · In order to increase the photocatalytic activity and stability of Bi 2 O 3, the composite material of CQDs@Bi 2 O 3 was prepared by solvothermal method in this study. The physical–chemical properties of the catalysts were characterized …
Nanostructured δ-Bi2O3: Synthesis and their enhanced …
2022年11月15日 · In this work, we demonstrated the enhanced photocatalytic activity of δ-Bi 2 O 3 nanoparticles under visible light irradiation. Nanostructured δ-Bi 2 O 3 with less than 50 nm has been successfully synthesized by a facile chemical precipitation at room temperature.
nano-powder was characterized in detail by different techniques in terms of their structural, morphological, compositional, optical and photocatalytic properties. X-ray diffraction (XRD) analysis indicated that the as-synthesized Bi2O. 3NRs exhibited high purity with monoclinic structure (α-Bi. 2O.
X-ray diffraction (xrd) analysis Fig. 2 reveals the XRD pattern of Bi2O3 NPs with microrod-like structures. Due to four polymer types (a-d-Bi2O3, b-d-Bi2O3, g-d-Bi2O3, and d-Bi2O3), Bi2O3 has distinct crys-talline structures and properties. The sample’s crystalline stage is defined by the XRD pattern. According to the normal