Advanced nanomaterials, including nano-calcium peroxide (nano-CaO2), induced Fenton-like treatment has been recently developed to effectively oxidise and remediate various organic...

Apr 15, 2018 · The transformation of chemical composition observed in FT-IR after grinding fitted the XRD results. Wet-grinded CaO 2 and CaO 2 synthesized in the aqueous phase exhibited a peak at 1464 cm −1 in FTIR analysis, which was more pronounced than the non-grinded CaO 2 -A and CaO 2 -B particles.

CaO2 nanoparticles were synthesized by co-precipitation technique and characterised using XRD and FTIR. A mechanism was proposed for adsorption of acrylic acid onto CaO2 nanoparticles based...

We incorporated calcium peroxide (CaO2)-loaded polycaprolactone (PCL) particles into the PFC-chitosan matrix and subsequently evaluated the release kinetics of O2 and H2O2 from these...

Dec 1, 2022 · Further qualitative analysis was evaluated using XRD and XPS. XRD indicated that CaO 2 NPs represented specific peaks (2θ = 30.1°, 35.6°, and 47.3°) [34], demonstrating the synthesis of CaO 2 NPs (Fig. 1 C).

May 24, 2021 · Comparing to the as-prepared CaO 2 nanoparticles, the X-ray diffraction (XRD) spectrum of CCF presents the consistent characteristics with three dominant peaks at 30.1°, 35.6°, and 47.3°, which are attributed to pure CaO 2 phase (PDF#03-0865; Figure 2d; Figure S1c, Supporting Information), and no additional impurities are observed. The ...

The XRD patterns of the as-prepared CaO 2 at all reactant addition rates completely matched the simulated XRD of the orthorhombic CaO 2 structure by Zhao et al. 34 It is concluded that the synthesized calcium peroxide structure was orthorhombic.

Jun 1, 2023 · XRD was conducted to identify the crystallographic structure of CaO 2 on the surface of the samples using a computer-controlled X-ray diffractometer (Ultima IV, Rigaku, Japan). The changes in surface morphology were observed by a Cold Field Scanning electron microscope (Regulus 8100, Hitachi, Japan).

In the present study, nanoparticles of metal peroxides (ZnO2, CaO2, CdO2 and BaO2) were prepared by precipitation and methods respectively without carbonates impurity at a suitable reaction ...

information matches the data of a tetragonal crystal phase. The power X-ray diffraction (XRD) pattern also shows that the as-synthesized spherical aggregates took a tetragonal crystal structure (Figure 3C). The broad diffraction peaks can be ascribed to the relatively small size of the nanocrystals in the aggregates.