2017年4月1日 · The absence of an asymmetry, as in the case of XPS Pb 4f α-PbO and bulk TiO 2:Pb, and the simultaneous presence of much stronger Pb x O y distortions (i.e. ∼135 eV and ∼140 eV sub-bands with essentially higher spectral manifestation) allow to conclude that another phase of PbO 2 (and by all means not alpha) was fabricated in anatase thin ...

2024年1月1日 · Tangential extrapolation of XPS valence spectra for Ar + treated TiO 2 semiconducting material is presented in Fig. 8 for valence band energy determination [53], [54]. Valence band energy is expected to shift insignificantly while the created oxygen vacancy lowers the conduction band edge towards the valence band and therefore results into ...

2022年1月5日 · Inspection of XPS data presented in Table S2 clearly show that the PbSO x species are a dominant fraction of Pb and S components on the surface of IIPbS-Ti/TiO 2, IIIPbS-Ti/TiO 2 and IVPbS-Ti/TiO 2 samples whereas the PbS and PbO species are the main compounds on the surface of VIPbS-Ti/TiO 2 nanocomposites.

4 天之前 · X-ray photoemission spectroscopy (XPS) was used to investigate the chemical composition and oxidation state of TiO 2 and perovskite elements. For XPS, Thermo Scientific, K-Alpha, UK machine with 0.1 eV resolution was used. ... The Pb 4f spectrum in Figure 5d features peaks at ≈136.8 and ≈141.7 eV, ...

Download scientific diagram | XPS Pb 4f core-level spectra of Pb-implanted TiO2 host-matrices in the bulk and thin-film morphologies. The appropriate -PbO (Pb 2+ ), -PbO2 (Pb 4+ ) and Pbmetal (Pb0 ...

Download scientific diagram | The high-resolution XPS spectra of (a) Pb 2p, (b) O 1s, and (c) Ti 3d of Ti/B-TiO2-NTs and (d) Ti 3d of Ti/TiO2-NTs. from publication: Development of SDS-Modified ...

摘要 介绍了 Pb 掺杂的 TiO2 主体（体陶瓷和薄膜形态）结构中替代和聚集效应的联合实验和理论研究结果。块状和薄膜二氧化钛的铅掺杂是在脉冲离子注入的帮助下进行的，无需后回火（电子结构调制模式）。核能级和价带的 X 射线光电子能谱 (XPS) 鉴定和密度泛函理论 (DFT) 计算被用来 …

Download scientific diagram | XPS Valence Band spectra: a) Valence Band Structure Mapping for TiO2:Pb in the bulk and thin-film morphologies; b) Zoomed Valence Band area with XES Ti L2,3 and O K ...

2017年2月27日 · Commercially available TiO 2 (Degussa P-25, EVONIK Industries AG, Germany) comprising 80% anatase and 20% rutile was employed to prepare powder samples for in situ XPS scans. TiO 2 powder in ...

The X-ray photoelectron spectroscopy (XPS) qualification of core-levels and valence bands and Density-Functional Theory (DFT) calculations were employed in order to study the yielded electronic structure of Pb-ion modulated TiO 2 host-matrices. The combined XPS-and-DFT analysis has agreed definitely with the scenario of the implantation ...