XPS spectra of pure g-C3N4 and g-C3N4/CeO2 nanocomposites: (a…
网页The structure, morphology and composition of g-C3N4/CeO2 nanocomposites were characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field ...
Coordination tailoring of Cu single sites on C3N4 realizes selective ...
网页2021年10月15日 · The structures of Cu–N 4 and Cu–N 3 SACs were studied by X-ray diffraction (XRD) measurement. In the XRD pattern of C 3 N 4, typical peaks appear at 2θ of 13.1° and 27.3°, which are ...
Accurate K-edge X-ray photoelectron and absorption spectra of g-C3N4 ...
网页2019年9月27日 · We performed a density functional theory (DFT) study on X-ray photoelectron (XPS) and absorption (XAS) spectra of graphitic carbon nitride (g-C3N4) nanosheets at the N and C K-edges. A combined cluster-periodic approach was employed to calculate XPS spectra, in which the core ionic potential (IP) of …
分析中心首篇原位XPS成果发表 - Tsinghua University
网页2022年10月19日 · 使用一种新颖的原位XPS（SI-XPS）技术来研究光照前后g-C3N4 和C3N4@C-2 mol/L表面的电子转移过程。. 光照前后g-C3N4的峰值位置没有大的偏差，然而，在3D C3N4@C-2 mol/L的C1s光谱中，光照射后，N=C-N键的峰转移到高结合能，而C-C/C=C 键和C-O键均转移到低结合能，表明光生 ...
A critical review on graphitic carbon nitride (g-C3N4)-based …
网页2022年2月15日 · For non-metal heteroatoms and metal doped g-C 3 N 4, their valence and coordination configuration could be deduced based on their high resolution in the XPS analysis. X-ray diffraction (XRD) is also common method for determining the structure of g-C 3 N 4 by comparing standard cards.
Molybdenum impregnated g-C3N4 nanotubes as potentially …
网页2021年8月19日 · Molybdenum (Mo) impregnated g-C 3 N 4 (Mo-CN) nanotubes are fabricated via a thermal/hydrothermal process to augment photoelectrochemical properties during solar-driven water-splitting (SDWS)...
Plasma synthesis of Pt/g-C3N4 photocatalysts with enhanced ...
网页2021年8月25日 · From the XPS data, Pt/g-C 3 N 4 composites synthesized by the low-temperature plasma treatment exhibited higher reduction effect of Pt, more favorable ratio of Pt 0 to Pt 2+, and stronger Pt‒N coordination bonds than Pt/CN-PR composite prepared by the photodeposition reaction.
Variable dimensional structure and interface design of g-C3N4…
网页2021年3月10日 · In this manuscript, variable dimensional structured BiOI with surface oxygen vacancies (OVs) were prepared via an in-situ growth on mesoporous g-C 3 N 4 nanosheets through one-pot synthesis at room temperature, which possesses the p-n heterojunction required for the high-performance photocatalysis.
g-C3N4-based materials functionalized with Au, Ag, and Au-Ag: An XPS …
网页2022年9月7日 · In the present contribution, x-ray photoelectron spectroscopy was used to characterize the surface composition and elemental chemical states of graphitic carbon nitride (g-C 3 N 4) materials decorated with highly dispersed noble metals (Au, Ag, or Au + …
XPS spectra of g-C3N4, O-C3N4 and O-C3N4/MoS2-5: (a
网页Electrochemical impedance spectroscopy technique (EIS) has been selected as the main detection method to measure the Antibody (Ab) and Antigen (Ag) interaction at the immunosensor surface because...