2023年9月6日 · In newly synthesized gCN materials, the EPR spectral component corresponding to spin species 2 is negligible, so the gCN spectrum in principle may be described with a single Lorentzian lineshape and has been shown by previous groups where a single symmetric Lorentzian lineshape in the gCN EPR spectrum was observed [2,4,5,8]. Deviation from a ...

2024年9月17日 · The strong EPR signals observed for the formation of TEMPO in Fig. 7f confirmed the generation of 1 O 2 in the GCN/PMS system while it is almost absent in the presence of PMS alone.

2023年5月1日 · Meanwhile, trapping experiments and electron paramagnetic resonance (EPR) ... DMPO spin-trapping EPR spectra of GCN-CQDs/BVO photocatalyst. (c) Kinetics of fluorescence intensity of TAOH produced from the oxidation of TA by photogenerated •OH over GCN-CQDs/BVO and GCN/BVO at 425 nm. Inset is the representative fluorescence spectral change ...

The time dependence of these two peaks present in gCN EPR spectra recorded sequentially in air over several months demonstrates a steady change in the electronic structure of the gCN framework over time. This light-independent, slowly evolving additional spin center is demonstrated to be the result of oxidative processes occurring as a result ...

2024年11月15日 · The EPR spectra of GCN-20 shows apparently higher intensity than that of GCN, revealing a stronger degree of electron delocalization. This result is attributed to molecular structure modification by the electron-withdrawing conjugated nature of maleamide and leads to more effective charge separation [52] .

2023年12月15日 · For the N v-GCN6, the intensity of EPR signals is stronger than that of the GCN, indicating the introduced N 3C vacancies can promote the concentration of unpaired electrons. Based on the above analysis of TEM, XRD, FTIR, XPS, Raman, and EPR, N 3C has been successfully introduced into the GCN matrix, and remarkable photocatalytic performance ...

2023年9月6日 · gCN EPR spectra recorded sequentially in air over several months demonstrates a steady change in. the electronic structure of the gCN framework over time. This light-independent, slowly evolving.

Download scientific diagram | EPR spectra of GCN and 3%‐MO/GCN in the dark and under irradiation for 5 min and 10 min with a g‐value of 2.0. from publication: Synergy of MoO2 with Pt as ...

2023年9月6日 · Graphitic carbon nitride (gCN) materials have been shown to efficiently perform light-induced water splitting, carbon dioxide reduction, and environmental remediation in a cost-effective way. However, gCN suffers from rapid charge-carrier recombination, inefficient light absorption, and poor long-te …

通过原位 x 射线光电子能谱 （xps） 光谱、epr 分析和密度泛函理论 （dft） 计算验证了 sv-mos2@gcn 异质结的 s 型电荷转移机制。 本研究通过合理的结构设计调节电荷转移，建立了增强光催化 CO2 还原和生物质选择性氧化的框架。