Dual‐Path Singlet Oxygen Generation by Sulfur Vacancy Tailored Atomic Iron Assembly for Sustainable Decontamination
Dual‐Path Singlet Oxygen Generation by Sulfur Vacancy Tailored Atomic Iron Assembly for Sustainable Decontamination
研究概述
研究内容请参见论文原文。
谱图与表征信息
Figure 2. Multimodal characterizations for elucidating S-vacancy roles in Fe assembly. a) S-vacancy content and Fe loading in all catalysts. b) Raman spectra, c) maximum intensity of EPR spectra, and d) Mo 3d XPS spectra of etched MoS2 support with varied S vacancies. e) Formation energies of anchoring Fe atoms on MoS2 with various S vacancies. f) Fe K-edge Fourier-transformed EXAFS signals of as-prepared catalysts and relevant references (the Fe−S3 moiety in FeSA/MoSV2 were actual fitting constructions, while other samples were schematic constructions).
Figure 4. Electronic structure effect of central metal sites on 1O2 generation (M = Mn, Fe, Co, Ni, and Cu). a) Schematic S-vacancy induced center metal sites-dependent PMS activation for controllable generation of 1O2. b) Fourier-transformed EXAFS signals of MSA-MoSV2 and relevant metal foils. c) kper-site of 4-CP removal in the MSA-MoSV2/PMS system (inserted pie charts represent the contributions of reactive species). Correlations of d) kper-site and unfilled 3d orbitals originated in different catalytic systems and e) Trade-offeffect between EF-ɛd,down and magnetic moment of different central metal sites.