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Boosting Fenton-Like Reactions via Single Atom Fe Catalysis

Open access
Yin, Yu, Shi, Lei, Li, Wenlang, Li, Xuning, Wu, Hong, Ao, Zhimin, Tian, Wenjie, Liu, Shaomin, Wang, Shaobin, Sun, Hongqi·2019·Environmental Science & Technology

Abstract

The maximization of the numbers of exposed active sites in supported metal catalysts is important to achieve high reaction activity. In this work, a simple strategy for anchoring single atom Fe on SBA-15 to expose utmost Fe active sites was proposed. Iron salts were introduced into the as-made SBA-15 containing the template and calcined for simultaneous decomposition of the iron precursor and the template, resulting in single atom Fe sites in the nanopores of SBA-15 catalysts (SAFe-SBA). X-ray diffraction (XRD), UV–vis diffuse reflectance spectroscopy (UV–vis DRS), high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), and extended X-ray absorption fine structure (EXAFS) imply the presence of single atom Fe sites. Furthermore, EXAFS analysis suggests the structure of one Fe center with four O atoms, and density functional theory calculations (DFT) simulate this structure. The catalytic performances of SAFe-SBA were evaluated in Fenton-like catalytic oxidation of p -hydroxybenzoic acid (HBA) and phenol. It was found that the single atom SAFe-SBA catalysts displayed superior catalytic activity to aggregated iron sites (AGFe-SBA) in both HBA and phenol degradation, demonstrating the advantage of SAFe-SBA in catalysis.

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Metadata

Authors
Yin, Y., Shi, L., Li, W., Li, X., Wu, H., Ao, Z., Tian, W., Liu, S., Wang, S., & Sun, H.
Venue
Environmental Science & Technology
Published
2019-08-22
Volume
53
Issue
19
Pages
11391-11400
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2969384429
Cited by
330
References
2
FWCI
12.24
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Boosting Fenton-Like Reactions via Single Atom Fe Catalysis. https://app.cochat.ai/papers/10.1021/acs.est.9b03342
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Yin, Y., Shi, L., Li, W., Li, X., Wu, H., Ao, Z., Tian, W., Liu, S., Wang, S., & Sun, H. (2019). Boosting Fenton-Like Reactions via Single Atom Fe Catalysis. Environmental Science & Technology. https://doi.org/10.1021/acs.est.9b03342

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