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. 2022 Mar 9;9(9):nwac045. doi: 10.1093/nsr/nwac045

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© The Author(s) 2022. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Acceleration processes using Fenton's reagent. (A--C) Crystallization processes of silicalite-1 at 343 K under (A) Fenton conditions, (B) ultraviolet (UV) conditions (4.0 mW/cm²) and (C) dark conditions. (D--F) Electron paramagnetic resonance (EPR) spectra of the TPAOH–TEOS–H₂O system under (D) Fenton conditions, (E) UV conditions (4.0 mW/cm²) and (F) dark conditions. The EPR signals are marked by the following: red circles, •OH; green rectangles, oxidized DMPO radicals; blue arrows, silicon-based radicals; asterisks, ethanol radicals; and red rectangles, oxidized BMPO radicals. Reprinted with permission from ref. [75].