@article{Sun2023, 
author = {Zhiyi Sun and Yujuan Wei and Ting Cao and Zheng Liu and Rui Sui and Xiang Li and Jiajing Pei and Zhuo Chen and Shuo Wang},
title = {Natural keratin-based Fe-S1N3 single atom catalyst for insights into the coordination regulation effect of Fenton-like catalysis with high efficiency},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {7},
pages = {9003-9011},
keywords = {natural fiber, iron single atom, atomic regulation, Fenton-like catalysis},
url = {https://www.sciopen.com/article/10.1007/s12274-023-5661-7},
doi = {10.1007/s12274-023-5661-7},
abstract = {Single atom catalysts (SACs) have attracted great attention, yet the quest for highly-efficient catalysts is driven by the current obstacles of ambiguous structure-performance relationship. Here, we report a nature keratin-based Fe-S1N3 SACs with ultrathin two-dimensional (2D) porous carbon nanosheets structure, by controlling the active center through the precise coordination of sulfur and nitrogen. Compared with natural silk-based Fe-N4 catalyst, the Fe-S1N3 SACs exhibit excellent Fenton-like oxidation degradation ability. X-ray absorption fine structure (XAFS) and electron paramagnetic resonance (EPR) results confirm that S doping is conducive to electron transfer, to accurately generate ·OH with high oxidative degradation capacity at the active site. Therefore, the optimized Fe-S1N3 catalyst showed higher oxidation degradation activity for organic pollutant substrates (methylene blue (MB), Rhodamine B (RhB) and phenol), significantly superior to Fe-N4 samples. This work is devoted to the treatment and application of natural fibers, which provides a novel method for the synthesis of SACs and the regulation of atomic coordination environment.}
}