0D-1D hybrid nanoarchitectonics: tailored design of FeCo@N-C yolk-shell nanoreactors with dual sites for excellent Fenton-like catalysis

• Published in: Chemical science (Cambridge) Vol. 12; no. 46; pp. 15418 - 15422
• Main Authors: Wang, Chaohai, Wang, Hongyu, Na, Jongbeom, Yao, Yiyuan, Azhar, Alowasheeir, Yan, Xin, Qi, Junwen, Yamauchi, Yusuke, Li, Jiansheng
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 01.12.2021; The Royal Society of Chemistry
• Subjects: Bisphenol A; Carbon fibers; Catalysis; Chemistry; Density functional theory; Electron transport; Pollutants; Shells (structural forms)
• ISSN: 2041-6520; 2041-6539
• DOI: 10.1039/d1sc05000a

Heterogeneous Fenton-like processes are very promising methods of treating organic pollutants through the generation of reactive oxygen containing radicals. Herein, we report novel 0D-1D hybrid nanoarchitectonics (necklace-like structures) consisting of FeCo@N-C yolk-shell nanoreactors as advanced catalysts for Fenton-like reactions. Each FeCo@N-C unit possesses a yolk-shell structure like a nanoreactor, which can accelerate the diffusion of reactive oxygen species and guard the active sites of FeCo. Furthermore, all the nanoreactors are threaded along carbon fibers, providing a highway for electron transport. FeCo@N-C nano-necklaces thereby exhibit excellent performance for pollutant removal via activation of peroxymonosulfate, achieving 100% bisphenol A ( k = 0.8308 min −1 ) degradation in 10 min with good cycling stability. The experiments and density-functional theory calculations reveal that FeCo dual sites are beneficial for activation of O-O, which is crucial for enhancing Fenton-like processes. Novel 0D-1D hybrid nanoarchitectonics consisting of FeCo@N-C yolk-shell nanoreactors are developed for Fenton-like reaction. With the multilevel advantages of this design, FeCo@N-C nano-necklaces exhibit excellent performance for BPA removal.