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Updated: May 29, 2025
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
N-doped carbon nanotubes encapsulated Ni3ZnC0.7 nanoparticles catalyst for peroxymonosulfate activation:
Qihao Sun1, Huiyuan Deng1, Na Zhao2
1School of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China; National Engineering Laboratory of Circular Economy, Sichuan University of Science and Engineering, Zigong, 643000, China; Sichuan Engineering Technology Research Center for High Salt wastewater Treatment and Resource Utilization, Sichuan University of Science and Engineering, Zigong, 643000, China.
Abstract:
In this paper, a type of N-doped carbon nanotube-coated Ni3ZnC0.7 metal nanoparticle heterostructure catalyst (NZC-C-700) was prepared by two-step roasting method and applied to depredate bisphenol A (BPA) with peroxymonosulfate (PMS) activation. Characterizations and first principles calculation (DFT) reveal that the heterostructure formed by the graphite carbon layer and Ni3ZnC0.7 metal nanoparticles, coupled with various N doping, can effectively modulate surface charge distribution, which could improve charge transfer capability between the catalyst and PMS. Meanwhile, the results of quenching experiments, electron paramagnetic resonance (EPR) and chronoamperometry proposed that the system is a typical singlet oxygen (1O2) -dominated non-radical pathway. Moreover, the NZC-C-700/PMS system has strong salt tolerance, high selectivity, and good practical application prospects. Finally, the results of LC-QTOF-MS/MS analysis proposed two possible paths of BPA degradation in the system. This work will provide a novel treatment process for organic wastewater purification.
