Development and application of Fe3O4–Pd nanospheres as catalyst for electrochemical-heterogeneous Fenton process

作者: Kyungho Kim , Pengpeng Qiu , Mingcan Cui , Jeehyeong Khim

DOI: 10.1016/J.CEJ.2015.09.035

关键词:

摘要: Abstract Fe 3 O 4 nanospheres with uniformly distributed Pd nanoparticles (Fe –Pd) were prepared and used to catalyze the electrochemical-heterogeneous Fenton (EC-HF) degradation of pentachlorophenol (PCP). Synthesis catalyst was confirmed by X-ray diffraction high-resolution transmission electron microscopy/energy-dispersive spectroscopy. The catalytic performance developed assessed roles in mechanism ion leaching PCP enhancement elucidated. conditions 5 V, pH 2.3, 288 K gave a removal efficiency 100% within 30 min catalyst, compared 17.2% for EC process alone. altered enhanced both homogeneous heterogeneous reactions when they loaded on surface. effects operating such as applied potential, pH, dose, solution temperature initial concentration investigated. results showed that higher potential favored larger kinetic constants, whereas constants decreased increasing pH. As increased, rate increased while constant decreased. optimal dose 50 ppm. In addition, –Pd reusability evaluated.

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