Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

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

Authors
Kim, KyunghoQiu, PengpengCui, MingcanKhim, Jeehyeong
Issue Date
15-1월-2016
Publisher
ELSEVIER SCIENCE SA
Keywords
Electrochemical-Fenton process; Heterogeneous catalyst; Magnetite; Palladium; Pentachlorophenol
Citation
CHEMICAL ENGINEERING JOURNAL, v.284, pp.1165 - 1173
Indexed
SCIE
SCOPUS
Journal Title
CHEMICAL ENGINEERING JOURNAL
Volume
284
Start Page
1165
End Page
1173
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/89799
DOI
10.1016/j.cej.2015.09.035
ISSN
1385-8947
Abstract
Fe3O4 nanospheres with uniformly distributed Pd nanoparticles (Fe3O4-Pd) were prepared and used to catalyze the electrochemical-heterogeneous Fenton (EC-HF) degradation of pentachlorophenol (PCP). Synthesis of the catalyst was confirmed by X-ray diffraction and high-resolution transmission electron microscopy/energy-dispersive X-ray spectroscopy. The catalytic performance of the developed catalyst was assessed and the roles of Pd in the mechanism of Fe ion leaching and PCP degradation enhancement were elucidated. The conditions of 5 V, pH 2.3, and 288 K gave a removal efficiency of 100% within 30 min with the catalyst, compared with 17.2% for the EC process alone. Pd nanoparticles altered the Fe leaching mechanism and enhanced both homogeneous and heterogeneous Fenton reactions when they were loaded on the Fe3O4 surface. The effects of operating conditions such as applied potential, pH, catalyst dose, solution temperature and initial PCP concentration were investigated. The results showed that a higher applied potential and solution temperature favored larger kinetic constants, whereas kinetic constants decreased with increasing solution pH. As the initial PCP concentration increased, the initial degradation rate increased while the kinetic constant decreased. The optimal catalyst dose was 50 ppm. In addition, the Fe3O4-Pd reusability was evaluated. (C) 2015 Elsevier B.V. All rights reserved.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Khim, Jee hyeong photo

Khim, Jee hyeong
공과대학 (건축사회환경공학부)
Read more

Altmetrics

Total Views & Downloads

BROWSE