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Magnetic Carbon Foam Adorned With Co/Fe Nanoneedles As an Efficient Activator of Oxone for Oxidative Environmental Remediation: Roles of Surficial and Chemical Enhancement Publisher



Chen YC1, 2 ; Jiang XY3 ; Thanh BX4, 5 ; Lin JY6 ; Wang H7 ; Huang CW8 ; Yang H9 ; Ebrahimi A10, 11 ; Sirivithayapakorn S12 ; Lin KY3, 13
Authors
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Authors Affiliations
  1. 1. Department of Civil Engineering, National Taipei University of Technology, Taipei City, 10608, Taiwan
  2. 2. Department of Biotechnology, National Formosa University, Yunlin, 63208, Taiwan
  3. 3. Department of Environmental Engineering, Innovation Increasepment Center of Sustainable Agriculture, National Chung Hsing University, Taichung, 402, Taiwan
  4. 4. Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City, 700000, Viet Nam
  5. 5. Key Laboratory of Advanced Waste Treatment Technology, Vietnam National University Ho Chi Minh (VNU-HCM), Linh Trung Ward, Ho Chi Minh City, 700000, Viet Nam
  6. 6. Semiconductor and Green Technology Program, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, 402, Taiwan
  7. 7. Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
  8. 8. Department of Engineering Science, National Cheng Kung University, Tainan, 70101, Taiwan
  9. 9. Department of Chemical Engineering, National Chung Hsing University, Taichung, 402, Taiwan
  10. 10. Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, 81676-36954, Iran
  11. 11. Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran
  12. 12. Environmental Engineering Department, Faculty of Engineering, Kasetsart University, Bangkok, 10900, Thailand
  13. 13. Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, 40227, Taiwan

Source: C-Journal of Carbon Research Published:2023


Abstract

As heterogeneous catalysis is a practical method for activating Oxone, the immobilization of transition metals (e.g., Co, Fe) on carbonaceous supports is a promising platform. Thus, this study attempts to develop a carbon-supported metallic catalyst by growing Co/Fe on carbon foam (CF) via adopting melamine foam as a readily available template which could be transferred to nitrogen-doped CF with marcoporous structures. Specifically, a unique adornment of Co/Fe species on this CF is facilely fabricated through a complexation of Co/Fe with a plant extract, tannic acid, on melamine foam, followed by carbonization to produce nano-needle-like Co/Fe on N-doped CF, forming a magnetic CF (MCF). This resultant MCF exhibits a much higher surface area of 54.6 m2/g than CF (9.5 m2/g), and possesses a much larger specific capacitance of 9.7 F/g, than that of CF as 4.0 F/g. These superior features of MCF enable it to accelerate Oxone activation in order to degrade an emerging contaminant, bis(4-hydroxyphenyl)methanone (BHPM). Furthermore, MCF + Oxone exhibits a lower activation energy as 18.6 kJ/mol for BHPM elimination and retains its effectiveness in eliminating BHPM over multiple rounds. More importantly, the CF is also prepared and directly compared with the MCF to study the composition-structure-property relationship to provide valuable insights for further understanding of catalytic behaviors, surficial characteristics, and application of such a functional carbon material. © 2023 by the authors.
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