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| Type |
Poster Presentation |
| Area |
Environmental Energy |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
ENVR.P-504 |
| Subject |
Cu/Fly ash heterostructures for enhanced catalytic reduction of p-nitrophenol as recyclable catalyst |
| Authors |
Sungjun Bae*, Jaehyeong Park
Department of Environmental Engineering, Konkuk University, Korea
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| Abstract |
In this study, new Cu/fly ash (Cu/FA) heterostructure was synthesized by impregnation method to use FA as a support material for recyclable environmental catalysts. The composition and surface structure of the catalyst was characterized by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM). The results demonstrated that Cu nanoparticles were well loaded on the surface of FA especially where Fe elements were present. To examine the catalytic activity of Cu/FA, we tested the reduction of p-nitrophenol (p-NP) by Cu/FA in the presence of sodium borohydride. A variety of control tests by using different catalysts (i.e., Cu/SiO2, Cu/Al2O3 and Fe/SiO2) showed that catalytic activity of monometallic catalysts (Cu and Fe) on different supports was lower than that of Cu/Fe/SiO2. Furthermore, we prepared HCl treated FA as support materials of Cu/FA, resulting in deactivation of Cu/FA-HCl due to the leaching of surface Fe by HCl. The results obtained from our study indicate the synergetic effect of coexistence of Cu and Fe on the surface of FA. Lastly, five times recycling test showed a good reusability of Cu/FA, which can imply the potential application of non-noble metal/FA heterostructure for the treatment of wastewater containing the catalytically degradable pollutants. |
| E-mail |
jaehp95@daum.net |
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120th General Meeting of the KCS