完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.author | Sahu, Rama Shanker | en_US |
dc.contributor.author | Li, Dong-Lin | en_US |
dc.contributor.author | Doong, Ruey-an | en_US |
dc.date.accessioned | 2018-08-21T05:53:06Z | - |
dc.date.available | 2018-08-21T05:53:06Z | - |
dc.date.issued | 2018-02-15 | en_US |
dc.identifier.issn | 1385-8947 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1016/j.cej.2017.10.019 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/144269 | - |
dc.description.abstract | Reduced graphene oxide (rGO) is a promising support for electrochemical and environmental applications. However, the role of rGO in dechlorination of chlorinated hydrocarbon by zerovalent iron-based nanoparticles remains unclear. Herein, the rGO-supported bimetallic Fe/Ni nanocomposites were fabricated by chemical reduction method and the microstructures as well as the electrochemical properties of rGO/Fe/Ni, were investigated to elucidate the dechlorination behaviors of trichloroethylene (TCE) under various environmental conditions. Results show that the 10-60 nm Fe/Ni nanoparticles with average particle size of 32 nm are homogeneously dispersed onto the rGO surface. The rGO/Fe/Ni exhibits excellent dechlorination efficiency and rate of TCE is 2.4 times higher than that of free Fe/Ni nanoparticles. Cyclic voltammetric curves and electrochemical impedance spectra indicate that the superior dechlorination activity is attributed to the strong interaction between Fe/Ni and rGO, low internal resistance and rapid diffusion rate of electrons and ions. In addition, the capacitive behavior of rGO can store and transfer 2.7-3.4 electrons produced from Fe-0 to the adsorbed TCE more readily, and then converts TCE to non-toxic ethane via hydrodechlorination in the presence of Ni nanoparticles. The rGO/Fe/Ni can be recycled for at least 8 times to effective dechlorinate TCE. Moreover, the reaction rate of TCE dechlorination can be enhanced 1.26-1.49 times when 5-10 mg L-1 humic acid are added. Results obtained in this study have clearly unveiled the role of rGO in hydrodechlorination of TCE and can provide a new insight into the development of rGO-supported bimetallic Fe/Ni nanoparticles for the enhanced removal of chlorinated pollutants in water and wastewater treatment. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Hydrodechlorination | en_US |
dc.subject | Reduced graphene oxide (rGO) | en_US |
dc.subject | Bimetallic Fe/Ni | en_US |
dc.subject | Trichloroethylene (TCE) | en_US |
dc.subject | Electrochemical performance | en_US |
dc.title | Unveiling the hydrodechlorination of trichloroethylene by reduced graphene oxide supported bimetallic Fe/Ni nanoparticles | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.cej.2017.10.019 | en_US |
dc.identifier.journal | CHEMICAL ENGINEERING JOURNAL | en_US |
dc.citation.volume | 334 | en_US |
dc.citation.spage | 30 | en_US |
dc.citation.epage | 40 | en_US |
dc.contributor.department | 環境工程研究所 | zh_TW |
dc.contributor.department | Institute of Environmental Engineering | en_US |
dc.identifier.wosnumber | WOS:000418533400004 | en_US |
顯示於類別: | 期刊論文 |