THE ENHANCED REDUCTION OF BROMATE BY HIGHLY REACTIVE AND DISPERSIVE GREEN NANO-ZEROVALENT IRON (G-NZVI) SYNTHESIZED WITH ONION PEEL EXTRACT
| dc.contributor.author | Lem, Olga | |
| dc.contributor.author | Yoon, Sunho | |
| dc.contributor.author | Bae, Sungjun | |
| dc.contributor.author | Lee, Woojin | |
| dc.date.accessioned | 2021-09-16T05:53:54Z | |
| dc.date.available | 2021-09-16T05:53:54Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | In this study, novel green nano-zerovalent iron (G-NZVI) is synthesized for the first time using onion peel extract for the prevention of rapid surface oxidation and the enhancement of particle dispersibility with a high reductive capacity. The results from various surface analyses revealed that the spherical shape of G-NZVI was fully covered by the onion peel extract composed of polyphenolic compounds with C]C– C]C unsaturated carbon, C]C, C–O, and O–H bonds, resulting in high mobility during column chromatography. Furthermore, the obtained G-NZVI showed the complete removal of 50 mg L 1 of bromate (BrO3 ) in 2 min under both aerobic (k ¼ 4.42 min 1 ) and anaerobic conditions (k ¼ 4.50 min 1 ), showing that G-NZVI had outstanding oxidation resistance compared to that of bare NZVI. Moreover, the observed performance of G-NZVI showed that it was much more reactive than other well-known reductants (e.g., Fe and Co metal organic frameworks), regardless of whether aerobic or anaerobic conditions were used. The effects of G-NZVI loading, the BrO3 concentration, and pH on the BrO3 removal kinetics using G-NZVI were also investigated in this study. The results provide the novel insight that organic onion peel waste can be reused to synthesize highly reactive anti-oxidative nanoparticles for the treatment of inorganic chemical species and heavy metals in water and wastewater. | en_US |
| dc.identifier.citation | Lem, O., Yoon, S., Bae, S., & Lee, W. (2021). The enhanced reduction of bromate by highly reactive and dispersive green nano-zerovalent iron (G-NZVI) synthesized with onion peel extract. RSC Advances, 11(9), 5008–5018. https://doi.org/10.1039/d0ra09897c | en_US |
| dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/5788 | |
| dc.language.iso | en | en_US |
| dc.publisher | RSC Advances | en_US |
| dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
| dc.subject | Type of access: Open Access | en_US |
| dc.title | THE ENHANCED REDUCTION OF BROMATE BY HIGHLY REACTIVE AND DISPERSIVE GREEN NANO-ZEROVALENT IRON (G-NZVI) SYNTHESIZED WITH ONION PEEL EXTRACT | en_US |
| dc.type | Article | en_US |
| workflow.import.source | science |