File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1016/j.scitotenv.2012.04.051
- Scopus: eid_2-s2.0-84862252378
- PMID: 22595555
- WOS: WOS:000307085100026
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Improved debromination of polybrominated diphenyl ethers by bimetallic iron-silver nanoparticles coupled with microwave energy
Title | Improved debromination of polybrominated diphenyl ethers by bimetallic iron-silver nanoparticles coupled with microwave energy |
---|---|
Authors | |
Keywords | Bimetallic Iron-Silver Debromination Microwave Energy Nano Technologies Pbdes Zero Valent Iron |
Issue Date | 2012 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv |
Citation | Science Of The Total Environment, 2012, v. 429, p. 300-308 How to Cite? |
Abstract | This study focused on the enhanced debromination of decabromodiphenyl ether (BDE-209) and 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) by Fe-Ag nano-particles under microwave radiation (Fe-Ag/MW). Fe-Ag bimetallic nano-particles were synthesized by reductive deposition of Ag on nano-iron and characterized with a number of techniques, including BET, XRD, TEM and XPS. Approximately 97% of BDE-209 or 78% of BDE-47 were rapidly transformed to its degradation products within 8. min in the Fe-Ag/MW system. The dehalogenation efficiency of polybrominated diphenyl ethers (PBDEs) was enhanced apparently by microwave radiation. Moreover, the microwave thermal energy played a significant role in accelerating the degradation reactions. Compared with nano-iron alone, the deposition of Ag also increased the rates of degradation. GC-MS and LC-MS/MS analyses of PBDEs' degradation products reveals that the possible degradation pathway proceeds through stepwise debromination from [. n]-bromo- to [. n-1]-bromo-DE, with bromine being substituted by hydrogen sequentially. Di- to nona-brominated congeners were formed during BDE-209 reduction, while diphenyl ether to tri-BDEs were observed during BDE-47 degradation. These results suggest that PBDEs can be debrominated rapidly by the innovative processes that may be environmentally friendly in applications. © 2012 Elsevier B.V. |
Persistent Identifier | http://hdl.handle.net/10722/179280 |
ISSN | 2023 Impact Factor: 8.2 2023 SCImago Journal Rankings: 1.998 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Luo, S | en_US |
dc.contributor.author | Yang, S | en_US |
dc.contributor.author | Sun, C | en_US |
dc.contributor.author | Gu, JD | en_US |
dc.date.accessioned | 2012-12-19T09:53:41Z | - |
dc.date.available | 2012-12-19T09:53:41Z | - |
dc.date.issued | 2012 | en_US |
dc.identifier.citation | Science Of The Total Environment, 2012, v. 429, p. 300-308 | en_US |
dc.identifier.issn | 0048-9697 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/179280 | - |
dc.description.abstract | This study focused on the enhanced debromination of decabromodiphenyl ether (BDE-209) and 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) by Fe-Ag nano-particles under microwave radiation (Fe-Ag/MW). Fe-Ag bimetallic nano-particles were synthesized by reductive deposition of Ag on nano-iron and characterized with a number of techniques, including BET, XRD, TEM and XPS. Approximately 97% of BDE-209 or 78% of BDE-47 were rapidly transformed to its degradation products within 8. min in the Fe-Ag/MW system. The dehalogenation efficiency of polybrominated diphenyl ethers (PBDEs) was enhanced apparently by microwave radiation. Moreover, the microwave thermal energy played a significant role in accelerating the degradation reactions. Compared with nano-iron alone, the deposition of Ag also increased the rates of degradation. GC-MS and LC-MS/MS analyses of PBDEs' degradation products reveals that the possible degradation pathway proceeds through stepwise debromination from [. n]-bromo- to [. n-1]-bromo-DE, with bromine being substituted by hydrogen sequentially. Di- to nona-brominated congeners were formed during BDE-209 reduction, while diphenyl ether to tri-BDEs were observed during BDE-47 degradation. These results suggest that PBDEs can be debrominated rapidly by the innovative processes that may be environmentally friendly in applications. © 2012 Elsevier B.V. | en_US |
dc.language | eng | en_US |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv | en_US |
dc.relation.ispartof | Science of the Total Environment | en_US |
dc.subject | Bimetallic Iron-Silver | en_US |
dc.subject | Debromination | en_US |
dc.subject | Microwave Energy | en_US |
dc.subject | Nano Technologies | en_US |
dc.subject | Pbdes | en_US |
dc.subject | Zero Valent Iron | en_US |
dc.title | Improved debromination of polybrominated diphenyl ethers by bimetallic iron-silver nanoparticles coupled with microwave energy | en_US |
dc.type | Article | en_US |
dc.identifier.email | Gu, JD: jdgu@hkucc.hku.hk | en_US |
dc.identifier.authority | Gu, JD=rp00701 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/j.scitotenv.2012.04.051 | en_US |
dc.identifier.pmid | 22595555 | - |
dc.identifier.scopus | eid_2-s2.0-84862252378 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-84862252378&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 429 | en_US |
dc.identifier.spage | 300 | en_US |
dc.identifier.epage | 308 | en_US |
dc.identifier.isi | WOS:000307085100026 | - |
dc.publisher.place | Netherlands | en_US |
dc.identifier.scopusauthorid | Luo, S=24399484000 | en_US |
dc.identifier.scopusauthorid | Yang, S=12143579000 | en_US |
dc.identifier.scopusauthorid | Sun, C=7404247694 | en_US |
dc.identifier.scopusauthorid | Gu, JD=7403129601 | en_US |
dc.identifier.issnl | 0048-9697 | - |