dc.contributor.author |
Kumar, Macharla Arun
|
|
dc.contributor.author |
Bae, Sungjun
|
|
dc.contributor.author |
Han, Seunghee
|
|
dc.contributor.author |
Chang, Yoonseok
|
|
dc.contributor.author |
Lee, Woojin
|
|
dc.creator |
Macharla Arun, Kumar |
|
dc.date.accessioned |
2018-01-04T10:48:44Z |
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dc.date.available |
2018-01-04T10:48:44Z |
|
dc.date.issued |
2017-10-15 |
|
dc.identifier |
DOI:10.1016/j.jhazmat.2017.07.030 |
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dc.identifier.citation |
Macharla Arun Kumar, Sungjun Bae, Seunghee Han, Yoonseok Chang, Woojin Lee, Reductive dechlorination of trichloroethylene by polyvinylpyrrolidone stabilized nanoscale zerovalent iron particles with Ni, In Journal of Hazardous Materials, Volume 340, 2017, Pages 399-406 |
en_US |
dc.identifier.issn |
03043894 |
|
dc.identifier.uri |
https://www.sciencedirect.com/science/article/pii/S0304389417305307 |
|
dc.identifier.uri |
http://nur.nu.edu.kz/handle/123456789/3105 |
|
dc.description.abstract |
Abstract We developed a novel stabilized nanoscale zerovalent iron (NZVI) particles with Ni using an electron conducting polymer, polyvinylpyrrolidone (PVP), to selectively dechlorinate trichloroethylene (TCE) to non-toxic intermediates. The size of the PVP stabilized NZVI-Ni ((PVP-NZVI-Ni), average diameter: ∼20nm) is smaller than that of bare NZVI (50–80nm) due to the prevention of agglomeration of the resultant iron particles by PVP. PVP-NZVI-Ni showed a complete removal of TCE in 1h with superior dechlorination kinetics (kobs=5.702h−1) and ethane selectivity (98%), while NZVI-Ni showed 5 times slower dechlorination kinetics (1.218h−1). Other PVP-NZVI-metals (i.e., Cu, Sn, Co, and Mn) also enhanced the TCE dechlorination, but they were much slower (kobs=0.024−0.411h−1) than that of PVP-NZVI-Ni. In column test, PVP-NZVI-Ni exhibited better mobility (95% of PVP-NZVI-Ni recovery in the eluent) than NZVI-Ni (1%). In addition, PVP-NZVI-Ni reductively transform TCE to ethane even under 10 cycles of repeated TCE dechlorination treatment. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Journal of Hazardous Materials |
en_US |
dc.relation.ispartof |
Journal of Hazardous Materials |
|
dc.subject |
Reductive dechlorination |
en_US |
dc.subject |
Nano zerovalent iron (nZVI) |
en_US |
dc.subject |
Polyvinylpyrrolidone |
en_US |
dc.subject |
Trichloroethylene |
en_US |
dc.subject |
Bimetallic nZVI-Ni |
en_US |
dc.title |
Reductive dechlorination of trichloroethylene by polyvinylpyrrolidone stabilized nanoscale zerovalent iron particles with Ni |
en_US |
dc.type |
Article |
en_US |
dc.rights.license |
© 2017 Elsevier B.V. All rights reserved. |
|
elsevier.identifier.doi |
10.1016/j.jhazmat.2017.07.030 |
|
elsevier.identifier.eid |
1-s2.0-S0304389417305307 |
|
elsevier.identifier.pii |
S0304-3894(17)30530-7 |
|
elsevier.identifier.scopusid |
85025073807 |
|
elsevier.volume |
340 |
|
elsevier.coverdate |
2017-10-15 |
|
elsevier.coverdisplaydate |
15 October 2017 |
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elsevier.startingpage |
399 |
|
elsevier.endingpage |
406 |
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elsevier.openaccess |
0 |
|
elsevier.openaccessarticle |
false |
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elsevier.openarchivearticle |
false |
|
elsevier.teaser |
We developed a novel stabilized nanoscale zerovalent iron (NZVI) particles with Ni using an electron conducting polymer, polyvinylpyrrolidone (PVP), to selectively dechlorinate trichloroethylene (TCE)... |
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elsevier.aggregationtype |
Journal |
|
workflow.import.source |
science |
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