Iron-Based Nanoparticles for Toxic Organic Degradation: Silica Platform and Green Synthesis
Meeks, ND; Smuleac, V; Stevens, C; Bhattacharyya, D
HERO ID
2128203
Reference Type
Journal Article
Year
2012
Language
English
PMID
| HERO ID | 2128203 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | Iron-Based Nanoparticles for Toxic Organic Degradation: Silica Platform and Green Synthesis |
| Authors | Meeks, ND; Smuleac, V; Stevens, C; Bhattacharyya, D |
| Journal | Industrial and Engineering Chemistry Research |
| Volume | 51 |
| Issue | 28 |
| Page Numbers | 9581-9590 |
| Abstract | Iron and iron oxide nanoparticles (NPs) are finding wide applications for the remediation of various toxic chloro-organic compounds (such as trichloroethylene, TCE), via reductive and oxidative processes. In this study, Fe NPs (30-50 nm) are synthesized by reduction from ferric ions immobilized (by ion exchange) on a platform (two types of sulfonated silica particles), in order to prevent the NP agglomeration. Next, the Fe NPs are oxidized and their effectiveness for the oxidative dechlorination of TCE via the heterogeneous decomposition of hydrogen peroxide to OH• on the surface of the iron oxide NPs was demonstrated. For the reductive approach, the use of ascorbic acid as a "green" reducing agent in conjunction with a secondary metal (Pd) inhibits NP oxidation and agglomeration through surface adsorbed species. The Fe/Pd NPs have been successfully applied for the dechlorination of TCE (k(SA), surface-area normalized reaction rate, = 8.1 ×10(-4) L/m(2)h). |
| Doi | 10.1021/ie301031u |
| Pmid | 22899876 |
| Wosid | WOS:000306452600016 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |