Abstract
Polyoxometalates (POMs), Na3PW12O40 and H5AlW12O40 were entrapped in silica matrices using the sol-gel process and utilized as reducing electron exchange columns for the reduction of bromate. Bromate is a toxic disinfection by-product, generated during the ozonation process of water. The results distinctly show that this hazardous compound can be efficiently removed from aqueous media at different pH values without the addition of any chemicals to the media. Furthermore, the reducing capacity of the matrices can be recharged without loss of activity. This is the first reported practicable application of reducing electron exchange columns.
| Original language | English |
|---|---|
| Pages (from-to) | 419-422 |
| Number of pages | 4 |
| Journal | Chemical Engineering Journal |
| Volume | 330 |
| DOIs | |
| State | Published - 2017 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2017 Elsevier B.V.
Funding
This study was supported in part by a grant from the PAZY foundation. Neelam was supported by a fellowship during her Ph.D. studies at Ariel University. The authors would like to thank Professor Ira Weinstock from Ben-Gurion University of the Negev, Israel for providing the H5AlW12O40 used in this study.
| Funders | Funder number |
|---|---|
| PAZY Foundation | |
| Ariel University |
Keywords
- Bromate reduction
- Electron exchange column
- Polyoxometalate
- Sol-gel