Effect of Fe-Pd bimetallic nanoparticles on Sphingomonas sp PH-07 and a nano-bio hybrid process for triclosan degradation
SCIE
SCOPUS
- Title
- Effect of Fe-Pd bimetallic nanoparticles on Sphingomonas sp PH-07 and a nano-bio hybrid process for triclosan degradation
- Authors
- Murugesan, K; Bokare, V; Jeon, JR; Kim, EJ; Kim, JH; Chang, YS
- Date Issued
- 2011-05
- Publisher
- ELSEVIER SCI LTD
- Abstract
- In this study, we have evaluated the effect of palladium-iron bimetallic nanoparticles (nFe-Pd) on diphenyl ether (DE) degrading bacterial strain Sphingomonas sp. PH-07 as well as a sequential nano-bio hybrid process with nFe-Pd as catalytic reductant and PH-07 as biocatalyst for degradation of triclosan. Strain PH-07 grew well in the presence of nFe-Pd up to 0.1 g/L in minimal salts medium with DE as carbon source. In aqueous system, TCS (17.3 mu M) was completely dechlorinated within 2 h by nFe-Pd (0.1 g/L) with concomitant release of 2-phenoxyphenol (16.8 mu M) and chloride ions (46 mu M). All possible dichloro-and monochloro-2-phenoxyphenol intermediates were identified by HPLC and GC-MS analyses, and the dechlorination pathway was proposed. Addition of PH-07 cells into the reactor effectively degraded the 2-phenoxyphenol. Our results reveal that strain PH-07 survives well in the presence of nFe-Pd and nFe-Pd/PH-07 hybrid treatment could be a potential strategy for degradation of TCS. (C) 2011 Elsevier Ltd. All rights reserved.
- Keywords
- Triclosan; 2-Phenoxyphenol; Nano-bio hybrid; Reductive dechlorination; Sphingomonas sp PH-07; ACTIVATED-SLUDGE SYSTEMS; ESCHERICHIA-COLI; ZEROVALENT IRON; BIODEGRADATION; TRANSFORMATION; REMOVAL; OXIDATION; DENSITY; WATER; SOIL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17331
- DOI
- 10.1016/J.BIORTECH.2011.02.099
- ISSN
- 0960-8524
- Article Type
- Article
- Citation
- BIORESOURCE TECHNOLOGY, vol. 102, no. 10, page. 6019 - 6025, 2011-05
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