期刊
CELLULOSE
卷 28, 期 17, 页码 11067-11080出版社
SPRINGER
DOI: 10.1007/s10570-021-04186-x
关键词
Cellulose filter paper; Bimetal nanoparticles; Catalyst; Nitrophenol; Reduction
资金
- Institutional Fund Projects [IFPHI-368-130-2020]
- Ministry of Education
- King Abdulaziz University, DSR, Jeddah, Saudi Arabia
This research work successfully synthesized CMC-AgCo nanoparticles and applied them to catalyze the reduction of organic nitroaromatic pollutants. The CFP/CMC-AgCo catalyst showed good catalytic performance and ease of recycling, with excellent reduction effects on both nitroaromatic compounds.
In this research work, we present a synthesis of silver and cobalt bimetal nanoparticles stabilized by a carboxymethyl cellulose biopolymer (CMC-AgCo) and its coating on a cellulose filter paper (CFP) to prepare the dip-catalyst. All the prepared samples were subjected to characterization by scanning electron microscopy for surface morphology, EDX, XRD and thermogravimetric analysis. The catalytic properties of the CFP/CMC-AgCo as dip-catalysts were evaluated in the reduction of organic nitroaromatic pollutants of 2,6-dinitrophenol to 2,6-diaminophenol as well as the 4-nitrophenol to 4-aminophenol. It was found that the reduction reaction advanced with the pseudo-first-order kinetics. The CFP/CMC-AgCo catalyzed the 2,6-diaminophenol and 4-nitrophenol with a reaction rate constant of 0.1244 and 0.177 min(- 1), respectively. The separation of the CFP/CMC-AgCo was easy as it required a simple pulling of the strip from the reaction medium. Importantly, the catalytic reaction rates and conversion percentages of the two nitroaromatics were well-maintained for multiple times during recycling experiments.
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