We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Alginate Biopolymer FeNi Nanocomposite Blend Stabilizes Cu Nanoparticles Template for Hydrogenation of Nitrophenol and dyes Discoloration.
- Authors
Al-Ghamdi, Youssef O.
- Abstract
In the current work, alginate (Alg) biopolymer was blended with FeNi nanoparticles (Alg-FeNi) in 1, 3, and 5 weight% and are described as Alg-FeNi1, Alg-FeNi3, and Alg-FeNi5 respectively and are cross-linked by using CaCl2 as a cross-linker. This different Alg-FeNi blend was a solid supporting medium for stabilizing Cu NPs (Cu@Alg-FeNi). The synthesized catalyst was characterized through FESEM, EDS, Raman, and XRD. The templates of Cu@Alg-FeNi1-5 were used as dip-catalysis for the hydrogenation of 4-nitrophenol (4NP) and discoloration of methylene blue (MB) and methyl orange (MO) dyes in an aqueous medium by using NaBH4 as a reductant. Various kinetics models were used to deduce the rate constant (kapp) and R2 values for the degradation reactions. By increasing the amount of FeNi, the reaction rate was also enhanced for all three model pollutants, and Cu@Alg-FeNi5 exhibited the most potent catalyst activity. The kapp and R2 value derived from zeroth order kinetics was 3.8 × 10− 1 min− 1 and 0.9188 R2 values. In the case of 4NP, MB, and MO dyes, the experimental data were well-fitted in zero-order kinetics, suggesting that the reaction rate is independent of the reactant concentration. Simultaneous removal of 4NP and MB indicated its practical applicability, and the catalyst showed good recyclability.
- Subjects
COPPER; ALGINIC acid; NITROPHENOLS; HYDROGENATION; POLLUTANTS; WASTE recycling; BIOPOLYMERS
- Publication
Journal of Polymers & the Environment, 2023, Vol 31, Issue 5, p1812
- ISSN
1566-2543
- Publication type
Article
- DOI
10.1007/s10924-022-02675-z