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- Title
Anchoring Zero-Valent Cu and Ni Nanoparticles on Carboxymethyl Cellulose-Polystyrene–Block Polyisoprene–Block Polystyrene Composite Films for Nitrophenol Reduction and Dyes Degradation.
- Authors
Khan, Noureen; Shahida, Bibi; Khan, Shahid Ali; Ahmad, Zubair; Saeeduddin; Sheikh, Ziviqar; Bakhsh, Esraa M.; Alraddadi, Haneen M.; Fagieh, Taghreed M.; Khan, Sher Bahadar
- Abstract
In the present study, carboxymethyl cellulose (CMC) is dispersed in polystyrene block polyisoprene block polystyrene polymer (PSIS) to make a composite film (CMC-PSIS) through a simple casting technique followed by adsorption of Cu and Ni ions from their respective salt solution. After that, it was converted to their respective Cu0 and Ni0 nanoparticles (NPs) in aqueous medium in the presence of NaBH4 on the surface of CMC-PSIS and was named as CMC-PSIS/Cu and CMC-PSIS/Ni respectively. The prepared catalysts were extensively characterized through different techniques. The morphology of catalysts was studied using FESEM while the EDS and XPS techniques were used for determining the elemental composition and binding energy of both the catalyst. Similarly, FTIR and XRD were used for functional groups and crystalline nature determination of the catalysts. Both catalysts were applied as dip-catalyst in the presence of NaBH4 as reducing agent against the reduction/degradation of four model pollutants such as 4-nitrophenol, methylene blue, rhodamine B (RB), and methyl orange dyes (MO). The highest rate constant value (3.75 × 10–1 min−1) was observed for the MO degradation using CMC-PSIS/Cu. Similarly, the shortest reaction time i.e., (3 min) was observed for MO degradation by using Cu NPs. The RB degraded up to maximum extent (97.7%) among all dyes by using CMC-PSIS/Ni. The experimental data was well-fitted in the zeroth order of kinetics.
- Subjects
COPPER; SOLUTION (Chemistry); BLOCK copolymers; POLYSTYRENE; NITROPHENOLS; CARBOXYMETHYLCELLULOSE
- Publication
Journal of Polymers & the Environment, 2023, Vol 31, Issue 2, p608
- ISSN
1566-2543
- Publication type
Article
- DOI
10.1007/s10924-022-02579-y