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Published in: Cellulose 18/2021

18-10-2021 | Original Research

Synthesis and catalytic evaluation of silver@nickel oxide and alginate biopolymer nanocomposite hydrogel beads

Authors: Ashi Khalil, Nauman Ali, Abdullah M. Asiri, Tahseen Kamal, Sher Bahadar Khan, Jawad Ali

Published in: Cellulose | Issue 18/2021

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Abstract

In this study, silver–nickel oxide/calcium alginate (Ag@NiO/Alg) hydrogel beads were synthesized by incorporating the nanomaterial into the polymer solution followed by their extrusion from a syringe to coagulating solution for crosslinking. The Ag@NiO/Alg beads formed through this procedure were characterized by different instrumental techniques. The catalytic efficiency of Ag@NiO/Alg was evaluated for the reduction of rhodamine B (RhB) and methyl orange (MO), in the presence of sodium borohydride. After applying various kinetic order equations to the experimental data, the reactions were found to follow pseudo-first order kinetics using the Ag@NiO/Alg catalyst. The apparent rate constant (kapp) was determined as 0.33358 min−1 and 0.20882 min−1 for the catalytic reduction of RhB and MO, respectively. Furthermore, reduction reactions were studied at varying dye concentration and catalyst dosages. The recovered catalyst was reused up to five cycles without significant drop in the activity.

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Appendix
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Literature
go back to reference Ali N, Khan A, Riaz A et al (2020b) Photocatalytic performance evaluation of bismuth doped tin-dioxide under UV and direct sunlight irradiation for congo red dye degradation. J Chem Soc Pak 42:687–695 Ali N, Khan A, Riaz A et al (2020b) Photocatalytic performance evaluation of bismuth doped tin-dioxide under UV and direct sunlight irradiation for congo red dye degradation. J Chem Soc Pak 42:687–695
Metadata
Title
Synthesis and catalytic evaluation of silver@nickel oxide and alginate biopolymer nanocomposite hydrogel beads
Authors
Ashi Khalil
Nauman Ali
Abdullah M. Asiri
Tahseen Kamal
Sher Bahadar Khan
Jawad Ali
Publication date
18-10-2021
Publisher
Springer Netherlands
Published in
Cellulose / Issue 18/2021
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-04248-0