Fast and highly efficient catalytic degradation of dyes using κ-carrageenan stabilized silver nanoparticles nanocatalyst

Sadanand Pandey; Jeong Yeon Do; Joonwoo Kim; Misook Kang

doi:10.1016/j.carbpol.2019.115597

Fast and highly efficient catalytic degradation of dyes using κ-carrageenan stabilized silver nanoparticles nanocatalyst

Carbohydr Polym. 2020 Feb 15:230:115597. doi: 10.1016/j.carbpol.2019.115597. Epub 2019 Nov 11.

Authors

Sadanand Pandey¹, Jeong Yeon Do², Joonwoo Kim³, Misook Kang⁴

Affiliations

¹ Department of Chemistry, College of Natural Sciences, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea. Electronic address: sadanand.au@gmail.com.
² Department of Chemistry, College of Natural Sciences, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
³ Particulate Matter Research Center, Research Institute of Industrial Science & Technology (RIST), 187-12, Geumho-ro, Gwangyang-si, Jeollanam-do, 57801, Republic of Korea.
⁴ Department of Chemistry, College of Natural Sciences, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea. Electronic address: mskang@ynu.ac.kr.

PMID: 31887912
DOI: 10.1016/j.carbpol.2019.115597

Abstract

Herein, we have reported the synthesis of silver nanoparticles (AgNPs) nanocatalyst by using high-molecular-weight κ-carrageenan. The developed methodology was rapid, facile, ecofriendly and cost effective, which did not require subsequent processing for reduction or stabilization of AgNPs. The physico-chemical characterization was performed by FT-IR, zeta potential (ζ), XRD, TGA, XPS and TEM techniques. The TEM results revealed that the AgNPs were spherical in shape, with average size of 12 nm, and face centered cubic (FCC) structure throughout the polymer matrix and was stable without any protecting or capping reagents over two months. The synthesized nanocatalyst exhibited high catalytic degradation and mineralization of industrially important organic dyes such as Rhodamine B, and methylene blue, with a degradation efficiency of ∼100 % in a very short interval. The fast kinetics of the dye degradation is quite unique compared to the reported literatures based on various catalyst systems where slow kinetics was reported.

Keywords: Catalytic degradation; Kappa-Carrageenan (PubChem CID: 11966249); Methylene blue (PubChem CID: 6099); Methylene blue dye; Rhodamine B (PubChem CID: 6694); Rhodamine B dye; Silver nanoparticles; Silver nitrate (PubChem CID: 24470); Sodium borohydride (PubChem CID: 4311764); κ-Carrageenan gum.