Eggshell Membrane Assisted CdS Nanoparticles for Manganese Removal
Roy, A; Velusamy, S; Sundaram, S; et al.Mallick, T
Date: 6 January 2021
Journal
Advanced Materials Letters
Publisher
VBRI Press / International Association of Advanced Materials (IAAM)
Publisher DOI
Abstract
Domestic food waste chicken eggshells can produce naturally abundant protein-based eggshell
membranes (ESMs), which is used as a significant source of sulphur to synthesize hexagonal CdS
NP under 354 nm (UVA) light irradiation. The approach of CdS NP synthesis in the way of UVA light
irradiation technique using ESM is distinctive ...
Domestic food waste chicken eggshells can produce naturally abundant protein-based eggshell
membranes (ESMs), which is used as a significant source of sulphur to synthesize hexagonal CdS
NP under 354 nm (UVA) light irradiation. The approach of CdS NP synthesis in the way of UVA light
irradiation technique using ESM is distinctive compare to other traditional methods. Various
physicochemical methods were employed to validate the formation of CdS NP by using ESM assisted
process. The obtained nanoparticles (NPs) are contained an average particle size of ~5 nm as
obtained from the transmission electron microscopy study. The capability of the synthesized CdS
NPs was further explored in the catalysis reaction for the decomposition of KMnO4, considered as
toxic MnVII (violet) ion source at room temperature. The degradation results as monitored by UV-Vis
spectrophotometry analysis confirms the CdS NPs exhibit excellent catalytic activity towards the
reduction of KMnO4, toxic MnVII (Violet) ion to MnO2 as non-toxic Mn
IV(brownish yellow) ion in
aqueous solution (pH 7.0) at room temperature by 50 min. The KMnO4 decomposition reaction follows
a pseudo-first-order reaction and found the constant rate value of 1.9 x 10-2 min-1
. This study
encourages the potential use of natural waste materials for wastewater treatment.
Engineering
Faculty of Environment, Science and Economy
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