Photocatalytic degradation of commonly used organic dye in Nepal using nanoparticles
Date
2024-04
Authors
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Journal ISSN
Volume Title
Publisher
Institute of Science & Technology
Abstract
The utilization of organic dyes across various industries has significantly contributed to the
vibrant colors in fabrics, papers, and wools. However, the release of these dyes into water
bodies poses a significant environmental challenge due to their persistent nature as
pollutants. To address this issue, researchers have been exploring different methods for the
removal of dye pollutants from water, with nanoparticles emerging as promising catalysts
for degradation processes under light exposure. In this research work, zirconia (ZrO2) and
hydroxyapatite (HAp) nanomaterials were investigated as photocatalysts for degrading
methylene blue, a prevalent dye in Nepal. Employing an eco-friendly green synthesis route,
both nanomaterials were successfully prepared and characterized using techniques such as
X-ray diffraction (XRD), Fourier Transmission-Infrared spectroscopy (FT-IR), and UV-
Visible spectroscopy. FTIR analysis confirmed the successful green synthesis of zirconia
and hydroxyapatite, while XRD results indicated their nanometric size range. The
degradation of methylene blue was conducted using the synthesized nanomaterials under
sunlight exposure, with degradation efficiency dependent on nanoparticle dosage and dye
concentration. Notably, both ZrO2 and HAp nanoparticles exhibited significant efficacy in
dye degradation, with ZrO2 demonstrating superior performance at low dye concentrations
and HAp exhibiting remarkable effectiveness at higher nanoparticle doses. This research
underscores the promising potential of ZrO2 and HAp nanoparticles as efficient catalysts
for mitigating organic dye pollution in water bodies, offering a sustainable approach to
address this pressing environmental challenge.
Description
Keywords
zirconia, hydroxyapatite, organic dyes, degradation