Novel biomolecule-capped CdTe nanoparticles for highly efficient photodegradation of methyl orange dye under visible-light irradiation

[Display omitted] •Biomolecule-capped CdTe nanoparticles were prepared through simple hydrothermal method.•L-arginine capped CdTe nanoparticles showed enhanced photoactivity under visible-light.•The hydroxyl and superoxide radical play a chief role in the degradation of methyl orange dye. In this st...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2020-09, Vol.275, p.128167, Article 128167
Main Authors: Palanisamy, G., Nguyen, Ba-Son, Nguyen, Vu-Quynh, Nguyen, Van-Huy, Bhuvaneswari, K., Sivashanmugan, Kundan, Pazhanivel, T.
Format: Article
Language:English
Subjects:
Biomolecules
Cadmium telluride
Cadmium tellurides
Catalytic activity
CdTe nanoparticles
Dyes
Fourier transforms
Infrared analysis
L-arginine
Light irradiation
Materials science
Methyl orange dye
Morphology
Nanoparticles
Photocatalysis
Photocatalyst
Photodegradation
Photoluminescence
Spectrum analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •Biomolecule-capped CdTe nanoparticles were prepared through simple hydrothermal method.•L-arginine capped CdTe nanoparticles showed enhanced photoactivity under visible-light.•The hydroxyl and superoxide radical play a chief role in the degradation of methyl orange dye. In this study, L-arginine-capped cadmium telluride (CdTe) nanoparticles (NPs) were successfully prepared using the hydrothermal process. The formation, morphology, and physicochemical properties of the prepared samples were successfully characterized using different analytical techniques, such as X-ray diffraction (XRD), Fourier transforms infrared (FTIR), High-resolution transmission electron microscopy (HRTEM), Ultraviolet–visible spectroscopy (UV–Visible) and Photoluminescence spectroscopy (PL). The photocatalytic activity of the prepared samples was evaluated by the degradation of methyl orange (MO) dye under visible-light. It was observed that 86.3% MO dye removal efficiency was achieved over L-arginine-capped CdTe NPs, which was 1.6 times higher than that of the bare CdTe NPs. Interestingly, the L-arginine-capped CdTe photocatalyst was recycled in four consecutive runs without significant activity loss.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.128167