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Photocatalytic Performance on Visible Light Induced ZnS QDs‐MgAl Layered Double Hydroxides Hybrids for Methylene Blue Dye Degradation
Author(s) -
Bhuvaneswari Kandasamy,
Palanisamy Govindasamy,
Pazhanivel Thangavelu,
Bharathi Ganapathi,
Nataraj Devaraj
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803183
Subject(s) - photocatalysis , photodegradation , methylene blue , x ray photoelectron spectroscopy , materials science , high resolution transmission electron microscopy , visible spectrum , photochemistry , fourier transform infrared spectroscopy , hybrid material , nuclear chemistry , chemical engineering , chemistry , nanotechnology , catalysis , organic chemistry , optoelectronics , transmission electron microscopy , engineering
Semiconductor hybrids based photocatalytic reaction is one of the prominent methods to treat wastewater, containing the organic pollutants. In the present work, we report the development of ZnS QDs‐LDH hybrid structure for the photocatalytic treatment of methylene blue (MB) dye. The as‐synthesized ZnS QDs‐LDH hybrid structure was characterized by XRD, FESEM, HRTEM, EDX, XPS, and FTIR to analyze the formation, morphology and chemical structure. The UV‐Vis DRS was used to investigate the optical absorption characteristics of the ZnS QDs‐LDH hybrid. The photocatalytic performance of the as‐prepared samples was investigated against the methylene blue dye molecule under UV‐Vis light irradiation. The scavenging experiments were carried out in order to probe the radical formation by using EDTA, benzoquinone, and 2‐proponal. The cycling experiments were performed to check the stability of the ZnS QDs‐LDH hybrid photocatalyst after repeated photodegradation experiments.