Open AccessPhotocatalytic Properties of Microwave-Synthesized TiO2 and ZnO Nanoparticles Using Malachite Green Dye
Author(s) -
A. K. Singh,
Umesh T. Nakate
Publication year - 2013
Publication title -
journal of nanoparticles
Language(s) - English
Resource type - Journals
eISSN - 2314-4858
pISSN - 2314-484X
DOI - 10.1155/2013/310809
Subject(s) - wurtzite crystal structure , malachite green , materials science , photocatalysis , photodegradation , scanning electron microscope , crystallite , anatase , nanoparticle , chemical engineering , nuclear chemistry , nanotechnology , catalysis , zinc , organic chemistry , chemistry , composite material , metallurgy , adsorption , engineering
TiO2 and ZnO nanoparticles (NPs) were synthesized using microwave-assisted method. Synthesized NPs were characterized for their structure, morphology, and elemental composition using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The crystallite size of synthesized NPs of TiO2 and ZnO was about 12.3 and 18.7 nm as obtained from the Scherrer formula from the most intense XRD peak. The synthesized NPs have been found to be in stoichiometric ratio having anatase and hexagonal wurtzite structure for TiO2 and ZnO, respectively, and are spherical in shape. Surface area of TiO2 and ZnO NPs was found to be about 43.52 m2/g and 7.7 m2/g. Photocatalytic (PC) properties of synthesized NPs were studied for malachite green (MG) dye under UV light. TiO2 NPs were found to be highly photocatalytically active among the two, having efficiency and apparent photodegradation rate of 49.35% and , respectively
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom