Open AccessEffective Photocatalytic Degradation of Nitrobenzene by Magnetite Modified Titania Composite
Author(s) -
Eko Sri Kunarti,
R. Roto,
S. Sutarno,
Iis Setyo Budi,
Mardis Mardiansyah
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23137
Subject(s) - nitrobenzene , photocatalysis , calcination , photodegradation , chemistry , magnetite , degradation (telecommunications) , nuclear chemistry , fourier transform infrared spectroscopy , composite number , irradiation , transmission electron microscopy , chemical engineering , catalysis , materials science , nanotechnology , composite material , metallurgy , organic chemistry , telecommunications , physics , computer science , nuclear physics , engineering
Magnetic photocatalyst of magnetite modified titania composite Fe3O4/TiO2 was prepared byco-precipitation and sol-gel methods followed by calcination at 450 ºC. The produced material wasconfirmed by XRD, FTIR spectrophotometer, vibrating sample magnetometer and transmission electronmicroscope. The solid material was tested as a photocatalyst for degradation of nitrobenzene under UVlight irradiation. The progress of degradation of nitrobenzene was monitored by using a UV-visiblespectrophotometer. The photodegradation of nitrobenzene could be best realized at a medium pH of 7and 120 min of irradiation. The reaction rate constant of nitrobenzene degradation catalyzed by TiO2and Fe3O4/TiO2 solids were found to be 0.0058 min-1 and 0.0092 min-1, respectively. The photocatalystwas recoverable by use of a magnetic bar and reusable.