This work is first report showed that supported TiO2 NPs on alumina could act catalytic activity on
peroxyoxalate chemiluminescence system. In this work the catalytic effect of supported Titanium
dioxide nanoparticles (TiO2 NPs) on the trichloroperoxy oxalate – hydrogen peroxide (PO-CL)
reaction is investigated. Supported TiO2 nanoparticles exhibited the better CL catalysis activity than
SnO and Carbon nanotubes. Supported TiO2 nanoparticles catalyze the chemiluminescence
reaction between TCPO (bis-(2,4,6-trichlorophenyl) oxalate) and H2O2 and produce a strong CL
signal in the presence of triazinyl dye derivative as fluorophore. The CL signal intensity was linear
with the hydrogen peroxide concentration in the range of 5 to 1000 nmol ml-1 with a detection limit of
1.2 nmol ml-1 and regression coefficient was 0.992 (n=4). The relative standard deviations for
measurement of 300 and 500 nmol ml-1 hydrogen peroxide were 2.2 and 3.4%, respectively(n=4).
Hydrogen peroxide concentration in river water was 8.7 nmol ml-1 with RSD=5.4%(n=3).
Optimization for the Determination of Hydrogen Peroxide in River Water Based on the Fenton Reaction with Terephthalate
