Degradation of Orange II by Fenton reaction using ilmenite as catalyst
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Abstract
This work deals with the degradation of the
azo-dye Orange II (OII) by a heterogeneous process
with dark Fenton. Natural and purified ilmenites from
Colombian soil were used as catalysts. The catalysts
have different physicochemical properties and are basically
composed of TiO2 and Fe2O3. Ilmenites (FeTiO3),
raw materials highly available at low cost, were studied
by means of conventional metallography (polished grain
mounts), as well as BET, XRD, and XRF in order to
determine their possible source area and the factors that
influence their use as a catalyst for OII degradation. The
pH, the ilmenite amount, the initial CH2O2, and the
temperature of the reaction system were studied.
Complete degradation of dye was observed within 7 h,
while 90 % of OII was removed in 7 h using Cumaribo
Ilmenite
Link to resource
https://link.springer.com/article/10.1007%2Fs11356-016-7263-3Collections
- Año 2017 [150]
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